Database Info

Returning To Stock Nexus One

FIRST AND FOREMOST: DISCLAIMER,
I am not responsible for any steps your take in modifying or following the steps described below. This is simply a guide to assist you with restoring your phone. If your break, drop, ruin, brick, wipe, slap, chop, honk, ding, open, slave or unock your phone and it does not respond how you expected sorry your phone, your responsibility.
What is described below worked for me.
Ok, after searching for hours or nearly days for a way to unroot and get back tot he stock rom that allows for Over the Air Updates (OTA's) I finally figured it out after piecing together tons of threads on related subjects.
Anyway here it is...
On my nexus one I was using a CyanogenMod Rom and wanted to revert back to stock because of a few glitches I didn't like. I was presented with tons of problems when trying to do so. This is what I did.
For dummies version:
GET THE NECESSARIES
(1) Downloaded the stock ROM FRG83 from Modaco HERE
(2) Unzipped this to a folder I created on my PC (I named it Platform-Tools)
(3) Downloaded and Installed the Android SDK. This comes with ADB and driver for your phone which is a must need. HERE
(4) Copied all files from the android/android-sdk/platform-tools folder to the folder I created earlier in step 2.
(5) Downloaded fastboot command (Available in attachment below)
(6) Downloaded flash_image.zip (Available in attachment below) (Optional - flash_image.zip only needed if using ADB method and is not described below or recommended)
UNLOCK BOOT LOADER
(1) Unlock Boot Loader (Yeah you have to do it). If not done you will get an error saying unable to verify signature when trying to load the img files.
-Boot in to boot loader by Powering on your phone while holding down the trackball
-Connect phone to your pc using a usb data cable
-on the boot screen it should say something like "fastboot usb" after doing so
-Type fastboot oem unlock
-Read the warning and accept it
(2) Boot in to boot loader by Powering on your phone while holding down the trackball
(3) Should say unlocked at the top
PHONE UNLOCKED AND READY TO FLASH YOUR PHONE TO STOCK
(1) If not done already Boot in to boot loader by Powering on your phone while holding down the trackball
(2) Connect phone to your PC with a USB Data Cable
(3) From your PC command prompt change directory to where you save your img files and the fastboot command stuff
(4) Type The Following In Sequence from your PC Command prompt:
fastboot flash boot (YOUR DIRECTORY)\boot.img
fastboot flash recovery (YOUR DIRECTORY)\recovery.img
(5) Boot in to recovery
-Select bootloader from the menu
-Select recovery from the next menu
(Wait, a triange with an exclamation mark appears)
-Press the power button along with the up volume button
(Boots to the android recovery menu)
-Wipe everything
(6) Reboot in to the boot loader and Type The Following from your PC command prompt In Sequence
fastboot flash radio (YOUR DIRECTORY)\radio.img
fastboot flash system (YOUR DIRECTORY)\system.img
When done reboot and enjoy your fully restored un-rooted back to stock nexus one and enjoy all your OTA Updates as they are released.
If there is something I missed or needs correction let me know and I will make necessary revisions.

pardon my ignorance but i was under the understanding that the Nexus One already ran Stock android

ThunderStick said:
FIRST AND FOREMOST:
Anyway here it is...
On my nexus one I was using a CyanogenMod Rom and wanted to revert back to stock because of a few glitches I didn't like. I was presented with tons of problems when trying to do so. This is what I did.
johnston9234 said:
pardon my ignorance but i was under the understanding that the Nexus One already ran Stock android
Click to expand...
Click to collapse
At the start he mentioned he was running cyanogenmod (quoted)...it's also mentioned in his signature.
Click to expand...
Click to collapse

Anybody that needs to download and flash an Original ROM obviously didn't follow the first rule of flashing. NANDROID BACKUP YOUR STOCK ROM FIRST!!!
To return to stock for OTA updates all you need to do is restore your Nandroid backup and reboot once. That's all.

Can't flash recovery/ROMs/achieve root?

I achieved the unlocked bootloader, at least I believe, per instructions via the HTC website. But I can't seem to be able to flash a recovery or achieve root. I can boot into HBOOT, when I try to click Recovery, it takes me to some page explaining software is not to be distributed, blah blah. Then it just boots up like normal?
I'm afraid I don't understand? Everything i've tried fails, why is that?

New Jer-Z said:
I achieved the unlocked bootloader, at least I believe, per instructions via the HTC website. But I can't seem to be able to flash a recovery or achieve root. I can boot into HBOOT, when I try to click Recovery, it takes me to some page explaining software is not to be distributed, blah blah. Then it just boots up like normal?
I'm afraid I don't understand? Everything i've tried fails, why is that?
Click to expand...
Click to collapse
You skipped right over the "can't seem to able to flash a recovery."
Please explain in detail the instructions you followed AFTER unlocking via HTCdev.com. This includes files you downloaded, where you put them, how you attempted to flash, etc.
These details will be very helpful. Don't worry, sounds like you're not in any serious trouble at all. Just don't go flashing anything you see.
Also, please post this to the Q&A forum or General next time. This development forum is intended for development posts ONLY (ie. ROMs, Kernels, Radio's, etc). Just a heads up. Welcome to the forums

Aahhh, forgive me!
And thank you for the patience and understanding!
I used the Hasooon2000 toolkit. I got as far as getting to the screen where HTC wants to confirm with me that I do want to unlock the bootloader, I clicked yes, and it rebooted. Then I tried to flash recovery. The CMD prompt will say it was pushed to the phone successfully, but when I try to reboot into recovery, I don't get very far. To my understanding, I can't apply perm root without getting to recovery, but with the bootloader unlocked, why can't I even flash one?

Moved To Q&A​
Please post all questions in the Q&A section​

New Jer-Z said:
Aahhh, forgive me!
And thank you for the patience and understanding!
I used the Hasooon2000 toolkit. I got as far as getting to the screen where HTC wants to confirm with me that I do want to unlock the bootloader, I clicked yes, and it rebooted. Then I tried to flash recovery. The CMD prompt will say it was pushed to the phone successfully, but when I try to reboot into recovery, I don't get very far. To my understanding, I can't apply perm root without getting to recovery, but with the bootloader unlocked, why can't I even flash one?
Click to expand...
Click to collapse
Ahhh, not to stir up the pot here, but you're getting vague again with what's going on. You say "when I try to reboot into recovery, I don't get very far". What do you mean by this? Details are extremely important in helping you. Sounds like you're saying that recovery was successfully pushed, but then I didn't get any details as to what's going on when you attempt to load recovery. Also, which recovery file did you use? Use this one
I'm not trying to get on to your case here, but you've got to be really specific when you say stuff doesn't work, because that doesn't help us diagnose your issue. When your recovery is done flashing, you should be able to access the bootloader by holding Pwr + Vol-Down for like 5 secs, then choose recovery (that or fastboot>recovery....I cant recall if recovery is a main menu item). What happens after you choose that? Mine shows the htc splash screen, with a development message in red, and then it boots Clockworkmod.

No, no, lol I totally understand, I guess I am being vague.
I was going to go into details, but I was at work. Interestingly enough, my phone died, and when I plugged it and let it charge for a little bit, the phone booted right into CWM touch - so odd! So I was like, ok, i've achieved root - well, no, cuz I opened ROM Manager and it says SU couldn't be found.
BEFORE, when I would do what you said I should do, it would take me to the HTC splash screen where it was in red text, some disclaimer about some proprietary information crap, then it would skip recovery and just boot into Android -___-
Let's see if I can replicate booting into recovery now. (What method are you using to flash your recoveries?)
EDIT: Well it looks like I can't get back into recovery. Same thing as mentioned above. I can get to the fastboot screen, but if I click recovery, it takes me to that HTC disclaimer screen, the little loading bar loads then - poof - screen goes blank and Android boots up.

I have the same problem -_-! Can someone help please
The recovery image was flashed succesfully from Hasoon2000's toolkit. But when i go to the bootloader and select Recovery, I get the red warning for from HTC about how this is for development purpose only... then the phone's screen goes black, then it boots into the stock ROM.

Cant flash recovery
Hello everyone.
I have a similar problem. I successfully proceeded with the bootloader, but now I can't install the recovery. It simply wont flash.
I was following the xda tutorial that's in this very forum, but i got stuck: In my desktop i downloaded the needed files (or so I believe), and so i have in my desktop a folder called "carpeta" (random name) with these files within: adb.exe, adbwinapi.dll, fastboot and 3 different recovery images i have tried to flash.
I use mac, so i open the command prompt for mac (terminal) and go to the "carpeta" folder and after that, I type "cd fastboot flash recovery xxxxx.img" (the xxx are the names of the recovery images that i have in the folder, one at a time) but it simply wont flash anything. I attach a screenshot to ilustrate what happens...
Please help me
http :// img710.imageshack.us/img710/6026/capturadepantalla201205.png

Guys it works if you flash the recovery manually through the command prompt. I think there might be a bug or something in the toolkit because the manual way worked for me.
Here is what I did:
(I am not a programmer so I can't guarantee this will work for you. Worked for me, but try at your own risk)
-Copied the recovery image to the same folder as abd
-Plugged in the phone with USB debugging on
-Opened command prompt
-navigated to the folder with adb with "cd folder_location"
-typed: "adb kill-server", then "adb devices"to make sure the device was connected
-typed "adb reboot-bootloader" to boot into bootloader
-typed "fastboot flash recovery recovery_file_name.img"
-Select bootloader>recovery using the vol up and down and pwr button
and voila recovery
Hope this helps

I'll give it a shot later tonight on my lunch break.

batiste93 said:
Guys it works if you flash the recovery manually through the command prompt. I think there might be a bug or something in the toolkit because the manual way worked for me.
Here is what I did:
(I am not a programmer so I can't guarantee this will work for you. Worked for me, but try at your own risk)
-Copied the recovery image to the same folder as abd
-Plugged in the phone with USB debugging on
-Opened command prompt
-navigated to the folder with adb with "cd folder_location"
-typed: "adb kill-server", then "adb devices"to make sure the device was connected
-typed "adb reboot-bootloader" to boot into bootloader
-typed "fastboot flash recovery recovery_file_name.img"
-Select bootloader>recovery using the vol up and down and pwr button
and voila recovery
Hope this helps
Click to expand...
Click to collapse
tried unsuccessfully.
on screen this is what I see in my htc one s:
***unlocked***
vle put ship s-on rl
radio- o.15.315018.19_2
opendsp-v21.1.0.32.0314
emmc-boot
mar 15 2012.23:37:23
fastboot usb
bootloader
reboot
reboot bootloader
powerdown
------------------
and each time i try to flash the recovery, i get a "not a directory" or "no such file or directory" message...

alexjuanes said:
tried unsuccessfully.
on screen this is what I see in my htc one s:
***unlocked***
vle put ship s-on rl
radio- o.15.315018.19_2
opendsp-v21.1.0.32.0314
emmc-boot
mar 15 2012.23:37:23
fastboot usb
bootloader
reboot
reboot bootloader
powerdown
------------------
and each time i try to flash the recovery, i get a "not a directory" or "no such file or directory" message...
Click to expand...
Click to collapse
Make sure that you navigate to the proper folder using the "cd" command.(for example" cd C:\Fastboot ", if your adb and recovery are in that location)
Make sure that the Clockwork Mod recovery file is in the same folder as the adb and make sure that you type the file name correctly
I used these file and put the recovery image inside the folder after unzipping
http://www.mediafire.com/?50baad8rykng2j0
Here is the recovery I used :
http://loadbalancing.modaco.com/download.php?file=r2-modaco-recovery-clockwork-touch-ville.img
But your running Mac so I don't know if the method I used will work for you because I'm on Windows

Doesnt work...
I have the bootloader (when i start in bootloader mode my phone says ***tampered*** and also ***unlocked***.
BUT
I've been 2 days trying to flash my recovery on my htc one s from my macbook, and after i use the command prompt to get to the folder where i have adb, fastboot, my recovery .img file,etc... this is what happens:
-----
MacBook-Pro-de-Alejandrolatform-tools alexjuanes$ fastboot flash recovery r2-modaco-recovery-clockwork-touch-ville.img
-bash: fastboot: command not found
MacBook-Pro-de-Alejandrolatform-tools alexjuanes$
-----
ive already updated all that i could in the sdk manager, or whatever its name is...
please some help?

batiste93 said:
Guys it works if you flash the recovery manually through the command prompt. I think there might be a bug or something in the toolkit because the manual way worked for me.
Here is what I did:
(I am not a programmer so I can't guarantee this will work for you. Worked for me, but try at your own risk)
-Copied the recovery image to the same folder as abd
-Plugged in the phone with USB debugging on
-Opened command prompt
-navigated to the folder with adb with "cd folder_location"
-typed: "adb kill-server", then "adb devices"to make sure the device was connected
-typed "adb reboot-bootloader" to boot into bootloader
-typed "fastboot flash recovery recovery_file_name.img"
-Select bootloader>recovery using the vol up and down and pwr button
and voila recovery
Hope this helps
Click to expand...
Click to collapse
This actually worked for me. I am rooted, and am now running a custom ROM.
Thanks so much for all your help!

Hey everyone
i seem to have made a very tiny bit of progress here since now i can type the commands and make it start, but only that... starting.
my command box is stuck in a "waiting for device" message that will start nothing, and my phone is just there, untouched.
i never thought flashing a recovery would give me this much of a long headache...
help anyone? how do i make my pc stop "waiting for device"?

Have you tried a different USB cable/port? I had a similar problem but moving to a different port worked.
Sent from my HTC VLE_U

I have the same problem i did everything as in the guide posted here http://forum.xda-developers.com/showthread.php?t=1583427
But when i flash recovery through fastboot ( fastboot flash recovery recoveryname.img) everything goes ok but when i want to boot into recovery i get stuck on the HTC screen.
Than i wanted to go to recovery trough fastboot ( fastboot boot recovery ) i get message cannot load recovery.
If you need more info for help i can provide you guys with the screenshots.
Thanks in advance Nikola.

[Guide] Returning to Stock and/or Unbricking your device Updated for Android 4.3!!!

First of all, I am in no way responsible for anything you do to your tablet period.
I have seen a couple of people asking how to return the Nexus 7 to stock after it has been unlocked, rooted and so on, so I figured I would write a quick guide as its super easy to do. Also, please make sure you make a backup of anything you don't want to lose. This is important.
Before you begin, please make sure you have ADB and Fastboot drivers installed and working.
1) Download the factory image for the Nexus 7 at https://dl.google.com/dl/android/aosp/nakasi-jwr66v-factory-d341d356.tgz
2) Extract the factory image into the same directory as your ADB and Fastboot executibles (e.g. "\android-sdk\platform-tools")
3) Plug in your device. If you are booted into Android, open a command prompt to your ADB and Fastboot directory, then type
Code:
adb reboot bootloader
If your device is powered off, press and hold both volume keys and the power button simultaneously. After holding all three buttons for a couple of seconds, your bootloader should launch. This should reboot you into the bootloader.
4) Type
Code:
fastboot flash bootloader bootloader-grouper-4.23.img
5) Next type
Code:
fastboot reboot-bootloader
6) Now type
Code:
fastboot -w update image-nakasi-jwr66v.zip
7) Optional: If you would like to relock your bootloader for warranty or security purpouses, make sure you are in your bootloader screen again and type
Code:
fastboot oem lock
8) If your tablet hasn't already rebooted automatically, type
Code:
fastboot reboot
That should do it. You should now be on stock Android 4.3 and ready to send in your tablet for warranty purposes if you so desire.
Additionally, here is an instructional video courtesy of XDA user SladeNoctis.
Also, thank you to XDA user Shano56 for the formatting help on this post.

chris.wueste said:
First of all, I am in no way responsible for anything you do to your tablet period.
I have seen a couple of people asking how to return the Nexus 7 to stock after it has been unlocked, rooted and so on, so I figured I would write a quick guide as its super easy to do. Also, please make sure you make a backup of anything you don't want to lose. This is important.
1) Make sure you have your ADB and Fastboot drivers installed and working.
2) Download the factory image for the Nexus 7 here
3) Unzip the factory image into the same directory as your Adb and Fastboot drivers.
4) Plug in your device. With the device on the home screen, type "ADB reboot bootloader" or if your device is off, press and hold both volume keys and press the power button. After holding all three buttons for a couple of seconds, your bootloader should launch.
5) This should reboot you into the bootloader. Now type "fastboot flash bootloader bootloader-grouper-3.34.img"
6) Next type "fastboot reboot-bootloader"
7) Now type "fastboot -w update image-nakasi-jrn84d.zip"
8) Optional: If you would like to relock your bootloader for warranty purposes, make sure you are in your bootloader screen again and type "fastboot oem lock"
9) I don't remember if the tablet automatically reboots at this point but if it doesn't just type "fastboot reboot"
That should do it. You should now be on stock Android 4.1 and ready to send in your tablet for warranty purposes.
Additionally, here is an instructional video courtesy of XDA user SladeNoctis.
Click to expand...
Click to collapse
You should change the title to [Guide] How to return to Stock / Unbrick your Nexus 7
Helps out those getting bootloops or softbricks from geting root access in certain ways or messing with the build.prop

SladeNoctis said:
You should change the title to [Guide] How to return to Stock / Unbrick your Nexus 7
Helps out those getting bootloops or softbricks from geting root access in certain ways or messing with the build.prop
Click to expand...
Click to collapse
Not a bad idea. Done and done. Also, I have proofread it several times over to ensure it is correct but would you mind making sure that all of the commands were typed correctly. My eyes are going crosseyed over here.

Nice guide man, I changed the format a little to make it easier to read. Use it if you want, won't be offended if you don't.
First of all, I am in no way responsible for anything you do to your tablet period.
I have seen a couple of people asking how to return the Nexus 7 to stock after it has been unlocked, rooted and so on, so I figured I would write a quick guide as its super easy to do. Also, please make sure you make a backup of anything you don't want to lose. This is important.
Before you begin, please make sure you have ADB and Fastboot drivers installed and working.
1) Download the factory image for the Nexus 7 here
2) Extract the factory image into the same directory as your ADB and Fastboot executibles (e.g. "\android-sdk\platform-tools")
3) Plug in your device. If you are booted into Android, open a command prompt to your ADB and Fastboot directory, then type
Code:
adb reboot bootloader
If your device is powered off, press and hold both volume keys and the power button simultaneously. After holding all three buttons for a couple of seconds, your bootloader should launch. This should reboot you into the bootloader.
4) Type
Code:
fastboot flash bootloader bootloader-grouper-3.34.img
5) Next type
Code:
fastboot reboot-bootloader
6) Now type
Code:
fastboot -w update image-nakasi-jrn84d.zip
7) Optional: If you would like to relock your bootloader for warranty or security purpouses, make sure you are in your bootloader screen again and type
Code:
fastboot oem lock
8) If your tablet hasn't already rebooted automatically, type
Code:
fastboot reboot
That should do it. You should now be on stock Android 4.1 and ready to send in your tablet for warranty purposes if you so desire.
Additionally, here is an instructional video courtesy of XDA user SladeNoctis.
If you want to use it and are too lazy to quote my post - http://pastie.org/pastes/4279753/text
The commands look good to me however I've never used "fastboot -w update" so can't say for that

Shano56 said:
Nice guide man, I changed the format a little to make it easier to read. Use it if you want, won't be offended if you don't.
First of all, I am in no way responsible for anything you do to your tablet period.
I have seen a couple of people asking how to return the Nexus 7 to stock after it has been unlocked, rooted and so on, so I figured I would write a quick guide as its super easy to do. Also, please make sure you make a backup of anything you don't want to lose. This is important.
Before you begin, please make sure you have ADB and Fastboot drivers installed and working.
1) Download the factory image for the Nexus 7 here
2) Extract the factory image into the same directory as your ADB and Fastboot executibles (e.g. "\android-sdk\platform-tools")
3) Plug in your device. If you are booted into Android, open a command prompt to your ADB and Fastboot directory, then type
Code:
adb reboot bootloader
If your device is powered off, press and hold both volume keys and the power button simultaneously. After holding all three buttons for a couple of seconds, your bootloader should launch. This should reboot you into the bootloader.
4) Type
Code:
fastboot flash bootloader bootloader-grouper-3.34.img
5) Next type
Code:
fastboot reboot-bootloader
6) Now type
Code:
fastboot -w update image-nakasi-jrn84d.zip
7) Optional: If you would like to relock your bootloader for warranty or security purpouses, make sure you are in your bootloader screen again and type
Code:
fastboot oem lock
8) If your tablet hasn't already rebooted automatically, type
Code:
fastboot reboot
That should do it. You should now be on stock Android 4.1 and ready to send in your tablet for warranty purposes if you so desire.
Additionally, here is an instructional video courtesy of XDA user SladeNoctis.
If you want to use it and are too lazy to quote my post - http://pastie.org/pastes/4279753/text
The commands look good to me however I've never used "fastboot -w update" so can't say for that
Click to expand...
Click to collapse
I updated the OP with your edits in it. Thanks for the help. I quoted you at the bottom

omg thank you so much. u saved my device

jarjar124 said:
omg thank you so much. u saved my device
Click to expand...
Click to collapse
Very welcome

Assuming you have a nandroid, can you boot into the bootloader, and simply ADB reboot recovery? Or does that bug prevent you from even doing that?

chrisjm00 said:
Assuming you have a nandroid, can you boot into the bootloader, and simply ADB reboot recovery? Or does that bug prevent you from even doing that?
Click to expand...
Click to collapse
In some cases due to the CWM not being official it cause bootloops by going to recovery in the bootloader.

SladeNoctis said:
In some cases due to the CWM not being official it cause bootloops by going to recovery in the bootloader.
Click to expand...
Click to collapse
There's a CWM official out?
Sent from my Nexus 7 using Tapatalk 2

chrisjm00 said:
Assuming you have a nandroid, can you boot into the bootloader, and simply ADB reboot recovery? Or does that bug prevent you from even doing that?
Click to expand...
Click to collapse
Assuming you have already flashed CWM, then the command would actually be fastboot reboot recovery. Not sure what but you speak of.

Shano56 said:
There's a CWM official out?
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Yes. There sure is. If you have Rom Manager installed it can be flashed directly from there.

I dont think you can really hard brick this device anyways

I'm sitting here at the command prompt with it on "erasing userdata"
It's been a couple minutes and I'm freakin' out! How long is it supposed to take? Everything flashed correctly, if I start the device now will there be an issue?
EDIT: Nevermind, just rebooted from the bootloader in the tablet and it booted fine. I'll get the OTA to 4.1.1 and that should probably fix any outstanding little issues.

hard brick?
I am stuck at the Google logo with a padlock and I'm pretty sure I have a hard bricked tablet. fastboot doesn't see the tablet or my computer for that mater through dmesg.
I've rebooted it countless times with vol + and vol - pushed and any combo thereof. It will only turn off completely when the battery dies because holding down the power key for 10 secs just reboots it back to the Google logo in about 5 seconds. I guess at this point I'm just waiting for Google to give me a RMA for a refund and I'll move on unless someone has any other ideas?

chris.wueste said:
If your device is powered off, press and hold both volume keys and the power button simultaneously. After holding all three buttons for a couple of seconds, your bootloader should launch. This should reboot you into the bootloader.
Click to expand...
Click to collapse
Pressing and holding the Volume down + Power buttons works just fine to launch the bootloader (at least for me).
No need to press (and force) the entire volume rocker button at all.

nugalonious said:
I am stuck at the Google logo with a padlock and I'm pretty sure I have a hard bricked tablet. fastboot doesn't see the tablet or my computer for that mater through dmesg.
I've rebooted it countless times with vol + and vol - pushed and any combo thereof. It will only turn off completely when the battery dies because holding down the power key for 10 secs just reboots it back to the Google logo in about 5 seconds. I guess at this point I'm just waiting for Google to give me a RMA for a refund and I'll move on unless someone has any other ideas?
Click to expand...
Click to collapse
Try and press and hold just the power button for 30 seconds or so to re-boot the tablet and you should be fine and it should boot up just fine. From fastboot you cannot go into cwm recovery because of a bug.

I'm trying to return to stock but get this message in the window from the ADB command after flashing the stock ROM:
​FAILED (remote: (FileWriteFailed))
Anyone seen that before or have any ideas to fix?
I tried wiping cache/factory reset from CMW but no joy.

Thanks. Worked for me. I did get worried when i got (data transfer failure (too many links)) error when trying to flash the bootloader.
Turns out it was the USB port. I switched the ports and all was well.
But I followed the commands in side the flash-all.sh file
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash bootloader bootloader-grouper-3.34.img
fastboot reboot-bootloader
fastboot -w update image-nakasi-jrn84d.zip
---------- Post added at 02:16 PM ---------- Previous post was at 02:13 PM ----------
yeahthatsme said:
I'm trying to return to stock but get this message in the window from the ADB command after flashing the stock ROM:
​FAILED (remote: (FileWriteFailed))
Anyone seen that before or have any ideas to fix?
I tried wiping cache/factory reset from CMW but no joy.
Click to expand...
Click to collapse
Try the commands i posted above and see what happens

Nuts. I tried it on many USB ports and did your commands one by one. Ended up in the same spot. It happens when writing 'userdata'...

[Q] How to downgrade to jb 10.6.1.14.8?

My infinity just passes its warranty and it is in newest stock firmware and not rooted. I think it is too slow and laggy and i would like to make some change by flashing new rom. As i know, the newest firmware .10 can not be unlocked and flash rom? So do i have to downgrade to .8 to make it work?

ericsundiu said:
My infinity just passes its warranty and it is in newest stock firmware and not rooted. I think it is too slow and laggy and i would like to make some change by flashing new rom. As i know, the newest firmware .10 can not be unlocked and flash rom? So do i have to downgrade to .8 to make it work?
Click to expand...
Click to collapse
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot and use that custom recovery to flash a custom rom.
If you use this method you bypass rooting the stock rom altogether. Every custom rom is rooted already.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

berndblb said:
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot and use that custom recovery to flash a custom rom.
If you use this method you bypass rooting the stock rom altogether. Every custom rom is rooted already.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
Click to expand...
Click to collapse
do you mean i can still unlock with the 10.6.1.14.10 firmware? using the official unlock tool?

ericsundiu said:
do you mean i can still unlock with the 10.6.1.14.10 firmware? using the official unlock tool?
Click to expand...
Click to collapse
Unlocking and rooting are two different things. There is no known root method at this time for the 10.6.1.14.10 firmware. The Unlock Tool should still work.
I don't think it's a question which firmware you have - sometimes it works like a charm and other users cannot unlock at all due to incorrect or incomplete S/N database on Asus servers. At least I have not heard anything that people have trouble unlocking after the last update.
Just download the latest version, v8 I think, install and run it. The worst that can happen is it fails.
Do yourself a huge favor and educate yourself thoroughly before you try to flash custom software to the tablet.
There is little risk in flashing a custom rom IF you do it right. But yesterday night I tried to help someone who did it wrong and hard bricked his tablet. Read 3 times, ask twice, flash once!
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

berndblb said:
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot
Click to expand...
Click to collapse
For flashing via adb and the staging partition, Android must be rooted. Fastboot works without root.

I did a clean wipe of my tablet and installed 10.6.1.14.10 onto my tablet.
I have unlocked the bootloader, but when booting up I then have the default recovery and rom supplied by Asus with no root.
I tried motochopper and debugfs method, and as described above neither work, the cmd prompt windows just record failures.
Read this forum regarding what is what (fastboot, root, unlocked etc.) and why you do them
http://forum.xda-developers.com/showthread.php?t=1833212
The way I gave root to the stock rom was by loading into fastboot mode and pushing a twrp image to my tablet off CHROMI rom site. I then used that to root the system. To be honest I did not need to root as I could have just then flashed the CHROMI custom rom which comes with SU anyway....
Get fastboot into a folder and also copy the TWRP recovery img inside the fastboot folder
Attach your device to the PC
Start fastboot mode by switching off your tablet then switching on in bootloader by holding down power on and volumn down
Connect tablet to PC (need approperiate drivers)
Open cmd prompt as admininstrator and goto directory with recovery image in the fastboot folder
Type the following commands:
fastboot -i 0x0B05 flash recovery recovery.img
fastboot -i 0x0B05 reboot (though I don't think i typed this if honest, struggling to remember)
Unplug tablet from the PC and reboot into recovery mode
If you got the image of twrp from CHROMI site which includes bootloader also, i think it includes SU, therefore just exit and close recovery and it should ask to install SU. Select yes
Reboot the device
Your device is now rooted, though think you need to run SU in the tablet to get it fully setup.
Sorry this is not 100% perfect, I will recall what I did tonight when at home in front of PC with files.

berndblb said:
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot and use that custom recovery to flash a custom rom.
If you use this method you bypass rooting the stock rom altogether. Every custom rom is rooted already.
Click to expand...
Click to collapse
Hello Berndblb (and everybody else ),
I'm quite a Noob around here as you can see and I've the same problem.
My TF700 has the build : US_epad-10.6.1.14.10 and the Android version : 4.2.1
I followed the instructions from this thread and now my tablet is unlocked.
I want to flash it to run under the last version of Cromi and I've read the instructions :
"- Step 1 - Coming from Stock Asus 10.6.1.x – INSTALLING TWRP 2.5 on 10.6.1.14.4/8"
Okay, so now I need to install TWRP, so I followed the guidelines : to do so, the easiest way is to install goomanager on the playstore.
Okay let's do this, I go to the playstore and I read the first line : This app is for ROOTED USERS ONLY!
Okay, so now before doing anything, I need to root my TF700, so I go back to this thread and I see that the easiest way to do it is by using motochopper but motochopper doesn't seem to work on 10.6.1.14.10.
As you said yourself previously before, I need to downgrade to 0.8 before using motochopper to root my tablet.
Okay let's do this, I search many threads and I've finally used this method :
1/ Download the previous firmware from asus website for my tablet (us version) and unzip it to get another .zip : US_epad-user-10.6.1.14.8.zip
2/ Put it into the root of my internal sd card
3/ Boot with "power + vol down" then after the splash screen put "vol up".
4/ Android start to work to add the downgrade version.... then I get the sick droid !
So, now I'm quite stuck here, I can't downgrade this way... any advices ?

M1ster1 said:
Hello Berndblb (and everybody else ),
I'm quite a Noob around here as you can see and I've the same problem.
My TF700 has the build : US_epad-10.6.1.14.10 and the Android version : 4.2.1
I followed the instructions from this thread and now my tablet is unlocked.
I want to flash it to run under the last version of Cromi and I've read the instructions :
"- Step 1 - Coming from Stock Asus 10.6.1.x – INSTALLING TWRP 2.5 on 10.6.1.14.4/8"
Okay, so now I need to install TWRP, so I followed the guidelines : to do so, the easiest way is to install goomanager on the playstore.
Okay let's do this, I go to the playstore and I read the first line : This app is for ROOTED USERS ONLY!
Okay, so now before doing anything, I need to root my TF700, so I go back to this thread and I see that the easiest way to do it is by using motochopper but motochopper doesn't seem to work on 10.6.1.14.10.
As you said yourself previously before, I need to downgrade to 0.8 before using motochopper to root my tablet.
Okay let's do this, I search many threads and I've finally used this method :
1/ Download the previous firmware from asus website for my tablet (us version) and unzip it to get another .zip : US_epad-user-10.6.1.14.8.zip
2/ Put it into the root of my internal sd card
3/ Boot with "power + vol down" then after the splash screen put "vol up".
4/ Android start to work to add the downgrade version.... then I get the sick droid !
So, now I'm quite stuck here, I can't downgrade this way... any advices ?
Click to expand...
Click to collapse
You can try to install from your system, not stock recovery. You need to boot your system normally and look in the lower right corner at your notification. It should notify you that their is an update for you. When you click on it, it will walk you through the update process. You need to make sure that you have only one zip file in your directory which is the Asus firmware that you want to update.
You can also use fastboot to install the TWRP. I don't think you need to root to install a custom recovery by using fastboot if you already unlocked your bootloader. IMO, I think fastboot is easier and faster than motochopper because of rooting process...

LetMeKnow said:
You can also use fastboot to install the TWRP. I don't think you need to root to install a custom recovery by using fastboot if you already unlocked your bootloader. IMO, I think fastboot is easier and faster than motochopper because of rooting process...
Click to expand...
Click to collapse
Thanks LetMeKnow !
It was the right way to do it (Berndblb advised this also here).
It worked and I've now TWRP installed ! :victory:
But it wasn't so easy, fortunately there's plenty of help around here
I'll write here quickly how I did it, it could help someone, who knows, sharing doesn't hurt, even if I'm sure there's plenty of different methods to do it.
I found some help in this guide because the explanation under "Download - Recovery Image / Fastboot Method:" from the TWRP page is a bit rough for a beginner like me.
First I need to mention that I've Windows XP on my computer.
As you can read here there's 3 different ways to install TWRP on the TF700, the first one is the easiest one, but you need to be root, if you're unrooted like me and you want to skip rooting, let's install TWRP via fastboot.
Requirements :
- Bootloader must be unlocked. Very easy following this thread.
- ADB and Fastboot must be installed on your computer. You can follow this guide, this way you'll install them from the latest version of Android SDK and avoid any trouble.
- You should have the USB driver for your TF700 installed on your computer. I've read multiple times that that the official drivers could create some trouble, and indeed it happened to me. So you can give a try, and if this doesn't work, let's go for the Universal Naked Driver.
- Download the last version of TWRP (the newest .blob file) from here. Rename it to twrp.blob and place it under C:/Android (or C:/Android-adb, depending how you've rename your folder containing adb and fastboot.exe).
Fastboot method :
- Before starting, you want to be sure that your computer recognize well your tablet, otherwise, you'll follow a tutoriel like me, enter the final command, press enter and watch... nothing ! just a prompt command blinking in front of you, because if the script don't find any device, it will just write nothing.
To be sure of that, turn on your TF700, Plug it to your computer via a USB cable, then enable USB debugging (Tap the Build Number 7 times under Settings, About Tablet and it will show up under Dev Settings).
Now, if you're under WinXP like me, it may be possible that the pc doesn't recognize well your tablet, and you'll probably have to play with your device manager (to go into your device manager right-click on My Computer and click Properties, In the System Properties window click the Hardware tab, In the Hardware tab click the Device Manager button then look for your device, click on it, uninstall drivers, then reinstall the naked driver mentioned before for example). You may find some help here or around here in the forum.
Once you think your tablet with USB debugging enabled is well recognized by your computer, try to open a command prompt (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box) and type “adb devices” (without quotes). The daemon will start up, and all connected devices will be listed. If your device shows up, let's continue to next step, otherwise, you should continue to play with uninstalling drivers, reboot, installing others drivers...
- Turn off & Unplug your device.
- Enter fastboot mode : Keep pressing the Power button while holding the Volume down button till the screen responds then
1) If you have an old bootloader select USB icon, press Volume up button.
2) If you have the new 4.2.1 boot loader it automatically boot into usb mode, it should be written in the upper left corner something like this :
The Device is UnLocked.
key driver not found...booting os
Android cardhu-user bootloader <1.00 e> released by "ww_epad-10.6.1.14-20130329" A03
Starting Fastboot USB download Protocol
I didn't know that and I found some answer here and here.
- Plug the TF700 to your computer via a USB cable. (and make sure no other android devices is connected to the computer)
- Open a command prompt in your computer (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box).
Just to be sure (one more time) that your device is well recognized by the computer type “fastboot devices” (without quotes).
You should see at least one line with some numbers written.
Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).
Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob
After the process finishes, You can unplug and reboot your tablet.
- Normally the TWRP recovery is now installed on your device !
To check that enter recovery mode : Boot with "power + vol down" then after the splash screen put "vol up". You should see that image, cool right ?
I don't take any credit for this quick explanation because I took all the informations from this forum (and from different other websites) and gathered them together for my own case, but I think this may help others.
A big Thanks to all the guys here who take the time to write, explain and help, that's great, keep it up the good work :good:

M1ster1 said:
Thanks LetMeKnow !
It was the right way to do it (Berndblb advised this also here).
It worked and I've now TWRP installed ! :victory:
But it wasn't so easy, fortunately there's plenty of help around here
I'll write here quickly how I did it, it could help someone, who knows, sharing doesn't hurt, even if I'm sure there's plenty of different methods to do it.
I found some help in this guide because the explanation under "Download - Recovery Image / Fastboot Method:" from the TWRP page is a bit rough for a beginner like me.
First I need to mention that I've Windows XP on my computer.
As you can read here there's 3 different ways to install TWRP on the TF700, the first one is the easiest one, but you need to be root, if you're unrooted like me and you want to skip rooting, let's install TWRP via fastboot.
Requirements :
- Bootloader must be unlocked. Very easy following this thread.
- ADB and Fastboot must be installed on your computer. You can follow this guide, this way you'll install them from the latest version of Android SDK and avoid any trouble.
- You should have the USB driver for your TF700 installed on your computer. I've read multiple times that that the official drivers could create some trouble, and indeed it happened to me. So you can give a try, and if this doesn't work, let's go for the Universal Naked Driver.
- Download the last version of TWRP (the newest .blob file) from here. Rename it to twrp.blob and place it under C:/Android (or C:/Android-adb, depending how you've rename your folder containing adb and fastboot.exe).
Fastboot method :
- Before starting, you want to be sure that your computer recognize well your tablet, otherwise, you'll follow a tutoriel like me, enter the final command, press enter and watch... nothing ! just a prompt command blinking in front of you, because if the script don't find any device, it will just write nothing.
To be sure of that, turn on your TF700, Plug it to your computer via a USB cable, then enable USB debugging (Tap the Build Number 7 times under Settings, About Tablet and it will show up under Dev Settings).
Now, if you're under WinXP like me, it may be possible that the pc doesn't recognize well your tablet, and you'll probably have to play with your device manager (right click on your device, uninstall drivers, then reinstall the naked driver mentioned before for example). You may find some help here or around here in the forum.
Once you think your tablet with USB debugging enabled is well recognized by your computer, try to open a command prompt (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box) and type “adb devices” (without quotes). The daemon will start up, and all connected devices will be listed. If your device shows up, let's continue to next step, otherwise, you should continue to play with uninstalling drivers, reboot, installing others drivers...
- Turn off your device.
- Enter fastboot mode : Keep pressing the Power button while holding the Volume down button till the screen responds then
1) If you have an old bootloader select USB icon, press Volume up button.
2) If you have the new 4.2.1 boot loader it automatically boot into usb mode, it should be written in the upper left corner something like this :
The Device is UnLocked.
key driver not found...booting os
Android cardhu-user bootloader <1.00 e> released by "ww_epad-10.6.1.14-20130329" A03
Starting Fastboot USB download Protocol
I didn't know that and I found some answer here and here.
- Plug the TF700 to your computer via a USB cable. (and make sure no other android devices is connected to the computer)
- Open a command prompt in your computer (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box).
Just to be sure (one more time) that your device is well recognized by the computer type “fastboot devices” (without quotes).
You should see at least one line with some numbers written.
Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).
Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob
After the process finishes, You can unplug and reboot your phone.
- Normally the TWRP recovery is now installed on your device !
To check that enter recovery mode : Boot with "power + vol down" then after the splash screen put "vol up". You should see that image, cool right ?
I don't take any credit for this quick explanation because I took all the informations from this forum (and from different other websites) and gathered them together for my own case, but I think this may help others.
A big Thanks to all the guys here who take the time to write, explain and help, that's great, keep it up the good work :good:
Click to expand...
Click to collapse
Good job! Congrats!
And thank you for putting this guide together. That's what I call sharing! :victory:
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

M1ster1 said:
Thanks LetMeKnow !
It was the right way to do it (Berndblb advised this also here).
It worked and I've now TWRP installed ! :victory:
But it wasn't so easy, fortunately there's plenty of help around here
I'll write here quickly how I did it, it could help someone, who knows, sharing doesn't hurt, even if I'm sure there's plenty of different methods to do it.
I found some help in this guide because the explanation under "Download - Recovery Image / Fastboot Method:" from the TWRP page is a bit rough for a beginner like me.
First I need to mention that I've Windows XP on my computer.
As you can read here there's 3 different ways to install TWRP on the TF700, the first one is the easiest one, but you need to be root, if you're unrooted like me and you want to skip rooting, let's install TWRP via fastboot.
Requirements :
- Bootloader must be unlocked. Very easy following this thread.
- ADB and Fastboot must be installed on your computer. You can follow this guide, this way you'll install them from the latest version of Android SDK and avoid any trouble.
- You should have the USB driver for your TF700 installed on your computer. I've read multiple times that that the official drivers could create some trouble, and indeed it happened to me. So you can give a try, and if this doesn't work, let's go for the Universal Naked Driver.
- Download the last version of TWRP (the newest .blob file) from here. Rename it to twrp.blob and place it under C:/Android (or C:/Android-adb, depending how you've rename your folder containing adb and fastboot.exe).
Fastboot method :
- Before starting, you want to be sure that your computer recognize well your tablet, otherwise, you'll follow a tutoriel like me, enter the final command, press enter and watch... nothing ! just a prompt command blinking in front of you, because if the script don't find any device, it will just write nothing.
To be sure of that, turn on your TF700, Plug it to your computer via a USB cable, then enable USB debugging (Tap the Build Number 7 times under Settings, About Tablet and it will show up under Dev Settings).
Now, if you're under WinXP like me, it may be possible that the pc doesn't recognize well your tablet, and you'll probably have to play with your device manager (to go into your device manager right-click on My Computer and click Properties, In the System Properties window click the Hardware tab, In the Hardware tab click the Device Manager button then look for your device, click on it, uninstall drivers, then reinstall the naked driver mentioned before for example). You may find some help here or around here in the forum.
Once you think your tablet with USB debugging enabled is well recognized by your computer, try to open a command prompt (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box) and type “adb devices” (without quotes). The daemon will start up, and all connected devices will be listed. If your device shows up, let's continue to next step, otherwise, you should continue to play with uninstalling drivers, reboot, installing others drivers...
- Turn off & Unplug your device.
- Enter fastboot mode : Keep pressing the Power button while holding the Volume down button till the screen responds then
1) If you have an old bootloader select USB icon, press Volume up button.
2) If you have the new 4.2.1 boot loader it automatically boot into usb mode, it should be written in the upper left corner something like this :
The Device is UnLocked.
key driver not found...booting os
Android cardhu-user bootloader <1.00 e> released by "ww_epad-10.6.1.14-20130329" A03
Starting Fastboot USB download Protocol
I didn't know that and I found some answer here and here.
- Plug the TF700 to your computer via a USB cable. (and make sure no other android devices is connected to the computer)
- Open a command prompt in your computer (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box).
Just to be sure (one more time) that your device is well recognized by the computer type “fastboot devices” (without quotes).
You should see at least one line with some numbers written.
Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).
Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob
After the process finishes, You can unplug and reboot your tablet.
- Normally the TWRP recovery is now installed on your device !
To check that enter recovery mode : Boot with "power + vol down" then after the splash screen put "vol up". You should see that image, cool right ?
I don't take any credit for this quick explanation because I took all the informations from this forum (and from different other websites) and gathered them together for my own case, but I think this may help others.
A big Thanks to all the guys here who take the time to write, explain and help, that's great, keep it up the good work :good:
Click to expand...
Click to collapse
It is a nice written How to do list, good job... :good:
You can add these command for fastboot to your list instead of using the power button and volume down..
> fastboot reboot-bootloader # Exit fastboot and reboot into bootloader.
> fastboot reboot # Exit fastboot and reboot to your system
Good job.. :good:

FAILED (InvalidSize)
I am attempting to install a ROM on my Transformer Infinity as it pretty much sucks these days but am a complete NOOB. Have never attempted this with any of my phones or tablets, but figure I would try since these directions are so detailed. After following most the steps you have listed, I get the error below in the command prompt. Can someone please help, I tried searching XDA and Google to no avail. If possible please be as basic and speak in layman's terms b/c all this technical jargon goes right over my head. Thank you in advance!!!
Step followed:
- Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).
Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob
After the process finishes, You can unplug and reboot your tablet.
Error:
c:\Android-ADB>fastboot -i 0x0B05 flash recovery twrp.blop
sending 'recovery' <8218 KB>...
OKAY [ 2.938s]
writing 'recovery'...
FAILED <remote: <InvalidSize>>
finished. total time: 6.633s

epps720 said:
Error:
c:\Android-ADB>fastboot -i 0x0B05 flash recovery twrp.blop
sending 'recovery' <8218 KB>...
OKAY [ 2.938s]
writing 'recovery'...
FAILED <remote: <InvalidSize>>
finished. total time: 6.633s
Click to expand...
Click to collapse
Don't know if you cut and paste the error message or typed it up. But what I notice is that you named the recovery file .blop
It should be .blob
Another step to avoid simple errors: Place the recovery.blob file into the same directory with your fastboot file.
Right click in that directory to open a command prompt and then execute the command
fastboot -i 0x0B05 flash reccovery twrp.blob
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

berndblb said:
Don't know if you cut and paste the error message or typed it up. But what I notice is that you named the recovery file .blop
It should be .blob
Another step to avoid simple errors: Place the recovery.blob file into the same directory with your fastboot file.
Right click in that directory to open a command prompt and then execute the command
fastboot -i 0x0B05 flash reccovery twrp.blob
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
Click to expand...
Click to collapse
Thanks for the help but I'm still getting the same error. I did move the recovery file to the same folder and open the command prompt right from that folder but no luck. Any other ideas?
Thanks again.

epps720 said:
Thanks for the help but I'm still getting the same error. I did move the recovery file to the same folder and open the command prompt right from that folder but no luck. Any other ideas?
Thanks again.
Click to expand...
Click to collapse
Actually yes.
Just read in another thread about someone having the same problem as you, getting the incorrect file size error.
Download the TWRP 2.5 blob and try it with that file. I have no idea why, but TWRP 2.6 may cause this error.
At least that bloke got the recovery installed that way. Once you have TWRP, it's easy to upgrade to the latest version.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

berndblb said:
I have no idea why, but TWRP 2.6 may cause this error.
Click to expand...
Click to collapse
The blob for TWRP 2.6.3 is bigger than the recovery partition. 2.6.1 should work.

berndblb said:
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot and use that custom recovery to flash a custom rom.
If you use this method you bypass rooting the stock rom altogether. Every custom rom is rooted already.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
Click to expand...
Click to collapse
Ive had the same question as the OP, i also have a .10 version, i have a US sku, and i downlaoded said associating item but when I went but when i go to either do it with sd, or intewrnal sd, or how ever. through manual or through android, either method both resulted in error when trying to downgrade, i dont know if its because its a downgrade or what.
Ive some linux experience over the years, and have rooted and run custom roms in the past. im trying to achieve the same as the OP, fix my lag, and more options and tweaks.
I have the .zip of the rom i want whitch i found I liked the xcromi rom, so I downloaded it. so, i can put that in and name it what and how do i do the update than through the volume down + pwr combo into that menu? (not sure what its called) but i can't do sideloads because i can't havbe the ultity to sideload without rooting and i can't root with .10, so i have been trying to get past this single step all night and this morning now.

@M1ster1
Thanks for posting this guide. It doesn't do a perfect job however on the TF700t running Android build 10.6.1.14.10. Tried to use the "fix permissions" option in ROM Manager but failed due to insufficient permissions. I installed CWM Superuser and cleaned up the version of SuperSU (prefer Superuser anyhow)... updated the binaries and still no love when trying to correct the permissions, despite all tests showing the device fully rooted.
After a day of pulling my hair out I finally came across vRoot and after even longer found a guide in English. Ran that, again swapped out the Superuser that went with vRoot and again reinstalled Superuser. Used Ti to install as system app. After reboot ROM Manager was finally able to correct permissions and all is golden again.

Hi ,
My Transformer has 10.6.1.14.10 and I am trying to install TWRP thru fastboot as per "M1ster" instructions.
these are the results I see from my command prompt.
C:\Users\Ken>fastboot devices
015d2bbce7041e07 fastboot
C:\Users\Ken>cd c:\Android-adb
c:\Android-adb>fastboot -i 0x0B05 flash recovery twrp.blob
sending 'recovery' (4 KB)...
OKAY [ 0.066s]
writing 'recovery'...
OKAY [ 3.374s]
finished. total time: 3.441s
c:\Android-adb>
after I reboot and select RDK , i get the sick droid error,
I feel like I have missed something, hopefully somebody can point me in the right direction
Thanks

helihaole said:
c:\Android-adb>fastboot -i 0x0B05 flash recovery twrp.blob
sending 'recovery' (4 KB)...
Click to expand...
Click to collapse
Your "twrp.blob" apparently doesn't contain a recovery - it should be around 6 to 8 MB.

[HOW-TO] Root BNTV450 Nook 7 (ST16C7BNN) using Magisk.

Root your "Barns & Noble Nook 7" BNTV450 using Magisk's Patch Boot Image File option.
BE CAREFUL!
There are always risks involved when you start messing around with a device.
If something goes wrong, you may end up with a non-working "bricked" device.
This is especially true when you start flashing partitions. (In this case boot.)
Disclaimer
I am not responsible for your non-working "bricked" devices.
I have a few of my own.
Requirements
Barns & Noble Nook 7" BNTV450
A computer with working adb and fastboot
USB cable
WiFi connection
Magisk Manager (Link below)
Stock boot image (Link below)
Tested on:
BNTV450-v1.0.2-20161230 Security patch October 5, 2016
BNTV450-v2.0.4-20170927 Security patch August 5, 2017
BNTV450-v2.0.5-20170110 Security patch November 5, 2017 ota update
macOS 10.13.x
Windows 7 Pro
Steps
Unlock bootloader
Boot Magisk patched boot image
Pull stock boot and recovery images from device
Use Magisk to patch pulled stock image
Test and flash new patched boot image
Notes:
Google updates were needed to get everything working correctly.
PlayServices and WebView
Mac users. As with some other devices, I had to unplug and plugin the USB cable between some of the fastboot commands.
fastboot flash boot patched_boot.img and fastboot boot bntv4-recovery.img
Magisk:
There have been a lot of changes in Magisk since I originally used it to root.
Way too many to mention so, just the basics that apply to this device.
Newer versions of Magisk use the Download directory instead of creating and using the MagiskManager directory.
Some apps search for this directory and used it to determine if the device is rooted.
If you previously used Magisk to root and have a MagiskManager directory, you will want to delete it.
To update Magisk Manager.
Use the update option, it will download and install the newest version.
To update Magisk.
The safest way is to patch the boot image again. Test and flash.
The Direct Install option works but, may lead to a non-desirable outcome.
To uninstall Magisk.
Test boot your original boot image to make sure it works.
Check with Magisk Manager, it should say Magisk not installed.
If so, then flash your stock boot image back using fastboot.
If your stock boot image will not boot, then you are stuck with Magisk patched boot images.
Hardware Keys:
Power and Volume Up = Recovery Mode
Power and Volume Down = Factory Mode
It will show on the bottom Left (Sideways on the top left) Detecting boot mode. With bootloader unlocked it flashes this message very fast so you might not see it.
I still can not produce the same results continuously across mine. The newer ones, that came with v2.0.5 seem to work but, the older ones still it's a 50 % chance if I can get it to work. The bricked ones, do not seem to register the key combo on boot.
Files Needed
Magisk
xda Magisk forum. Link
Magisk and MagiskManager Official github downloads. Link
Boot Images
Magisk patched boot image downloads. Link
Stock recovery and boot image downloads. Link
Credits and Thank You:
@topjohnwu - The creator and brilliant mind behind Magisk.
Everyone who has helped me learn through the years.
Last edited 23.Sep.2018

"QUICK" Guide - BNTV450 Nook 7
Unlock Bootloader
THIS WILL VOID YOUR WARRANTY.
Unlocking the bootloader WILL wipe and Factory Reset your device. Make sure to copy, backup and logout of everything before you begin.
Note: adb and fastboot need to be installed and working.
On device
Go to Settings - About and tap on the build number seven times to enable Developer options.
Go to Settings - Developer options and Enable OEM unlocking and USB debugging
Connect to computer and Allow USB debugging?
On computer
Code:
adb reboot bootloader
Wait for device to boot into fastboot mode then.
Code:
fastboot flashing unlock
On device
Follow the prompts on the device.
Unlock bootloader?
If you unlock the bootloader,you will be able to install custom operating system software on this phone.
A custom OS is not subject to the same testing as the original OS, and can cause your phone and installed applications to stop working properly.
To prevent unauthorized access to your personal data,unlocking the bootloader will also delete all personal data from your phone(a "factory data reset").
Press the Volume UP/Down buttons to select Yes or No.
Yes (Volume UP):Unlocking(may void warranty).
No (Volume Down): Do not unlock bootloader.
After it returns to fastboot mode, use the power button to turn off, unplug it from computer and then turn on.
It will reboot a few times, including an Erasing... screen.
Once device reboots, run through the initial setup.
Note: Sometimes mine would get stuck on the nook .... animation screen. Give it a few minutes (I wait at least 5 minuets) then power off and power back on.
Note: You will now have the annoying boot delay and "Orange State" message.
Orange State
Your device has been unlocked and can't be trusted
Your device will boot in 5 seconds

"QUICK" Guide - BNTV450 Nook 7
Root using Magisk.
MagiskManager 6.0.0 Download
Magisk 17.2 patched v2.0.5 Download
Using Magisk Manager and the provided Magisk patched boot image.
Note: When booting an image from "fastboot", you should not see the initial "orange boot" screen.
Make sure to grant permission if and when prompted on device.
Some of the adb and fastboot commands may require input on the device.
On device
Go to Settings - About and tap on the build number seven times to enable Developer options.
Go to Settings - Developer options and Enable USB debugging
Connect to computer and Allow USB debugging?
On computer
Code:
adb reboot bootloader
Wait for device to boot into fastboot mode then.
Code:
fastboot boot m172_v205_boot.img
Wait for device to boot then.
Reminder. Make sure to grant permission if and when prompted on device.
Code:
adb install -r MagiskManager-v6.0.0.apk
adb shell su -c "dd if=/dev/block/mmcblk0p7 of=/sdcard/bntv4-boot.img"
adb shell su -c "dd if=/dev/block/mmcblk0p8 of=/sdcard/bntv4-recovery.img"
adb pull /sdcard/bntv4-boot.img
adb pull /sdcard/bntv4-recovery.img
Test the images you just made.
Code:
adb reboot bootloader
Wait for device to boot into fastboot mode then.
Code:
fastboot boot bntv4-recovery.img
Wait for device to boot into recovery mode then.
On device
In Stock Recovery use the volume down key to highlight Reboot to bootloader and press the power button.
Wait for device to boot into fastboot mode then.
On computer
Code:
fastboot boot bntv4-boot.img
Wait for device to boot then.
On device:
If you haven't setup WiFi, do so now.
Open MagiskManager
Tap on Install
Select Install
Select Patch Boot Image File
Tap on Internal storage
- Note: If Internal storage is not displayed. Tap on the 3-dot menu (upper right corner) and select Show SD card.
Scroll down and tap on bntv4-boot.img
When Magisk is done patching the image file, select CLOSE
You can close MagiskManager as well.
Copy and test your Magisk patched boot image.
On computer
Code:
adb pull /sdcard/download/patched_boot.img
adb reboot bootloader
Wait for device to boot into fastboot mode then.
Code:
fastboot boot patched_boot.img
On device
Open MagiskManager
Note: You should see that Magisk is installed and active.
To do a quick check.
On Computer
Code:
adb shell
[email protected]:/ $su
[email protected]:/ #exit
[email protected]:/ $exit
If it worked, and you are ready to say goodbye to stock Non-root.
Code:
adb reboot bootloader
fastboot flash boot patched_boot.img
fastboot boot bntv4-recovery.img
Once it's booted into Recovery, unplug the device.
On device
In Stock Recovery use the volume down key to highlight Wipe cache partition and press the power button.
-- Wiping /cache...
Formatting /cache...
Cache wipe complete.
Then with Reboot system now highlighted press the power button.
You are now rooted and running Magisk.
Last edited 23.Sep.2018
Links to my shell logs.
Unlock bootloader. Pastbin
Root. Pastbin

volume button does not react
Hi
unlocking does not work
As mentioned in the other discussion, the volume up button does not seem to react and so the unlocking does not work. Also one user suggested using the reset button after pressing the volume up button for the unlock; that also does not work for me
Do u have any other suggestions to unlock ?;

arrmusic said:
Hi
unlocking does not work
As mentioned in the other discussion, the volume up button does not seem to react and so the unlocking does not work. Also one user suggested using the reset button after pressing the volume up button for the unlock; that also does not work for me
Do u have any other suggestions to unlock ?;
Click to expand...
Click to collapse
I never ran into this problem. So short answer - No.
Can you point me to that other discussion?
What do you get if you run fastboot oem lks
fastboot oem unlock is supported on this device. You could give that command a try and see if there is a difference.
Not sure what you have tried.
I would start with "Factory Reset" in stock recovery. Skip through the initial setup and try again.
Note: Developer option menu has a toggle at the top, make sure it is turned On.
Sent from my BNTV450 using XDA Labs

Volume up button not recognised while fastboot unlock
Hi
Here is the discussion thread that I was referring to where people are stuck with unresponsive volume up button for fastboot unlock
https://forum.xda-developers.com/nook-7/help/nook-rootable-t3510289
I didn't do the factory reset. So maybe I will do that and see if it works.

unlock not working
Hi
Just to further update you on your reply; i did a factory reset and tried to unlock the bootloader but i get to the same problem; the volume button does not respond; so stuck with the message 'press the volume up button to unlock the bootloader'
I did the fastboot oem lks and that commands executes well and it gives me a OK output.
Cheers & New year greetings!

Any update on the unlock issue
Hi
Is there any update on the unlock issue i reported some time back? My last update on this was executing the command => 'I did the fastboot oem lks and that commands executes well and it gives me OK output.'
not sure if my last update was interpreted in the right way; it does nothing when i type fastboot oem lks except saying it is OK (which i suppose is the expected output of fastboot oem lks). So i do not know how to get around the volume keys not being recognised to go further in unlocking
I still can not use the volume keys for the unlock as it does not seem to react. just stuck a bit on this

@arrmusic I guessed it it looked more like this.
Code:
fastboot oem lks
...
(bootloader) lks = 1
OKAY [ 0.000s]
finished. total time: 0.000s
lks = 0 would be unlocked.
I am looking for a way to un-brick these. I think that may be the best way to correct the button problem also.
What os version are you running? (BNTV450-vx.x.x-20xxxxx)
What do you get when you run fastboot flashing get_unlock_ability ?
Tested a few things tonight.
I was NOT able to re-lock the bootloader on either of my rooted devices.(BNTV450-v2.0.4)
Found some more inconsistencies with power and volume key boot combinations. (Among other things.)
"FAILED (remote: not support on security)" apparently is not just for unlocked devices.
Sent from my BNTV450 using XDA Labs

not able to unlock yet
Hi
Many thanks for your reply.
I seem to have the software version v1.0.2;
I tried to find by googling v2.0.4 but i am not able to find that security update anywhere to download; do you have the v2.0.4 file? can i have it somehow?
I ran the commands u had mentioned in your previous reply.
fastboot flashing get_unlock_ability
...
(bootloader) unlock_ability = 16777216
OKAY [ 0.012s]
finished. total time: 0.012s
fastboot oem lks
...
(bootloader) lks = 1
OKAY [ 0.004s]
finished. total time: 0.008s

What is the origin of the boot.img?
What is the origin of the boot.img? I'd rather not just flash something without knowing where its come from.

74178951237895321 said:
What is the origin of the boot.img? I'd rather not just flash something without knowing where its come from.
Click to expand...
Click to collapse
v2.0.3 boot came from a supposed "N" rom for this device and was the first boot image I was able to make bootable. It was still API 23 "M" by the way.
I would have to find and unpack the original file to see what I edited to make it bootable.
All others are "dd" copies from my own device(s).
I am working on updating the OP and the "Quick Guide"
Boot Images
Download Magisk 15.3 patched v2.0.5 (Preferred and current boot image.)
Sent from my ford using XDA Labs

Scatter file for Mediatek MT8163, opening the tablet
Can you post the scatter file for the Mediatek MT8163?
I've been trying to make my own image dumps for the Nook 7, but have run into an issue where the device won't stay in a readable mode for SP Flash Tools long enough while the battery is still connected. So, the solution for most phones is to disconnect the battery and have it powered over USB only so that it won't go past the preloader and into the charging mode.
But I can't get the darned thing open! My phone has a similar style housing and I had to use a suction cup on the glass while prying at the edges to gain access. But for the Nook 7 its just not working.
Edit: This started while trying to soft load TWRP to make the image dumps. When I do
Code:
fastboot boot twrp.img
It tells me that the kernel address lies outside of memory. Its possible to supply an address to load it at with the fastboot command which you are supposed to learn from the scatter file. I found what I thought was a valid MT8163 scatter file but using the address found within did not fix the issue.
I forgot you mentioned that you didn't pull the original image from your device yourself. I've been trying to root this without relying on images from others. Your latest guide to pulling and modifying your own boot.img is a decent enough middle ground for me to use. Thanks.

@74178951237895321
Sent from my Nexus 7 (2013) using XDA Labs

I was able to get a successful root by following the steps in this thread in combination with those mentioned in this one. ipdev, just to satisfy my curiosity, where did you find this "N rom" image?

ipdev said:
So we hit a snag using Magisk 15.4+ to patch a stock boot image on this device.
Click to expand...
Click to collapse
So, I was dumb and went through with updating Magisk without checking this thread first, and now my tablet's stuck in a bootloop that I can't seem to get out of. @ipdev, do you have any ideas on how this happened/how to get out of it? The tablet can't get past the "Orange state your device has been unlocked etc. etc." screen, and I can't get it to boot into recovery either (using Power+Volume Down, is the combination something else on this tablet?). fastboot won't discover it either, probably because it reboots within seconds and never gets to a point where it could be recognized. I'm thinking of letting it bleed out until its battery dies (unfortunately, the battery is soldered and glued in, so I can't just disconnect it), and checking on it in the morning to see if it will be cooperative enough to let me flash the modified Magisk image.

@saagarjha
I have a few in the same condition. As you noticed, the battery is soldered in so the best you can do is disconnect the screen. (Connector to the right of battery.)
One of these days, I was going to try sp flashtools to see if I could recover one of mine. (I'm not sure if it works with these.)
Sent from my Nexus 5 using XDA Labs

I let the tablet run out of battery and then plugged it back in again and it immediately got stuck in the same bootloop, so it looks like it's actually bricked rather than just pretending. I think SP Flash Tools is the way to go at this point; we'd have to find a functioning preloader driver and scatter file to do that, however. It might be possible to simulate disconnecting the battery by shorting the battery's leads, but I'm not sure if this would work (or is even safe to do).

I was having trouble with unlocking the boot loader on my v1 launch version of this Nook. Recently I dropped it and got a new one via the replacement plan - this one was marked 'v2', came with a 2.x firmware that I wasn't able to even get on my launch Nook 7.
Anyway, this one unlocked without any problems. Thought this might be helpful to anybody having trouble unlocking the bootloader. Consider the revision of the Nook you have. Maybe the solution here is flashing the v2 firmwares to the v1? Hard to say.

unable to unlock
So I did "adb reboot bootloader" and the tablet rebooted and says "=> FASTBOOT mode..." on the screen.
I then did "fastboot flashing unlock" on the computer. Nothing happened on the device and my computer says "< waiting for device >". Could anyone please let me know what I did wrong? Thank you very much.