Database Info

Unbrick Help

Ok to start I have rooted my device and unlocked the bootloader. My device worked fine till I came home and tried to turn it on and it wouldn't wake up. So I held down the power button till it viberated and rebooted. Then the device got stuck at the ASUS screen. So i held down the power button and down volume and tried to boot into recovery. My device reboots with the following message:
The Device is UnLocked.
Android cardhu-user bootloader (2.10 e) released by "US_epad-9.4.5.22-20120615" A03
Checking for Android ota recovery
Booting recovery kernal image
and that it? Can Anyone help?

Try this: http://forum.xda-developers.com/showthread.php?p=29167483
Hope your bootloader can read it.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app

I can't get into boot loader. I was reading about NVflash and it does recognize my device with APX. I have the US_epad_user_9_4_5_22_UpdateLauncher.zip which is the US firmware. Is it possible to flash this by nvflash?

So is the bootloader/recovery that you flashed the one from this thread? If so, perhaps it would be best to ask (either in the thread or PM) the OP.

No its the stock bootloader. All I've done is unlock the bootloader and root the device. That it.

Matt7402 said:
No its the stock bootloader. All I've done is unlock the bootloader and root the device. That it.
Click to expand...
Click to collapse
First off this is a question not a development topic so you are in the wrong section. That aside it maybe worth contacting Asus and seeing if they will help you even though you unlocked your device because if what you say is correct it sounds like it is their software that messed up your device. I hope you can find a way to fix it. It would be a shame to have such a pretty brick!

Moved to Q&A.

Am I bricked?

So I made the mistake of installing Clockwork recovery mod when I installed Rom Manager on accident. Stupid mistake. I tried getting into recovery after that and it would hang right after pressing volume up at 5 secs. I did a normal restart of the tablet and decided to do a factory reset and see if i could restart with with and install TWRP. I ran the factory reset and restarted my tablet when prompted. This is when the issue started and now I'm stuck at the boot screen, the first screen you see when you start up. So i tried to start it up into recovery and it still wont budge. whats weird is it doesn't ask to press vol up it just says "Android cardhu-user bootloader <2.10 e> released by "US_epad-9.4.5.26-20120720" A03. Checking for android ota recovery. Booting recovery kernal image." Yet nothing happens. So am I bricked... is there any way out of this. My bootloader is unlocked and i am rooted... am i screwed? I read somewhere I might be able to fastboot, but is that possible if i cant get into recovery?

UPDATE: After doing some research I discovered that it might be possible using the NVflash method using site below but unfortunately NVflash is not compatible with the tf700 atm. Meanwhile I have submitting a ticket to asus but i do think NVflash would be my only hope if it actually worked for me.
androidroot.mobi/2011/06/13/nvflash-on-asus-transformer/

NVFlash will *not* work on the TF700 - others have tried - it will probably make your situation even worse.
I don't know the answer to your question off-hand, but I'm sure someone will be able to provide a method to get you back up - just stay away from NVFlash on the TF700...
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

[Q] bricked tf300

Whats up guys? I did a factrory reset/wipe data on my tf300 tab and now its stuck at the asus screen I cant even get it to turn off till the batteryruns down Power and volume down just turn the screen off for a second then back to asus screen. Any tips? Should i just replace the motherboard? What all will that involve other than the hardware swap?

jerimynal wiley said:
Whats up guys? I did a factrory reset/wipe data on my tf300 tab and now its stuck at the asus screen I cant even get it to turn off till the batteryruns down Power and volume down just turn the screen off for a second then back to asus screen. Any tips? Should i just replace the motherboard? What all will that involve other than the hardware swap?
Click to expand...
Click to collapse
what boot loader> also you did wipe from recovery not the first menu right?

jerimynal wiley said:
Whats up guys? I did a factrory reset/wipe data on my tf300 tab and now its stuck at the asus screen I cant even get it to turn off till the batteryruns down Power and volume down just turn the screen off for a second then back to asus screen. Any tips? Should i just replace the motherboard? What all will that involve other than the hardware swap?
Click to expand...
Click to collapse
Is your device unlocked? What version android were you running? And does nothing show up if you continue to hold the volume down and power button after it resets? Hopefully you'll be able to fastboot TWRP recovery. I encountered a similar problem when I tried to install a custom 4.1 ROM from stock Android 4.0.3, but my device was unlocked and I was able to successfully get things going after carefully searching these forums.

bricked tf300
MaMMiTs said:
Is your device unlocked? What version android were you running? And does nothing show up if you continue to hold the volume down and power button after it resets? Hopefully you'll be able to fastboot TWRP recovery. I encountered a similar problem when I tried to install a custom 4.1 ROM from stock Android 4.0.3, but my device was unlocked and I was able to successfully get things going after carefully searching these forums.
Click to expand...
Click to collapse
Yes it is unlocked Jellybean nothing happens if i keep holding the volume down and power except the screen goes off for a second the right back to the asus screen Fastboot won't work, it just says waiting for device My pc won't see it at all, not in device manager or anyuthing No apx either. If i could get fastboot to work i think i could fix it

I face a similar problem, but my fastboot is working. However, when I try to flash something through fastboot, the screen hangs until I reboot it. Also, if I choose one of the three options, it gives the message "Unrecoverable Bootloader Error."
I almost for got the details:
Bootloader - 10.6.1.18....I think...(it's JB 4.2.1, I'm sure)
Recovery - formerly twrp-2.4.4-jb.blob ( not 2.4.4-jb-42.blob)
Android - not booting
Device unlocked
Error (in red letters) - Unrecoverable bootloader error)
And no, I do not have NVFlash.
Any thing that I might've missed? Please let me know. ASUS wants $99 just to troubleshoot over the phone. I don't think so.

Also same problem. Fastboot 'sees' the TF300 device but does not flash.
I have the same problem. Fastboot 'sees' the TF300 device but does not flash. If somone has come up with a solution for this, could you please share, it would be greatly appreciated. Did Asus finally release NVflash for JB 4.2? It seems it is the only possible way of solving this, or isn't it?
Thanks for your help
aarsyl said:
I face a similar problem, but my fastboot is working. However, when I try to flash something through fastboot, the screen hangs until I reboot it. Also, if I choose one of the three options, it gives the message "Unrecoverable Bootloader Error."
I almost for got the details:
Bootloader - 10.6.1.18....I think...(it's JB 4.2.1, I'm sure)
Recovery - formerly twrp-2.4.4-jb.blob ( not 2.4.4-jb-42.blob)
Android - not booting
Device unlocked
Error (in red letters) - Unrecoverable bootloader error)
And no, I do not have NVFlash.
Any thing that I might've missed? Please let me know. ASUS wants $99 just to troubleshoot over the phone. I don't think so.
Click to expand...
Click to collapse
---------- Post added at 08:44 PM ---------- Previous post was at 08:31 PM ----------
It seems there is no solution yet. See this post:
http://forum.xda-developers.com/showthread.php?t=2179874&page=17

jerimynal wiley said:
Whats up guys? I did a factrory reset/wipe data on my tf300 tab and now its stuck at the asus screen I cant even get it to turn off till the batteryruns down Power and volume down just turn the screen off for a second then back to asus screen. Any tips? Should i just replace the motherboard? What all will that involve other than the hardware swap?
Click to expand...
Click to collapse
What happened in the end? Did you go to ASUS and get it repaired? How much did it cost?

Hi guys,
I solved the problem with the bootloader error (0x0000000) assistance in sending the TF300T. I told him that during the upgrade something must have gone wrong and the OS did not boot anymore. They repaired free of charge. My dealer to whom I entrusted the tablet is Mediaworld (a chain of electronic products Italian). I hope you can serve

[Q] TF700t - Stuck on "Encryption unsuccessful" on stock system

Hello Guys, Im new in the foro and I would like to have your help! Due to I called Asus Official Service in Argentina and they wanna charge me with a 100 USD for soft services out of warranty.
The thing is that my dad put a MicroSD card in his TFT700t and when he whipped it out (without proper procedure), the tablet showed the following sign "Encryption unsuccessfull" and when you press "reset tablet" button, Android start thinking (5 seconds) and then you receive the error screen.
"Encryption unsuccessful
Encryption was interrupted and can't complete. As a result, the data on your tablet is not longer accessible.
To resume using your tablet, you need to perform a factory reset. Whn you set up your tablet after the reset, you'll have an opportunity to restore any data that was backed up to your Google Account"
And a "Reset Table button"
When you hit it... there is an Android Robot image that says "Installing system upgrade" and 2 seconds later you have a Dead Android Robot with a ! sign and it says "ERROR"
I have triyed the following things:
- Hard reset by putting a clip on "reset switch"
- VOL DOWN + POWER BUTTON and Android or Wipe Data option... neither worked out.
- VOL DOWN + POWER BUTTON and put Asus Official firmware on a SDCArd renamed "EP201_768_SDUPADTE.zip"... then choose RCK option (I do not have USB Sign button).... nothing happend... the tablet looks to reset, and then they start again with "Encryption Unsuccessfull"screen.
- Finally I tryed to use Minimal ADB and Fastboot, but I used some commands to load firmware from Asus and reboot it and nothing... still the same screen.
As I said it is my old man tablet... it is standard as hell! Stock firmware, not unlocked, not rooted!
When I get into bootloader it shows:
"Androi cardhu-user bootloader <1.00 e> released by "WW_epad-10.6.1.14.8-20130514" A03
Key driver not found.. Booting OS
staring fastboot USD download protocol
Im freaking out!! Would you please help me? I really want to fix this problem for my dad.
Thanks dudes!

luisgarino said:
Hello Guys, Im new in the foro and I would like to have your help! Due to I called Asus Official Service in Argentina and they wanna charge me with a 100 USD for soft services out of warranty.
The thing is that my dad put a MicroSD card in his TFT700t and when he whipped it out (without proper procedure), the tablet showed the following sign "Encryption unsuccessfull" and when you press "reset tablet" button, Android start thinking (5 seconds) and then you receive the error screen.
"Encryption unsuccessful
Encryption was interrupted and can't complete. As a result, the data on your tablet is not longer accessible.
To resume using your tablet, you need to perform a factory reset. Whn you set up your tablet after the reset, you'll have an opportunity to restore any data that was backed up to your Google Account"
And a "Reset Table button"
When you hit it... there is an Android Robot image that says "Installing system upgrade" and 2 seconds later you have a Dead Android Robot with a ! sign and it says "ERROR"
I have triyed the following things:
- Hard reset by putting a clip on "reset switch"
- VOL DOWN + POWER BUTTON and Android or Wipe Data option... neither worked out.
- VOL DOWN + POWER BUTTON and put Asus Official firmware on a SDCArd renamed "EP201_768_SDUPADTE.zip"... then choose RCK option (I do not have USB Sign button).... nothing happend... the tablet looks to reset, and then they start again with "Encryption Unsuccessfull"screen.
- Finally I tryed to use Minimal ADB and Fastboot, but I used some commands to load firmware from Asus and reboot it and nothing... still the same screen.
As I said it is my old man tablet... it is standard as hell! Stock firmware, not unlocked, not rooted!
When I get into bootloader it shows:
"Androi cardhu-user bootloader <1.00 e> released by "WW_epad-10.6.1.14.8-20130514" A03
Key driver not found.. Booting OS
staring fastboot USD download protocol
Im freaking out!! Would you please help me? I really want to fix this problem for my dad.
Thanks dudes!
Click to expand...
Click to collapse
I am getting the same thing after a recent update to Cromi 4.4

bender_123 said:
I am getting the same thing after a recent update to Cromi 4.4
Click to expand...
Click to collapse
CROMi 4.4??? That rom is quite old. What did you update from?
What recovery are you using?
Sent from my K00C using Tapatalk

berndblb said:
CROMi 4.4??? That rom is quite old. What did you update from?
What recovery are you using?
Sent from my K00C using Tapatalk
Click to expand...
Click to collapse
Sorry for not labeling it properly. It is the latest version listed in the Dev section. I have been on custom Roms since day one and have never had this issue with any device. The button commands to get to recovery or fastboot seem non responsive and it will boot through a splash screen for the OS and then give this screen (sorry stole the pic from someone else having the problem on a phone, but the text is the same). My PC can see the tablet when it is in this state, but adb commands to reboot to fastboot just loop back around to the same Encryption failed screen...
http://imgur.com/AABbF14

bender_123 said:
Sorry for not labeling it properly. It is the latest version listed in the Dev section. I have been on custom Roms since day one and have never had this issue with any device. The button commands to get to recovery or fastboot seem non responsive and it will boot through a splash screen for the OS and then give this screen (sorry stole the pic from someone else having the problem on a phone, but the text is the same). My PC can see the tablet when it is in this state, but adb commands to reboot to fastboot just loop back around to the same Encryption failed screen...
yEAP... That's the screen... I have a stock tablet,stock firmware, not unlocked, not rooted.
The buttons do respond... but nothing seems to work...
thanks.
Click to expand...
Click to collapse

Try to boot into fastboot: Hold Power and Volume Down buttons until you see three icons.
If you can get into the bootloader (see above) you have a fighting chance to get this solved. Although I have not tried the fastboot/adb commands I have in mind on a locked device. No idea if they would work but no harm in trying.
You can also try to get adb access while in recovery, but you need to set up fastboot/adb on your computer first.
Let me know if you need help with either.
Sent from my K00C using Tapatalk

Sound like you need to reinstall the os. You can find info here
http://forum.xda-developers.com/showthread.php?t=1946456

[Q] I think I have bricked my Asus TF700T Help!

I have messed around with all my electronics in the passed, rooted them, put custom roms etc. with no trouble. So after getting frusterated with my Asus TF700T, I decided it was time to put Cyanogenmod on it. I read up on the forums and it recommended TWRP, I have always used clockwork mod but because TWRP was recommended I used that. I followed the directions and rebooted to the startup and it is stuck on the Cyanogenmod startup screen. So thinking that maybe it was just taking a long time because it was the first time, I waited and waited and waited. 24 hours later still stuck on the startup screen. I decided to try again, I pressed the power button and the volume down button and this is what I see:
Key driver not found.. Booting OS
Android cardhu-user bootloader <1.00 e> released by "US_epad-10.6.1.14.10-20130801" A03
Starting Fastboot USB Download Protocol
Than I have 3 choices to choose from: RCK, Android, and wipe data
When I press volume up once to select RCK I get a message stating:
Booting Recovery Kernel image
Booting Failed
Unrecoverable bootloader error <0x00000000>. (This part is in red)
After reading I decided to try tranformer tool kit. So I put the tablet into APX mode. Seems to work, tablet restarts with a blank screen, the computer makes the appropriate noises expected when it detects the tablet, but when I check ADB I get a message ADB is not working or communicating with your pad. Evidently I screwed things up somewhere but I don't know where to go from here... Please, If anyone can help, It would be so appreciated.

Sir,
Please wait until mods will move this thread to the device specific forum for more relevant answers.
Stand by
Good luck

I sounds like the recovery flash failed. If you haven't already, I would try to re-flash TWRP through ADB and fastboot.
If you aren't sure how to do that through ADB use this post:
http://forum.xda-developers.com/showthread.php?t=2688891
Its the beginners guide in the general section.
I may be wrong here, but I've taken my TF700 from the brink of death and back again a few times.

What TWRP version did you flash and how???
The unrecoverable bootloader error is not good news. Usually you need a buster99 to get your tablet back - if you still can get into the bootloader and fastboot.
If you can, follow the instructions below to the letter (naturally you have to flash the TF700 system blob, not the TF300!), then flash a compatible recovery and a rom compatible with your recovery and bootloader. And if you're not sure ask first, then flash....
http://forum.xda-developers.com/showthread.php?t=2179759&page=2

xellysiax said:
I have messed around with all my electronics in the passed, rooted them, put custom roms etc. with no trouble. So after getting frusterated with my Asus TF700T, I decided it was time to put Cyanogenmod on it. I read up on the forums and it recommended TWRP, I have always used clockwork mod but because TWRP was recommended I used that. I followed the directions and rebooted to the startup and it is stuck on the Cyanogenmod startup screen. So thinking that maybe it was just taking a long time because it was the first time, I waited and waited and waited. 24 hours later still stuck on the startup screen. I decided to try again, I pressed the power button and the volume down button and this is what I see:
Key driver not found.. Booting OS
Android cardhu-user bootloader <1.00 e> released by "US_epad-10.6.1.14.10-20130801" A03
Starting Fastboot USB Download Protocol
Than I have 3 choices to choose from: RCK, Android, and wipe data
When I press volume up once to select RCK I get a message stating:
Booting Recovery Kernel image
Booting Failed
Unrecoverable bootloader error <0x00000000>. (This part is in red)
After reading I decided to try tranformer tool kit. So I put the tablet into APX mode. Seems to work, tablet restarts with a blank screen, the computer makes the appropriate noises expected when it detects the tablet, but when I check ADB I get a message ADB is not working or communicating with your pad. Evidently I screwed things up somewhere but I don't know where to go from here... Please, If anyone can help, It would be so appreciated.
Click to expand...
Click to collapse
xellysiax - We are sorry to hear about your tablet and is this still an ongoing issue? Send us an email at [email protected] with this post and your serial number and we will be more than happy to assist you.
If you have any further questions, comments, or concerns please do not hesitate to let us know. We will be more than happy to assist you. Once again, thank you for choosing ASUS products and services.
Thank you,
-In Search of Incredible-
Technical Support Department
http://www.asus.com :: http://service.asus.com/

Ummmm let me take a wild guess what customer support will advise:
Sorry you unlocked so no warranty but send it in and for $300 we may repair it. If we can't we only charge you for shipping both ways.
Nice to see you, Asus! Where've you been the last 2 years?

berndblb said:
Ummmm let me take a wild guess what customer support will advise:
Sorry you unlocked so no warranty but send it in and for $300 we may repair it. If we can't we only charge you for shipping both ways.
Nice to see, Asus! Where've you been the last 2 years?
Click to expand...
Click to collapse
Hush! @Asus_USA wanted to anounce the roll-out of Android Lollipoop for ASUS Transformers. Or was it the source code of bootloader?

das chaos said:
Hush! @Asus_USA wanted to anounce the roll-out of Android Lollipoop for ASUS Transformers. Or was it the source code of bootloader?
Click to expand...
Click to collapse
Yeah - I had that dream too one time or another....

Hi all, I just encountered this same error message for the TF700T when going into fastboot mode
Key driver not found.. Booting OS
Android cardhu-user bootloader <1.00 e> released by "US_epad-10.6.1.14.10-20130801" A03
Starting Fastboot USB Download Protocol
All I have done is unlock the tablet. I was on the "Practice/Background" step in berndblb's (awesome) custom ROM guide before starting to load up fastboot and adb, when I saw the message in the upper left corner. When I go into RCK, "booting recovery kernel image" then appears under the error message. After 3-4 seconds I get the dead android with "error!" screen. When I power off, the tablet goes into normal bootup and the stock ROM still works perfectly fine.
Since it does, is there something I should do to resolve this issue BEFORE trying to push TWRP to the tablet? Just trying to be prudent...
Many thanks,
MM

Every Asus tablet I have seen has the "key driver not found" on boot - ignore it.
The dead Droid also is perfectly normal. It's the stock recovery not finding a firmware file to flash. Just keep going

berndblb said:
Every Asus tablet I have seen has the "key driver not found" on boot - ignore it.
The dead Droid also is perfectly normal. It's the stock recovery not finding a firmware file to flash. Just keep going
Click to expand...
Click to collapse
Brilliant, thanks. Now, let's see how this goes...
Cheers