Database Info

Unroot & Lock for XOOM Wi-Fi on ICS

Can someone please point me to a guide to lock and unroot my MZ604 running ilm77?
thanks

terrapin69 said:
Can someone please point me to a guide to lock and unroot my MZ604 running ilm77?
thanks
Click to expand...
Click to collapse
Edit - see Post 4

Mjamocha said:
http://http://forum.xda-developers.com/showthread.php?t=1242241
-----------------------------------------------------------------------------------------------------------
This is assuming that you have Android SDK installed on you PC. - Tutorial found here:
http://www.xda-developers.com/android/adb-easy-tutorial/
1. Downloading the rooting-update zip file. Download the zip file from here - http://goo.gl/Om9aP
Now place this on your external sdcard. - Sorry this is a requirement at the moment, like I said this is a bit rushed.
2. Flashing recovery
1. Download this Recovery image. http://bit.ly/iLRAIV
(place this image in you SDK PlatformTools Folder, or which ever folder that contains your adb.exe)
2. If your device is locked, now is a good time to unlock it.
Code:
adb reboot bootloader
fastboot oem unlock
fastboot reboot
3. Flash recovery Code:
adb reboot bootloader
fastboot flash recovery recovery-Tiamat-R4c-100611-1150-cwm.img
Once you have verification on your device that this has been flashed, reboot your device by holding volume up + power. Then 3 seconds after you see the Motorola logo, hit volume down. You should now see "Android Recovery" in the top left corner. Hit volume up to boot into recovery.
4. Flashing the Xoom-Universal-Root.zip file.
If you're in clockwork mod recovery you can continue (This recovery image will say it is clockwork mod) . If you're not looking at clockwork mod, then you need to repeat step 3 again.
In cwm, go into "install zip from sdcard" -> "Choose zip from sdcard", then select the Xoom-Universal-Root.zip file you downloaded.
Note: use the volume buttons to navigate and the power button to select
Reboot your device and then welcome to your rooted device!
As Always, If this was helpful-hit the Thanks!
Click to expand...
Click to collapse
Am I missing something or does this show you how to root the device when the question was how to unroot and lock? I'm looking to do the same thing.........

No you are not missing anything-I posted the wrong instuctions! LOL
Here you go -
[Guide] Re-lock and Un-root WI-FI Xoom Build HWI69
Video in case you want a visual of the commands used -
http://www.youtube.com/watch?v=pT8NF-_nLCo
--------------------------------------------------------------------------------
This is for Re-locking and Un-Rooting the US WIFI Xoom BUILD HWI69 ONLY
This is for use only on the Wifi-Only Xoom HWI69 build. Check your build number before you install!!!
Please note the following information does contain official Motorola images from a non Motorola source. The information in this thread has been tested, however I can not confirm that it will work for every situation. In no way will I or xda-developers.com be held accountable for any damage resulting from using this information. Use the following with extreme caution.
1. Download the necessary files from here:
http://www.android.net/forum/downloa...?do=file&id=39
2. Unzip the files to the directory you will be running ADB from.
3. Enter the following commands into the command prompt
adb reboot bootloader
Xoom will then reboot into bootloader screen
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash userdata userdata.img
fastboot erase cache
fastboot oem lock
After the final reboot you should be back to stock, Locked and Un-Rooted.

[NVIDIA K1] How can I flash to stock Nvidia ROM?

I currently have custom TWRP recovery.
I've looked around, and the only tutorial I could find for the K1 is something that needs a file it doesn't provide.
Anybody here know how? (What commands to run, what to do in TWRP, what specifically to download, what to do with said files)

The official way is to download the recovery images and flash them with your PC.
https://developer.nvidia.com/gameworksdownload#?search=SHIELD%20Tablet%20K1&tx=$additional,shield

njhuiz said:
The official way is to download the recovery images and flash them with your PC.
https://developer.nvidia.com/gameworksdownload#?search=SHIELD%20Tablet%20K1&tx=$additional,shield
Click to expand...
Click to collapse
a: I only know how to flash via TWRP - How do I flash via PC?
b: Which one of those do I download?
Thanks

A Connect both devices via USB an run the included script.
B Use the latest version

TheIncandescentOne said:
a: I only know how to flash via TWRP - How do I flash via PC?
b: Which one of those do I download?
Click to expand...
Click to collapse
Use your brain and read!
From the link given above:
SHIELD TABLET RECOVERY IMAGE FLASHING INSTRUCTIONS
To follow the instructions in this guide, you will need adb and fastboot.
These tools are provided as part of the Android SDK:
http://developer.android.com/sdk/index.html
Before flashing this recovery image to your SHIELD TABLET, connect your SHIELD TABLET
via USB to the PC where you downloaded this recovery image.
Next, put your SHIELD TABLET into fastboot mode using one of the following methods:
SW method:
- Boot to android home screen
- Connect the device to linux/windows system
- Open terminal (on linux); command prompt (on windows).
- Type "adb reboot bootloader" in terminal/command prompt
HW method:
- Turn off the device
- Press "Volume Down" -> "Power", hold "Volume Down" and leave Power buttons till device boots
To flash this recovery image to your SHIELD TABLET, run the following commands from
the directory where you extracted the recovery image package. If this is the
first time you have done this procedure, you must unlock the bootloader (see
below):
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot flash staging blob
Unlocking the Bootloader
Your SHIELD TABLET may have shipped with a locked bootloader. To update the device,
you must unlock the bootloader using the following:
- fastboot oem unlock
- Press the "Volume Down" button to select "Unlock bootloader" option on device
- Press the "Power" button to confirm the unlock. Your device's bootloader is now unlocked.
Click to expand...
Click to collapse

Strange instructions. Official ROMs should flash fine with a locked bootloader.. and last time I checked, there was a script for all these fastboot flash X commands.
I would hope that there are more accurate instructions in the actual factory image zip.

Sorry, I'm very new to these sorts of things, and didn't realize I had to unzip the files. I thought I just had to flash via TWRP like any other ROM.

How to install TWRP into the LG P500H from Koodo?

I have a Koodo LG P500H. I am having a very hard time installing TWRP.
Firstly Play store doesn't work. It has this old thing called "Market" that has some apps, but not all. Market eventually gets updated to Playstore, but I can't even find TWRP manager. There was another app in the Playstore that I tried called ROM Manager. It said it installed TWRP for me. I restarted the phone, and nothing happened.
Restarting and Holding power/volume down/home will show a picture that seems to be some sort of recovery mode. But it only run for 1-2 seconds before the phone restarts itself. Nothing happens.
I tried to use ADB. But after rebooting the device it just restarted without ever going into recovery mode. So the flash command just get stuck at "Waiting for Device." Does this phone even have a recovery mode?
This phone doesn't support Odin.
I am used to using TWRP. Without it I cannot flash the phone into new OS.
And every single time I fail, the whole phone seems to have reformatted. So I have to enter in my wifi password and gmail again. All of that typing on a very small keyboard takes a lot of time. I had spent hours on this phone without getting TWRP working.
Please help.

going to twrp web site here
downloading the recovery
reboot to fastboot ( bootloader ) than using terminal whit adb driver :
fastboot flash recover '' recovery.img ''

Gw4nM4n said:
going to twrp web site here
downloading the recovery
reboot to fastboot ( bootloader ) than using terminal whit adb driver :
fastboot flash recover '' recovery.img ''
Click to expand...
Click to collapse
The problem is when I reboot into fastboot (adb reboot bootloader), the phone will go into "phone off battery charging mode". It never actually goes into the bootloader.

Ok I did the following and it seems fastboot and TWRP works now. Be sure to enable USB Debugging on your P500.
1) Fastboot tutorial (I did everything here. I hit "ok" on the LGMDP 1.5 tool as needed. Do not wait till the countdown timer goes to zero.)
http://forum.xda-developers.com/showpost.php?p=15122833&postcount=100)?
FastBoot Tutorial
1. Please download this (or from here) file and unzip it in to any folder.
2. Start LGMDP 1.5 tool with the phone connected (you need to have USB drivers installed) and click on Select Port
3. A separate window should appear like the one below
Just click connect
4. Another window will take shape (LGE Mobile security) with lots of options (links)
Click on the first upper right Browse and select the folder in with you have unzipped the files. You will get some errors that some image, table or headers are missing. Just click OK and in the end everything that should remain selected is Partition Table, APPSBL Image Header and APPSBL Image.
Now just close the window (click on x)
5. Now you are back on the main window and here you'll have to click on Download
6. You are almost done and from now on everything should go on automatically.
NV Backup
Autorestart in Emergency\Download mode and upgrade the files (you selected on step 4)
NV Restore (the last step) Do not disconnect the USB cable until the restore is done
Wait for the phone to restart in normal mode (your current rom).
That should be everything you need to do to get fastboot enabled.
Click to expand...
Click to collapse
2) Install PdaNet+ (This was the only thing I did in this tutorial. It fixed the usb driver and the fastboot can then communicate with my PC.)
http://forum.xda-developers.com/showthread.php?t=1350733
http://pdanet.co/a/
(Note: On top of Partition Table, APPSBL Image Header and APPSBL Image in step 4, I also selected the TWRP image file as my RECOVERY image. Not sure if this make a difference. )
(Note 2: I think you can also get the LG drivers here.)
3) Restart, hold down power + home to boot to the fastboot. Or in ADB type adb reboot bootloader.
4) Open ADB (while phone is still in fastboot mode) and type fastboot flash recovery twrp.img (after downloading the TWRP image, renaming it and moving it to my ADB root folder. I am using TWRP 2.8.0.1 here.)
5) Type fastboot reboot
6) After the phone restarts, type adb reboot recovery. TWRP runs for me. Power+Home+Volume Down (3 button combo) also works now. (Previously this would reset the phone.)

Hey Man, im glad it worked. I could use your help.
I bricked my phone and need the restore file, Do you think you could make a backup from TWRP and upload it?
I would be super grateful.
Thank you.
Here is a zip with CM11, twrp 3.0.2.0 and Gapps for CM11.
Its the best rom I found.
https://www.dropbox.com/s/qt7z1cxq92nhpz5/LgP500CM11V4.4.4.zip?dl=0

Hi. What is your "brick" like? Does your TWRP still run? If yes you can just copy a custom OS into your Microsd card and install it from your Microsd.
You can also use ADB push to move files from your PC to the phone.
http://www.androidauthority.com/android-customization-transfer-files-adb-push-adb-pull-601015/
Sent from my MT2L03 using XDA-Developers mobile app
If you TWRP doesn't run, you need to install that first. Do steps 3 and 4 in the above post to boot into bootloader and install TWRP.
3) Restart, hold down power + home to boot to the fastboot. Or in ADB type adb reboot bootloader.
4) Open ADB (while phone is still in fastboot mode) and type fastboot flash recovery twrp.img (after downloading the TWRP image, renaming it and moving it to my ADB root folder. I am using TWRP 2.8.0.1 here.)

Messed up my Shield Tablet

I found my Shield Tablet again today. I tried to install a costom ROM once, but I think I failed with rooting my tablet. The reason for this is, that i had no clue what i was doing.
I would like to have a fully functional tablet again, but i still have no clue what to do.
I try to describe the current status.
- I have a Shield Tablet 16GB Wlan with Android 5.1.1
- With Root Checker: No root.
- In the Bott menu it shows that the device is unlocked.
- There is a SuperSU app, but i get a notification , that the SU binary needs to be updated. If I do that it fails every time and tells me to reboot. After that nothing changed. Same Problem.
- There is a OTA Update, when i try to restart my tablat this comes up:
Root Access Possibly Lost Fix?
THIS CANNOT BE UNDONE
1. YES fix root (/system/xbin/su)
2. NO do not fix
After testing both, no changes
I tried to find a solution on my own for the last 3h, but I just failed over and over again.
Root access is optional for me now, i don't need it, but it would be nice to have it.
Could someone tell me what I should do? (Or post a link to instructions wich fits to my problems)
Thanks in advance

What version of software are you on? I recommend downloading the last Marshmallow recovery image available (for the original Shield, it's package 4.4), unzip the contents to give you the various images, and then flash using Fastboot. Just boot the tablet while holding down the power+vol down key, then release when the screen lights up. Plug into your PC, and run the Minimal ADB+Fastboot (google it, I think version 1.4 is latest).
Download site from Nvidia: https://developer.nvidia.com/gameworksdownload
Follow the instructions in the recovery package. Basically like this, assuming your images are in your fastboot directory:
SHIELD TABLET RECOVERY IMAGE FLASHING INSTRUCTIONS
To follow the instructions in this guide, you will need adb and fastboot.
These tools are provided as part of the Android SDK:
http://developer.android.com/sdk/index.html
Before flashing this recovery image to your SHIELD TABLET, connect your SHIELD TABLET
via USB to the PC where you downloaded this recovery image.
Next, put your SHIELD TABLET into fastboot mode using one of the following methods:
SW method:
- Boot to android home screen
- Connect the device to linux/windows system
- Open terminal (on linux); command prompt (on windows).
- Type "adb reboot bootloader" in terminal/command prompt
HW method:
- Turn off the device
- Press "Volume Down" -> "Power", hold "Volume Down" and leave Power buttons till device boots
To flash this recovery image to your SHIELD TABLET, run the following commands from
the directory where you extracted the recovery image package. If this is the
first time you have done this procedure, you must unlock the bootloader (see
below):
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot flash staging blob
Unlocking the Bootloader
Your SHIELD TABLET may have shipped with a locked bootloader. To update the device,
you must unlock the bootloader using the following:
- fastboot oem unlock
- Press the "Volume Down" button to select "Unlock bootloader" option on device
- Press the "Power" button to confirm the unlock. Your device's bootloader is now unlocked.

[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.