Database Info

[Q] First timer Rooter having problems

Hello everyone. I am trying to root and flash my TF300T for the first time, and I am running into some problems.
I downloaded the unlocking tool from asus and that seemingly worked fine.
Now however when I try to boot into recovery mode, the android just falls down and gives me an error message. I am able to boot into the standard android mode without an issue. I tried to root with kingo which seemed to work as I can access the SuperSM.
I downloaded Minimal ADB and Fastboot to try and flash a ROM but I cant see the device in flashboot but I can in adb. (Saw on a different thread that I need to be in recovery mode to see this?)
I downloaded the naked universal drivers and put on everything that said asus but that didnt help at all.
My main goal is to get lollipop on my tablet but I cant seem to make any headway. Can someone help point me in the right direction on what I am doing wrong or what I should do next? Any help would be appreciated. Thanks.

Terry_Tsang said:
Hello everyone. I am trying to root and flash my TF300T for the first time, and I am running into some problems.
I downloaded the unlocking tool from asus and that seemingly worked fine.
Now however when I try to boot into recovery mode, the android just falls down and gives me an error message. I am able to boot into the standard android mode without an issue. I tried to root with kingo which seemed to work as I can access the SuperSM.
I downloaded Minimal ADB and Fastboot to try and flash a ROM but I cant see the device in flashboot but I can in adb. (Saw on a different thread that I need to be in recovery mode to see this?)
I downloaded the naked universal drivers and put on everything that said asus but that didnt help at all.
My main goal is to get lollipop on my tablet but I cant seem to make any headway. Can someone help point me in the right direction on what I am doing wrong or what I should do next? Any help would be appreciated. Thanks.
Click to expand...
Click to collapse
Ok I was dumb and figured out the first half of my problem. I thought it had to boot into recovery mode to get the fast loader to work. Anyways now it lists my device when I type fastload device but when I try to flash twrp it gives me an error saying
Sending 'Recovery" <6800 KB> ...
Failed (command write failed(No such device or address))
Can someone please help? thanks

I guess you forgot "-i 0x0b05" in the command
it should look like this:
fastboot -i 0x0b05 flash recovery twrp.blob
if fastboot devices detects tablet then this should work.
AFAIK Asus is the only one brand that needs "-i [hex_ID]" even when it is the only fastboot device detected by "fastboot devices" command
Sent from my TF300T using XDA Free mobile app

th3cr0w said:
I guess you forgot "-i 0x0b05" in the command
it should look like this:
fastboot -i 0x0b05 flash recovery twrp.blob
if fastboot devices detects tablet then this should work.
AFAIK Asus is the only one brand that needs "-i [hex_ID]" even when it is the only fastboot device detected by "fastboot devices" command
Sent from my TF300T using XDA Free mobile app
Click to expand...
Click to collapse
That id string is a vendor code and all android vendors have one ....
It is not need to flash from fastboot, it is only for safety that you need to use the vendor id ....
Thx Josh

I remembered reading about that while performing nvflash backup - https://www.androidroot.mobi/pages/guides/tegra3-guide-nvflash-jellybean/
and then I remembered it didn't work for me without that vendor ID specified manually,
later on I rooted my cousin's Sony phone and that one did fastboot without -i option, so I concluded it must be asus specific "issue" - not to detect ID automatically or sth ....
Anyway @Terry_Tsang - If you have not tried like that, it is always worth a shot ;]

I have tried it with and without the -i tag and get the same error. I have a feeling my recovery file is corrupt as I get an error when I try to boot into that mode. I also now have a new error instead of unable to write, it says invalid argument.
Since I was able to root it with kingo, I tried the TWRP app but it also crashes when I try to do an install of TWRP through the app. I have no idea how to proceed.
I have tried, rooting with kingo and the commands. I have tried unrooting it. I have tried rooting then using ROM Manager and TWRP apps. I have no idea how to continue. I definately think something is wrong tho lol.

th3cr0w said:
I remembered reading about that while performing nvflash backup - https://www.androidroot.mobi/pages/guides/tegra3-guide-nvflash-jellybean/
and then I remembered it didn't work for me without that vendor ID specified manually,
later on I rooted my cousin's Sony phone and that one did fastboot without -i option, so I concluded it must be asus specific "issue" - not to detect ID automatically or sth ....
Anyway @Terry_Tsang - If you have not tried like that, it is always worth a shot ;]
Click to expand...
Click to collapse
Well its all good not a point of being right a point in giving good info ...
Here are the most use vendor codes not just an Asus thing ?
https://gist.github.com/lj50036/3b30ecc420b5838646be
Thx Josh
---------- Post added at 09:43 PM ---------- Previous post was at 09:40 PM ----------
Terry_Tsang said:
Hello everyone. I am trying to root and flash my TF300T for the first time, and I am running into some problems.
I downloaded the unlocking tool from asus and that seemingly worked fine.
Now however when I try to boot into recovery mode, the android just falls down and gives me an error message. I am able to boot into the standard android mode without an issue. I tried to root with kingo which seemed to work as I can access the SuperSM.
I downloaded Minimal ADB and Fastboot to try and flash a ROM but I cant see the device in flashboot but I can in adb. (Saw on a different thread that I need to be in recovery mode to see this?)
I downloaded the naked universal drivers and put on everything that said asus but that didnt help at all.
My main goal is to get lollipop on my tablet but I cant seem to make any headway. Can someone help point me in the right direction on what I am doing wrong or what I should do next? Any help would be appreciated. Thanks.
Click to expand...
Click to collapse
You do not have to root to flash a recovery anyway ...
If you would like to look into this more shoot me an email at [email protected]
Thx Josh

Terry_Tsang said:
I have a feeling my recovery file is corrupt as I get an error when I try to boot into that mode. I also now have a new error instead of unable to write, it says invalid argument.
Click to expand...
Click to collapse
You did check the checksum of your download right?

How to update early TWRP withoput adb and spooling rom problem

I'd like to know how to update my TWRP from v 2.4.4.0 to a later version. This version doesn't seem to allow flashing of an img file on external sd card. I have tried without success on 2 computers to get windows to recognise this android, so I'm hoping there is another way. Eventually I'd like to install Katkiss,Gapps and SU on this android. At present it has no rom.
Secondly, I tried to install Cromi X and all goes well up until I reboot and it continually spools on the opening screen so I don't know what that is about but hoping with a later TWRP I may be able to set the partitioning better which may or may not be part of the cause.

Reboot recovery twrp.
Go to install.
Click on install image.
Search downloaded recovery.
Select recovery.
And install.
Done
sent from moto g2014 with cm13
---------- Post added at 03:12 AM ---------- Previous post was at 03:11 AM ----------
Ot use flashify app.
It requires root.
sent from moto g2014 with cm13

There is no 'install image' on v2.4.4.0 and that version of TWRP does not seem to recognise .img files on the external sd card. On a later version of TWRP your solution would work.

If you want to flash the recovery in recovery it has to be inside a flashable zip (except for the latest versions).
You can use the Kang TWRP 2.8.x from post 2 here: http://forum.xda-developers.com/tra...overy-kang-twrp-tf700t-2-8-x-xarea51-t3049395
You can flash Katkiss with it no problem, and it supports the dock SD which the official TWRP does not do.
Somewhere there's also a thread where some dude keeps posting TWRP 3.x in a flashable zip, but I can't think of where right now.
That CROMi-X does not boot can have a number of reasons:
You did not format data before flashing the rom
You are on an outdated bootloader
Something is physically wrong with your emmc.
Your problem to get the tablet recognized in Windows is almost certainly a driver problem an you should get that fixed. At minimum it sucks not to have fastboot access to the tablet. And it easily could be lethal. For the tablet - not for you
Could also be a problem with a cheap knock-off replacement USB cable. If you are not using the original Asus cable that's worth investigating. And if you are using the original it may become worn. Mine is starting to allow a connection only in certain positions... Age....
Make sure the device drivers are installed and try the Google Universal Naked drivers. Minimal ADB and fastboot is an excellent tool that shimp208 still keeps current after all this time, and if none of those work try the 15 second adb installer if you are on Win 7 or earlier (just google it).

Hello my old friend. Well I have finally managed to get an adb connection and am going over to old posts of previous help you gave me with this device. Although the device is now recognised I can't get any commands to work e.g. fastboot devices simply returns me to the c:/adb prompt and adb reboot bootloader just takes the flashing underline symbol to the next line and nothing happens. I have hope that I will be able to get this working OK now I have adb access. How do I know if I am on an outdated bootloader? thanks

plato2 said:
Hello my old friend. Well I have finally managed to get an adb connection and am going over to old posts of previous help you gave me with this device. Although the device is now recognised I can't get any commands to work e.g. fastboot devices simply returns me to the c:/adb prompt and adb reboot bootloader just takes the flashing underline symbol to the next line and nothing happens. I have hope that I will be able to get this working OK now I have adb access. How do I know if I am on an outdated bootloader? thanks
Click to expand...
Click to collapse
This is not the same device you helped me with earlier...it now purrs beautifully.... this is a new challenge.

plato2 said:
Hello my old friend. Well I have finally managed to get an adb connection and am going over to old posts of previous help you gave me with this device. Although the device is now recognised I can't get any commands to work e.g. fastboot devices simply returns me to the c:/adb prompt and adb reboot bootloader just takes the flashing underline symbol to the next line and nothing happens. I have hope that I will be able to get this working OK now I have adb access. How do I know if I am on an outdated bootloader? thanks
Click to expand...
Click to collapse
Thought you looked familiar..... :cyclops:
Time to re-read this I think http://forum.xda-developers.com/showthread.php?t=2688891
Boot into the bootloader and read the small script. The last bootloader for this tablet is 10.6.1.14.10.

Yes, that is the bootloader I have. Typing fastboot devices takes me back to the/adb prompt and then typing
fastboot -i 0x0B05 flash recovery <name-of-file>
I get a <waiting for device> but nothing happens.

plato2 said:
Yes, that is the bootloader I have. Typing fastboot devices takes me back to the/adb prompt and then typing
fastboot -i 0x0B05 flash recovery <name-of-file>
I get a <waiting for device> but nothing happens.
Click to expand...
Click to collapse
Yeah, so you have a driver problem. This is nothing you have to do now. Just download the flashable zip of Kang TWRP and flash it in your current recovery.
But when you have some time to kill open Device Manager and connect and disconnect the cable to the tablet. It should give you SOME change in device manager. If it doesn't, reboot both tablet and PC and try again.
Then try a different cable.
Still nothing? This could take longer. Driver problems suck in Windows....
So - you got yourself another TF700? Had just too much fun getting Katkiss to work on the last one, eh?

berndblb said:
Yeah, so you have a driver problem. This is nothing you have to do now. Just download the flashable zip of Kang TWRP and flash it in your current recovery.
But when you have some time to kill open Device Manager and connect and disconnect the cable to the tablet. It should give you SOME change in device manager. If it doesn't, reboot both tablet and PC and try again.
Then try a different cable.
Still nothing? This could take longer. Driver problems suck in Windows....
So - you got yourself another TF700? Had just too much fun getting Katkiss to work on the last one, eh?
Click to expand...
Click to collapse
Just download the flashable zip of Kand TWRP and flash it in your current recovery.
I don't know what you mean here.... how do I 'flash it in my current recovery' I have v 2.4.4.0 and it doesn't see img files on external sd.

plato2 said:
Just download the flashable zip of Kand TWRP and flash it in your current recovery.
I don't know what you mean here.... how do I 'flash it in my current recovery' I have v 2.4.4.0 and it doesn't see img files on external sd.
Click to expand...
Click to collapse
If you downloaded from the second link, the flashable zip, you will see a zip file, not an img file.
Just hit Install, select the zip and swipe the button. Reboot when the flash is finished

All good so far. Up to the wiping data bit before converting to f2fs but this guide is missing, not sure why. I recall it was only a short set of instructions: Once that is done follow this guide to convert internal data to f2fs: http://forum.xda-developers.com/tran...p-2-8-t3073471. Can you recall that part? thanks

Got it, found it or rather another post of yours here: tf700/help/how-to-update-twrp-withoput-adb-t3437702/post68163144#post68163144 so did that and successfully installed Katkis, Gapps pico and SU....another beautiful TF700T purring...many thanks yet again...

Bootloop when starting android or RCK

I tried to flash a custom rom (KatKiss), and it seems that I did something wrong along the way because the tablet is stuck in a bootloop.
So I rebooted my tablet and access the bootloader ("fastboot devices" recognize my device) and try to go to the recovery (with the TWRP splash screen, "adb devices" recognize my device). Unfortunately after 20 seconds on the splash screen, the tablet reboots (tries to load my katkiss android but bootloop everytime).
Bootloader : 10.6.1.14.10
TWRP : 3.1.1.0
Since the fastboot recognize my device while in bootloader, I think that I should try to flash twrp since it seems to be corrupted somehow.
Every time I flashed a rom nothing went wrong but now that I have a problem I don't want to worsen it and would like some help on the issue.

Did you flash the rom in your current TWRP?
Something is off... Did you possibly flash the TF201 rom version??
Whatever you do - do not use Wipe Data from the bootloader!!
Reflash TWRP, format data, then reflash the rom
And report in more detail what you did
Sent from my Nexus 5X using Tapatalk

Thank you for the fast reply!
I did flash the rom with my current TWRP and only downloaded the rom version for the TF700. Below is what I tried from your suggestion:
I check that my device is recognized:
fastboot device
So I tried flashing TWRP:
fastboot flash recovery twrp-3.1.1-0-tf700t
After it succeeded, I reboot the tablet:
fastboot reboot
And as a result... nothing changes, I don't know if I should try with older version of TWRP. Seems like I only have access to the tablet with the fastboot.

That is very strange indeed. Yes, try a 3.0.2 version of TWRP and see if that works.
If not, I would flash the Asus stock blob in fastboot and start from scratch....
Sent from my TF700T using Tapatalk

Kromlech said:
And as a result... nothing changes, I don't know if I should try with older version of TWRP. Seems like I only have access to the tablet with the fastboot.
Click to expand...
Click to collapse
Not sure if this will help but I had a reboot problem with trying to load into TWRP. I posted my solution into a different thread but will toss it out here..
I just had this problem with a Transformer 201Prime. The cycle went something like this..
Power on.... get ASUS logo in middle, Tegra3 logo on lower right, and bootloader unlocked in upper left....
then a buzz... then reboot.....
So I would try the power button and hold the volume down... that got me into the bootloader but when I hit the volume up button it would give me the TWRP logo... then buzz and reboot...
After much monkeying around... I realized I would have to re install everything. Fortunately I had the original NVFLASH bloob files backed up so I was able to get into the NVFLASH commands.
Here is a great tutorial, it is for the 201 so be sure to download the correct files but the steps are basically the same.
https://forum.xda-developers.com/tra...prime-t3486237
The other problems is I had to download a bloob tool to 'unpack' the necessary .bin and .ebt files that are mentioned in the commands... I used the following link to download the tool.
https://github.com/AndroidRoot/BlobTools
I hope this helps shake loose a few answers.
Once I was able to get a working recovery I could flash an updated ROM. (KatKiss is my current favorite)

I tried to flash version 3.0.2 of TWRP and the problem is still the same.
@Unidave199 the link you put in your post points to a post that doesn't seems to exist anymore, has it been moved?
@berndblb how do I do for flashing a rom with the fastboot? any stock rom to recommend?

double post

Kromlech said:
I tried to flash version 3.0.2 of TWRP and the problem is still the same.
@Unidave199 the link you put in your post points to a post that doesn't seems to exist anymore, has it been moved?
@berndblb how do I do for flashing a rom with the fastboot? any stock rom to recommend?
Click to expand...
Click to collapse
Unidave's link would only help you if you generated your device specific nvflash blobs when the tablet was still functioning. Did you:
flash a specifically modded recovery - flash the moddded bootloader, use wheelie to generate and save your blobs, return everything to factory specs?
I highly doubt it since you would have mentioned...
To flash the stock blob in fastboot you download the Asus firmware from here: https://www.asus.com/my/support/Download/28/1/0/11/29/8/
Extract the zip twice until you see a blob and a meta-inf file.
Move the blob into your fastboot folder, discard the rest of the file
Issue these commands one by one, letting each one finish before starting the next. Some will finish quick, others may take up to 3 minutes:
Code:
fastboot erase system
fastboot erase boot
fastboot erase recovery
fastboot erase misc
fastboot erase cache
fastboot erase userdata
fastboot flash system blob
fastboot reboot
The first boot will take a while, but that should put you back on a stock JB 4.2 system.
Trash all the files you used in your last attempt and redownload the rom, gapps and supersu
Fastboot flash TWRP
Reboot
Format /data in TWRP (this will take up to 1 hour - let it finish!!), then convert /data to f2fs
Flash the rom, gapps, supersu
If you flash Nougatella remember that you have to turn on wifi right after the language selection during setup or Google framework will crash.

Spend the end of the day doing it, but it worked flawlessly! Thanks a lot @berndblb, now I can use my tablet again!

Kromlech said:
I tried to flash version 3.0.2 of TWRP and the problem is still the same.
@Unidave199 the link you put in your post points to a post that doesn't seems to exist anymore, has it been moved?
@berndblb how do I do for flashing a rom with the fastboot? any stock rom to recommend?
Click to expand...
Click to collapse
My apologies for the problem with my link, looks like you resolved it, but wanted to post a correct working link to take someone else into the full conversation and context...
https://forum.xda-developers.com/showpost.php?p=71150385

berndblb said:
To flash the stock blob in fastboot you download the Asus firmware from here: https://www.asus.com/support/Download/28/1/0/11/fq2B3oq64av1O95/8/
Click to expand...
Click to collapse
Broken link ? that post isn't very old, either. ??

berndblb said:
Did you flash the rom in your current TWRP?
Something is off... Did you possibly flash the TF201 rom version??
Whatever you do - do not use Wipe Data from the bootloader!!
Reflash TWRP, format data, then reflash the rom
And report in more detail what you did
Click to expand...
Click to collapse
I did wipe data from bootloader, now I can't go to bootloader. How to revive my tf700t?
Please help
Thanks

ketulharini said:
I did wipe data from bootloader, now I can't go to bootloader. How to revive my tf700t?
Please help
Thanks
Click to expand...
Click to collapse
You'll need to refer to post #8. However, the link to the tf700 stock blob is broken. You'll have to search Google for one. They're out there, but it does require digging .Make sure the one you get is for the proper SKU of your tablet (US, Worldwide, JP, etc.). I completed the process myself maybe a month ago. Good luck!

monogwai said:
You'll need to refer to post #8. However, the link to the tf700 stock blob is broken. You'll have to search Google for one. They're out there, but it does require digging .Make sure the one you get is for the proper SKU of your tablet (US, Worldwide, JP, etc.). I completed the process myself maybe a month ago. Good luck!
Click to expand...
Click to collapse
I got the stock blob ww version.
Just tab doesn't stay on fastboot mode keeps rebooting.
Don't know how to do it.
Is it possible to get stable fastboot screen some how? Or just flash the bootloader to get fastboot working.
May be this noob question but I don't know how to do.
Thanks

ketulharini said:
I got the stock blob ww version.
Just tab doesn't stay on fastboot mode keeps rebooting.
Don't know how to do it.
Is it possible to get stable fastboot screen some how? Or just flash the bootloader to get fastboot working.
May be this noob question but I don't know how to do.
Thanks
Click to expand...
Click to collapse
There is one more piece to the puzzle- hold short while I dig it up.
Here it is: http://www.transformerforums.com/forum/transformer-pad-infinity-tf700-tegra-3-development/46302-guide-help-my-transformer-tf700-boots-only-recovery.html
Do be *very* careful. Read thrice, do it once. Especially if you're feeling noob-y.

monogwai said:
There is one more piece to the puzzle- hold short while I dig it up.
Here it is: http://www.transformerforums.com/fo...my-transformer-tf700-boots-only-recovery.html
Do be *very* careful. Read thrice, do it once. Especially if you're feeling noob-y.
Click to expand...
Click to collapse
Thanks for this information.
One more question,
My tab is keep bootlooping neither it stays on twrp nor bootloader.
It has blue screen of recovery that is twrp after 5 to 10 seconds it boots again.
Is this enough time to execute the commands while it is on blue screen?
Thanks

ketulharini said:
Thanks for this information.
One more question,
My tab is keep bootlooping neither it stays on twrp nor bootloader.
It has blue screen of recovery that is twrp after 5 to 10 seconds it boots again.
Is this enough time to execute the commands while it is on blue screen?
Thanks
Click to expand...
Click to collapse
Well, that depends on several things. What I did was write a short little DOS batch file to process all the fastboot commands. So, with your batch file ready, open your command prompt (change directory to your adb/fastboot directory if it's not set in system's 'path=' environment variable) and have the batch command typed in, ready to hit enter. Tether to pc via USB, proceed to boot to adb. The second you hear windows make the USB notification sound, slap that enter key. It should just process and reset the tab and get you out of TWRP bootloop. Which is just step one.
If you aren't familiar with writing bat files for DOS, let me know.

monogwai said:
Well, that depends on several things. What I did was write a short little DOS batch file to process all the fastboot commands. So, with your batch file ready, open your command prompt (change directory to your adb/fastboot directory if it's not set in system's 'path=' environment variable) and have the batch command typed in, ready to hit enter. Tether to pc via USB, proceed to boot to adb. The second you hear windows make the USB notification sound, slap that enter key. It should just process and reset the tab and get you out of TWRP bootloop. Which is just step one.
If you aren't familiar with writing bat files for DOS, let me know.
Click to expand...
Click to collapse
You mean a batch file with the adb commands right? Once he can boot into fastboot he has all the time in the world to run the commands for the buster99 (description in post #8). Depending on what situation he came from before, it might be a good idea to start all fresh...
The tricky thing are the adb push bootit.ko and the insmod command. Those have to be timed just right to get executed, so a batch file might come in handy. Both commands only take a second or two to execute, so your window of 5 seconds could work. Maybe not in the same session, but they should work.
If the insmod command does not kick the tablet into the bootloader, there are 2 possible reasoons:
adb push bootit.ko did not work
the insmod command did not work
To find out if the file push worked you could add a simple list command for the contents of /sdcard/. Again - tricky, I know since you still are working with the 5 sec window, but that's what you got to work with...
That would look something like in the attached picture. So after pushing bootit.ko you issue:
Code:
adb shell ls /sdcard/
Try it with the batch file, try it with single commands... Don't give up. As long as you have any kind of adb access you should be able to solve it.
Good luck!

berndblb said:
You mean a batch file with the adb commands right?
Click to expand...
Click to collapse
Yeah.
berndblb said:
Once he can boot into fastboot he has all the time in the world to run the commands for the buster99 (description in post #8).
Click to expand...
Click to collapse
Again, mistake in my terminology. What I meant to say is, batch commands for the process involving the Bootit.ko- the adb portion.
Thanks for clearing that up.
@ketulharini
Anyhow, I was unable to get the process to take without having automated *every last step* of the process. Literally open the cmd window, have the command for your batch file typed in ready to go, and plug in. Hear the noise from windows and slap enter asap. That's the only way I could get it in time, and I'm a ridiculously fast typist.

monogwai said:
Yeah.
Again, mistake in my terminology. What I meant to say is, batch commands for the process involving the Bootit.ko- the adb portion.
Thanks for clearing that up.
@ketulharini
Anyhow, I was unable to get the process to take without having automated *every last step* of the process. Literally open the cmd window, have the command for your batch file typed in ready to go, and plug in. Hear the noise from windows and slap enter asap. That's the only way I could get it in time, and I'm a ridiculously fast typist.
Click to expand...
Click to collapse
Care to share the batch file?

Can't connect to fastboot with adb

Hi,
I'm trying to boot a twrp image on my Motorola One Vision without flashing it or rooting the phone. Reason is I want to try it out and also tweek som files but not necessarily rooting it.
I've unlocked the boot loader and enabled developer options and set USB to debugging. When I connect the phone to the computer and use ./adb devices it is detected fine. When I disconnect, reboot and enable fastboot I get the fast boot menu with the options but when I connect it to the computer it will not detect the phone. ./adb devices give no output and ./fastboot boot /PATH/TO/IMAGE.FILE just gives the output "waiting for device". I've tried this from both my windows partition and Linux Debian with the same result. Cables are fine as I can use adb to pull files and such. It's basically in the fastboot menu that it doesn't seem to respond.
The phone is running Android 10 Kane 4.14. I've tried twrp 3.4 but I don't think the image is the issue since it won't respond to commands in fastboot.
Does anyone have any suggestions for troubleshooting this? Any and all help is appreciated.
Kind regards
Magnus
Ps: Posted this a few days ago in the general Q&A as a suspect it's not necessarily a specific One Vision problem but it didn't get any replies so I'll try here. Sorry if it's a bit of a double post. ds-

I've made some headway and manage to reboot and connect but when I try to ./fastboot boot IMAGE I get the message Validation image failed.
If I understood it correct it's not possible to boot an image in this way which is of an earlier version than the one installed. Is this correct?
I''ve got 4.4 installed, and the image is 3.4.
/Magnus

Cardinal_Vice said:
I've made some headway and manage to reboot and connect but when I try to ./fastboot boot IMAGE I get the message Validation image failed.
If I understood it correct it's not possible to boot an image in this way which is of an earlier version than the one installed. Is this correct?
I''ve got 4.4 installed, and the image is 3.4.
/Magnus
Click to expand...
Click to collapse
Did you flash the patched vbmeta image?

ttomovcik said:
Did you flash the patched vbmeta image?
Click to expand...
Click to collapse
No, I can't get that to work. I'm not sure if I understand where I should place it.
Appreciate that you pitch in.

I have a One Vision x1907-1 variant and recently it bricked. The device can't be recognized and don't works with the motorola drivers . So it's similar issue maybe

mjraogr said:
I have a One Vision x1907-1 variant and recently it bricked. The device can't be recognized and don't works with the motorola drivers . So it's similar issue maybe
Click to expand...
Click to collapse
No, my phone works perfectly fine. I just can't flash the vbmeta image and I can't run the .bat file.

ASUS TF201 - issues getting any OS to boot (though TWRP works fine).

Hello folks.
In my months-long quest to avoid turning an ASUS TF201 tablet into e-waste ...
I've searched, searched again, searched some more, and while I've found answers (none of which have worked), a lot of them seem to be dated, or depend on files that are no longer available for download, so I turn to you for suggestions.
Current state:
The tablet will not boot Android.
TWRP works fine.
The problem(s):
I am unable to flash the device with ASUS' official firmware. TWRP returns an error when the ASUS firmware runs its "checks," then fails.
I have tried Chrombi-KK, following the directions step by step, but a few strange things occur:
1. When flashing through TWRP (.zip images sitting on an SD card), everything completes with no errors, but on reboot, the tablet displays its ASUS logo, but does not boot into Android. I let it sit there for three hours today, and it just sat there, displaying the logo.
2. When trying to flash from ADB (TWRP update for example), it sits there endlessly at "< waiting for any device >". This is odd, because ADB's "reboot" commands works fine.
Now, I'm at a loss. The hardware seems fine, but I'm stuck ... and this is after months of trying, giving up, trying again etc.
Is this a lost cause?
Any help at all would be much appreciated. I've tried so many things, so many online "solutions," to no avail. So I turn to the experts as my Hail Mary pass before sending this to the eco centre.
Thanks for reading, and hopefully ... just maybe ... someone will have the magical set of instructions to get this thing working again.

The only command to verify whether an ADB / Fastboot connection got successfully established is
Code:
adb devices OR fastboot devices
The command
Code:
adb reboot
simply in Android's system file called build.prop (re-)sets flag ro.bootmode to normal what is read by bootloader when Android boots up.

jwoegerbauer said:
The only command to verify whether an ADB / Fastboot connection got successfully established is
Code:
adb devices OR fastboot devices
The command
Code:
adb reboot
simply in Android's system file called build.prop (re-)sets flag ro.bootmode to normal what is read by bootloader when Android boots up.
Click to expand...
Click to collapse
As it turns out, I had already stumbled upon your your "ADB-FASTBOOT-Installer" during a trip down one of the many rabbit holes trying to get this tablet working again.
adb devices returns:
List of devices attached​0123456789ABCDEF recovery​
adb reboot restarts the tablet, which I assume means the ASUS tablet driver is working.
I can't seem to do anything else with adb, however, such as push a new TWRP version, etc. This may be a key point, as it seems likely the version I have of TWRP may be too old to support upgrade using something like Chrombi-KK.
Is this a likely theory?

I would re-flash phone's Stock ROM to get rid off of all mofications applied so far to check for phone is working as expected.

NotTheLips said:
Hello folks.
In my months-long quest to avoid turning an ASUS TF201 tablet into e-waste ...
I've searched, searched again, searched some more, and while I've found answers (none of which have worked), a lot of them seem to be dated, or depend on files that are no longer available for download, so I turn to you for suggestions.
Current state:
The tablet will not boot Android.
TWRP works fine.
The problem(s):
I am unable to flash the device with ASUS' official firmware. TWRP returns an error when the ASUS firmware runs its "checks," then fails.
I have tried Chrombi-KK, following the directions step by step, but a few strange things occur:
1. When flashing through TWRP (.zip images sitting on an SD card), everything completes with no errors, but on reboot, the tablet displays its ASUS logo, but does not boot into Android. I let it sit there for three hours today, and it just sat there, displaying the logo.
2. When trying to flash from ADB (TWRP update for example), it sits there endlessly at "< waiting for any device >". This is odd, because ADB's "reboot" commands works fine.
Now, I'm at a loss. The hardware seems fine, but I'm stuck ... and this is after months of trying, giving up, trying again etc.
Is this a lost cause?
Any help at all would be much appreciated. I've tried so many things, so many online "solutions," to no avail. So I turn to the experts as my Hail Mary pass before sending this to the eco centre.
Thanks for reading, and hopefully ... just maybe ... someone will have the magical set of instructions to get this thing working again.
Click to expand...
Click to collapse
ok, so good thing is twrp boots, now again if you have box with wich the tablet come try to get correct model number and search for official frimware to flash through adb using flashall.cmd
again, if official rom is not installing don't worry flash THIS custom rom using TWRP make sure to wipe all before flashing.

jwoegerbauer said:
I would re-flash phone's Stock ROM to get rid off of all mofications applied so far to check for phone is working as expected.
Click to expand...
Click to collapse
As I mentioned: "I am unable to flash the device with ASUS' official firmware. TWRP returns an error when the ASUS firmware runs its "checks," then fails."
This is exactly what I'm trying to find a solution on how to do.

[email protected] said:
ok, so good thing is twrp boots, now again if you have box with wich the tablet come try to get correct model number and search for official frimware to flash through adb using flashall.cmd
again, if official rom is not installing don't worry flash THIS custom rom using TWRP make sure to wipe all before flashing.
Click to expand...
Click to collapse
Yes, thank goodness it's not completely bricked, haha.
I think the version of TWRP that's on there may be too old, and I'm having trouble pushing a newer version through ADB ... so this is the current hurdle I'm trying to overcome.
Might you happen to have a link to the ASUS TF201 drivers known to work in Windows 10, so I can rule that out? If I can't get ADB to push a newer TWRP version from Windows, I may give it a go in Linux too ... but I'm trying not to open up new avenues of complexity, so I've restricted all my efforts to Windows as that's where most of the online help I can find tends to take place.
Thanks!
Edit: Unfortunately, the download link to [ROM][N 7.1] KatKiss Nougat [TF201] no longer works:
404 Not Found
This has been another constant obstacle, i.e., recommended files to download are no longer available.

NotTheLips said:
As I mentioned: "I am unable to flash the device with ASUS' official firmware. TWRP returns an error when the ASUS firmware runs its "checks," then fails."
This is exactly what I'm trying to find a solution on how to do.
Click to expand...
Click to collapse
Nobody needs TWRP to re-flash a device's Stock ROM.
It's typically done via ADB Sideload method.

NotTheLips said:
Yes, thank goodness it's not completely bricked, haha.
I think the version of TWRP that's on there may be too old, and I'm having trouble pushing a newer version through ADB ... so this is the current hurdle I'm trying to overcome.
Might you happen to have a link to the ASUS TF201 drivers known to work in Windows 10, so I can rule that out? If I can't get ADB to push a newer TWRP version from Windows, I may give it a go in Linux too ... but I'm trying not to open up new avenues of complexity, so I've restricted all my efforts to Windows as that's where most of the online help I can find tends to take place.
Thanks!
Edit: Unfortunately, the download link to [ROM][N 7.1] KatKiss Nougat [TF201] no longer works:
404 Not Found
This has been another constant obstacle, i.e., recommended files to download are no longer available.
Click to expand...
Click to collapse
how you tried to flash stock rom, i mean do you boot into fastboot after booting into twrp or not?

jwoegerbauer said:
Nobody needs TWRP to re-flash a device's Stock ROM.
It's typically done via ADB Sideload method.
Click to expand...
Click to collapse
As I mentioned before, "2. When trying to flash from ADB (TWRP update for example), it sits there endlessly at "< waiting for any device >". This is odd, because ADB's "reboot" commands works fine."

[email protected] said:
how you tried to flash stock rom, i mean do you boot into fastboot after booting into twrp or not?
Click to expand...
Click to collapse
I've tried two methods.
The first is to try to flash it from TWRP, but this fails with an error. The stock ROM appears to be checking for dependencies, and it fails this check.
The second is to use ADB (fastboot) while the tablet is sitting in TRWP. It stalls at "< waiting for any device >".
So this the problem. Neither of those two methods work for the stock ROM.
With a third party ROM, TWRP appears to flash the device successfully (no errors or stalls). When I reboot the device, it will not boot Android, and gets stuck at the ASUS boot logo indefinitely.
I'm not sure what do next to get past these two problems.

NotTheLips said:
I've tried two methods.
The first is to try to flash it from TWRP, but this fails with an error. The stock ROM appears to be checking for dependencies, and it fails this check.
The second is to use ADB (fastboot) while the tablet is sitting in TRWP. It stalls at "< waiting for any device >".
So this the problem. Neither of those two methods work for the stock ROM.
With a third party ROM, TWRP appears to flash the device successfully (no errors or stalls). When I reboot the device, it will not boot Android, and gets stuck at the ASUS boot logo indefinitely.
I'm not sure what do next to get past these two problems.
Click to expand...
Click to collapse
here is the problem, ok so follow the steps carefully,
boot into twrp
then connect your phone to your pc
type "adb devices",
if some thing like 1234567890 -recovery shows up proceed else start-over,
after successfully detected by adb typed "adb reboot bootloader"
then after booting into fastboot mode type "fastboot device"
if something shows up proceed else tell me
make sure you have installed adb and fastboot properly,
after all this run the cmd file in stock rom, to automatically flash it.

[email protected] said:
here is the problem, ok so follow the steps carefully,
boot into twrp
then connect your phone to your pc
type "adb devices",
if some thing like 1234567890 -recovery shows up proceed else start-over,
after successfully detected by adb typed "adb reboot bootloader"
then after booting into fastboot mode type "fastboot device"
if something shows up proceed else tell me
make sure you have installed adb and fastboot properly,
after all this run the cmd file in stock rom, to automatically flash it.
Click to expand...
Click to collapse
Here's what happened:
C:\Windows\system32>adb devices​List of devices attached​0123456789ABCDEF recovery​​C:\Windows\system32>adb reboot bootloader​​C:\Windows\system32>fastboot device​< waiting for any device >​​It sits at < waiting for any device > indefinitely, until I reboot the device.

NotTheLips said:
Here's what happened:
C:\Windows\system32>adb devices​List of devices attached​0123456789ABCDEF recovery​​C:\Windows\system32>adb reboot bootloader​​C:\Windows\system32>fastboot device​< waiting for any device >​​It sits at < waiting for any device > indefinitely, until I reboot the device.
Click to expand...
Click to collapse
the problem is your pc does not have adb and fastboot properly installed

try this one https://forum.xda-developers.com/t/tool-minimal-adb-and-fastboot-2-9-18.2317790/

also, use this official driver https://www.asus.com/SupportOnly/Eee_Pad_Transformer_Prime_TF201/HelpDesk_Download/
if your pc is 64 bit use win764bit version

NotTheLips said:
Here's what happened:
C:\Windows\system32>adb devices​List of devices attached​0123456789ABCDEF recovery​​C:\Windows\system32>adb reboot bootloader​​C:\Windows\system32>fastboot device​< waiting for any device >​​It sits at < waiting for any device > indefinitely, until I reboot the device.
Click to expand...
Click to collapse
This "waiting for device" problem happens when the USB device node is not accessible to your current user. The USB id is different in Fastboot mode, so you can easily have permission to it in ADB but not in Fastboot.
Each manufacturer implements Fastboot differently. So, if not already done yet, download and install the suitable "Android USB Driver" provided by ASUS. Then Fastboot should work.
BTW: Your device actually stucks in recovery mode.

Is OEM Unlock got enabled in Android settings? If not, Fastboot never will work.