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TF300 Wont boot past ASUS Screen

When I hold the power button plus Volume down key I am only getting two options. One is to wipe data and the other is to enter USB Fastboot mode. I just upgraded to the latest TWRP recovery and when I click the Wipe icon the TWRP splash screen shows up for a second. What I am hoping is that someone has some insight as to why the recovery icon has disappeared and how to get it back. Usually I am not the person asking the questions generally I am the one answering. If anyone has a clue it would definitively help. I did search and found a couple threads where something similar happened but there was no direct answer as how to fix it. Please help.

stedrocklp said:
When I hold the power button plus Volume down key I am only getting two options. One is to wipe data and the other is to enter USB Fastboot mode. I just upgraded to the latest TWRP recovery and when I click the Wipe icon the TWRP splash screen shows up for a second. What I am hoping is that someone has some insight as to why the recovery icon has disappeared and how to get it back. Usually I am not the person asking the questions generally I am the one answering. If anyone has a clue it would definitively help. I did search and found a couple threads where something similar happened but there was no direct answer as how to fix it. Please help.
Click to expand...
Click to collapse
I had a similar issue when I restored a TWRP backup I made with pre version 2.2.1. I was able to get help from the Dees_Troy on IRC.
Notes from IRC conversation
Whatever you restored from your pre TWRP 2.2.1 old backup is not a kernel. The dev that made the original device configuration files for the 300 couldn't find boot . So he just threw boot onto the wrong partition you need to install a working kernel via fastboot.
Steps that got me backup and running.
1. Flashed latest TWRP via fastboot. 'fastboot -i 0x0B05 flash recovery twrp.blob' rebooted
2. Downloaded a cm9 rom and opened the zip file and extract boot.blob . Flashed with 'fastboot -i 0x0B05 flash boot boot.blob' then rebooted.
Now TWRP recovery worked and I was able to install a new custom rom.
Backups made with version 2.2.1 or grater work correctly for me now.

Thank you Thank you Thank you!
brbjr said:
I had a similar issue when I restored a TWRP backup I made with pre version 2.2.1. I was able to get help from the Dees_Troy on IRC.
Notes from IRC conversation
Whatever you restored from your pre TWRP 2.2.1 old backup is not a kernel. The dev that made the original device configuration files for the 300 couldn't find boot . So he just threw boot onto the wrong partition you need to install a working kernel via fastboot.
Steps that got me backup and running.
1. Flashed latest TWRP via fastboot. 'fastboot -i 0x0B05 flash recovery twrp.blob' rebooted
2. Downloaded a cm9 rom and opened the zip file and extract boot.blob . Flashed with 'fastboot -i 0x0B05 flash boot boot.blob' then rebooted.
Now TWRP recovery worked and I was able to install a new custom rom.
Backups made with version 2.2.1 or grater work correctly for me now.
Click to expand...
Click to collapse
That was definitely the problem and I had been trying everything for the past two days. I appreciate you taking the time to reply.

asus tf300 help
brbjr said:
I had a similar issue when I restored a TWRP backup I made with pre version 2.2.1. I was able to get help from the Dees_Troy on IRC.
Notes from IRC conversation
Whatever you restored from your pre TWRP 2.2.1 old backup is not a kernel. The dev that made the original device configuration files for the 300 couldn't find boot . So he just threw boot onto the wrong partition you need to install a working kernel via fastboot.
Steps that got me backup and running.
1. Flashed latest TWRP via fastboot. 'fastboot -i 0x0B05 flash recovery twrp.blob' rebooted
2. Downloaded a cm9 rom and opened the zip file and extract boot.blob . Flashed with 'fastboot -i 0x0B05 flash boot boot.blob' then rebooted.
Now TWRP recovery worked and I was able to install a new custom rom.
Backups made with version 2.2.1 or grater work correctly for me now.
Click to expand...
Click to collapse
hey Im sry I never posted here b4 but I think this thread is the closest to the problem I have. My tf300 jad 4.1.1 ota update, i decided to change the rom since it seemed to have so many advantages. I installed TWRP correctly and according to the process I made later with debugfs tool I got root. It was all good but then I messed up, I installed Hydroponyc rom without backing up my rom and from then on, all hell broke loose. I can acces Clockworck (I changed TWRP for clock thought it might help......) and fastboot but any rom I install it doesnt go past the first asus logo that says device is unlocked on the upper left of the screen. Is there anyway u could help me please? Forgive my noobness I never posted here b4 I dont know if Im breaking any rule but i dont wanna wind up with a very expensive paper weight.

Did I brick it?
manegonzalez said:
hey Im sry I never posted here b4 but I think this thread is the closest to the problem I have. My tf300 jad 4.1.1 ota update, i decided to change the rom since it seemed to have so many advantages. I installed TWRP correctly and according to the process I made later with debugfs tool I got root. It was all good but then I messed up, I installed Hydroponyc rom without backing up my rom and from then on, all hell broke loose. I can acces Clockworck (I changed TWRP for clock thought it might help......) and fastboot but any rom I install it doesnt go past the first asus logo that says device is unlocked on the upper left of the screen. Is there anyway u could help me please? Forgive my noobness I never posted here b4 I dont know if Im breaking any rule but i dont wanna wind up with a very expensive paper weight.
Click to expand...
Click to collapse
I kinda have the same problem! Tried the boot.blob thing but, sadly, that didn't work for me ;(

solution
mizifih said:
I kinda have the same problem! Tried the boot.blob thing but, sadly, that didn't work for me ;(
Click to expand...
Click to collapse
hey I was super frustrated by this but I took some time out and then I found this post I tried it and it worked perfectly give it a shot
Looks like partition sizes chaged with the Asus update. I couldn't flash CM10 or any other rom as well (signature mismatch). If you installed the official 4.1.1 update, you need to manually install it again. Older versions and rollbacks wont work unless you push to some trickery mmcblk0p4, but that's another thread in itself
Download the JB update from Asus's website (if you still have it, that's fine) and extract the blob file. Put the blob file in teh same directory as your fastboot. Boot your TF300 into bootloader and enter:
fastboot -i 0x0B05 flash system blob
It will take a while to install, so be patient. Hope this helps

manegonzalez said:
hey I was super frustrated by this but I took some time out and then I found this post I tried it and it worked perfectly give it a shot
Looks like partition sizes chaged with the Asus update. I couldn't flash CM10 or any other rom as well (signature mismatch). If you installed the official 4.1.1 update, you need to manually install it again. Older versions and rollbacks wont work unless you push to some trickery mmcblk0p4, but that's another thread in itself
Download the JB update from Asus's website (if you still have it, that's fine) and extract the blob file. Put the blob file in teh same directory as your fastboot. Boot your TF300 into bootloader and enter:
fastboot -i 0x0B05 flash system blob
It will take a while to install, so be patient. Hope this helps
Click to expand...
Click to collapse
Doing it now. I'll update as soon as I finish it. Thank you very much for your reply.
UPDATE 1: I can see the shiny-silver ASUS and the progress circles, waiting to see what happen!
UPDATE 2: Setting up Jellybean now (Welcome setup)!
UPDATE 3: Looks like it's working!
Dude, thank you so much! I'll fool around with it. Is there a root method working already? I was wondering if there's a way to restore my backups, at least the ones I made for my gaming progress.

manegonzalez said:
hey Im sry I never posted here b4 but I think this thread is the closest to the problem I have. My tf300 jad 4.1.1 ota update, i decided to change the rom since it seemed to have so many advantages. I installed TWRP correctly and according to the process I made later with debugfs tool I got root. It was all good but then I messed up, I installed Hydroponyc rom without backing up my rom and from then on, all hell broke loose. I can acces Clockworck (I changed TWRP for clock thought it might help......) and fastboot but any rom I install it doesnt go past the first asus logo that says device is unlocked on the upper left of the screen. Is there anyway u could help me please? Forgive my noobness I never posted here b4 I dont know if Im breaking any rule but i dont wanna wind up with a very expensive paper weight.
Click to expand...
Click to collapse
you can flash the file named "blob" extracted from stock JB zip file(download from ASUS website,now there is only US SKU,10.4.2.29),it's about 7XX MB,then use the command "fastboot -i 0x0B05 flash system blob" (put the blob in the same directory with fashboot),It will restore your JB OS.till now,other rom can not work by this way.

jijitax4 said:
you can flash the file named "blob" extracted from stock JB zip file(download from ASUS website,now there is only US SKU,10.4.2.29),it's about 7XX MB,then use the command "fastboot -i 0x0B05 flash system blob" (put the blob in the same directory with fashboot),It will restore your JB OS.till now,other rom can not work by this way.
Click to expand...
Click to collapse
What if you can only boot to APX mode? I only have the option of using that because my unlocked bootloader got erased in the process of updating to JB. Is there a way to install a bootloader using fastboot? Or will it only work with an existing bootloader?
In other words, when I issue the fastboot command
fastboot -i 0x0B05 flash system blob
I get "waiting on device" and nothing happens after that.

Thank you, this worked !!!!!!

[Q] Can't fastboot / No recovery JB

I have an interesting problem:
I have a tf300t curently running JRO03C.ww_epad-10.4.2.17-20121018
I ended up here after an unsuccessful flash with twrp. Tried to recover my back up with no joy. At this time it would only boot twrp recovery, finally flashed stock via micro sdcard and got it to boot again! Only I had no root anymore, so I tried to boot into recovery and there was none. So next I tried to boot into bootloader and when I select fastboot, the tablet says starting "starting fastboot download protocol" but after nothing else happens. ADB looses it, and it just stops right there.
The good news is that I can still use the tablet, it boots and everything works fine but I have no root. I have searched and read and searched and read. I don't know if the reflash flashes the bootloader but that didn't seam to have any effect. If anybody could point me in the right direction I would sure appriciate the help.

there is a way on the TWRP instructions using terminal when you are in system

nitsuj79 said:
I have an interesting problem:
I have a tf300t curently running JRO03C.ww_epad-10.4.2.17-20121018
I ended up here after an unsuccessful flash with twrp. Tried to recover my back up with no joy. At this time it would only boot twrp recovery, finally flashed stock via micro sdcard and got it to boot again! Only I had no root anymore, so I tried to boot into recovery and there was none. So next I tried to boot into bootloader and when I select fastboot, the tablet says starting "starting fastboot download protocol" but after nothing else happens. ADB looses it, and it just stops right there.
The good news is that I can still use the tablet, it boots and everything works fine but I have no root. I have searched and read and searched and read. I don't know if the reflash flashes the bootloader but that didn't seam to have any effect. If anybody could point me in the right direction I would sure appriciate the help.
Click to expand...
Click to collapse
I saw on another site that with this tablet it will go into fastboot but wont popup as fastboot device on your computer, but you can still use fastboot commands. worked for me

mikaole said:
there is a way on the TWRP instructions using terminal when you are in system
Click to expand...
Click to collapse
You must have root permission for that method

imp3r10 said:
I saw on another site that with this tablet it will go into fastboot but wont popup as fastboot device on your computer, but you can still use fastboot commands. worked for me
Click to expand...
Click to collapse
No when I try to flash recovery it says waiting for device and nothing ever happens.

I seamed to have got it. I down graded to 10.4.2.9 and back to 13. plugged it to the computer and this time it installed drivers and that time I was able to flash recovery. I don't know what happened and it was probably something that I was doing wrong. But just incase that is what did the trick and it helps someone else, i wanted to be sure and follow up.

[Q] Unable to flash recovery.img after enabling nvflash.on a TF300T

I configured nvflash on a new unrooted, unlocked TF300T, running the 9.4.3.30 firmware by following the directions at. androidroot mobi t3_nvflash. The AndroidRoot9.4.0.30r01 bootloader and nvflash were installed and the tablet was successfully booted into APX mode, nvflash was bootstrapped using wheelie, and the bricksafe.img, factory-config.img and unlock-token.img files were generated and saved.
Unfortunately, I was not able to use fastboot to install clockworkmod recovery or enable root. Flashing was attempted initially using Windows XP and again later using Ubuntu 12.04, with the following result:
# fastboot -i 0x0B05 flash recovery recovery.img
sending 'recovery' (5306 KB)...
OKAY [ 2.443s]
writing 'recovery'...
OKAY [ 2.058s]
finished. total time: 4.500s
# fastboot -i 0x0B05 reboot
rebooting...
All seems well, but recovery does not install, the tablet does not reboot, and will not accept further flashboot commands. It has to be restarted by holding down the start button. On restart a blue line quickly flashes across the screen, but on boot to fastboot/recovery mode there is no icon to access recovery.
Device: TF300T Transformer Pad
Android Version 4.0.3;
Build Number: IML74.US_epad-9.4.3.30-201220604
Questions:
To what partition/folder is the recovery image flashed on the TF300T?
Has anyone ever actually used nvflash to unbrick a TF300T? If so will someone point me to instruction how to repair/restore the original/unlocked bootloader using nvflash, or something close?
Is there a procedure to install CWM recovery using nvflash?
Thank you for your help, any assistance is appreciated.

Some Hard Learned Advice
I'm still unable to flash a custom recovery, but the good news is that my tablet works although it's not rooted, and I have a functioning nvflash
If you want to avoid my problem, I recommend that you root your tablet before you install nvflash. Remember that at present, you can only install nvflash on a TF300T running ICS but, definitely do install nvflash. Follow the instructions from the folks at androidroot.mobi, but don't forget to root first.

listerism said:
I'm still unable to flash a custom recovery, but the good news is that my tablet works although it's not rooted, and I have a functioning nvflash
If you want to avoid my problem, I recommend that you root your tablet before you install nvflash. Remember that at present, you can only install nvflash on a TF300T running ICS but, definitely do install nvflash. Follow the instructions from the folks at androidroot.mobi, but don't forget to root first.
Click to expand...
Click to collapse
I believe you would want to follow the guide in the General section for the TF300 to upgrade from ICS to JB 4.1.1. Its called
[GUIDE]Upgrade your TF300t to Jellybean 4.1, root & remove bloatware[Noobproof]
Then update to the newest version of 4.1.1. Then finally put a version of TWRP that is compatible with the 4.1.1 bootloader on the device. Also when I Installed the recovery I used the "recovery.blob" file, not the .img

listerism said:
I configured nvflash on a new unrooted, unlocked TF300T, running the 9.4.3.30 firmware by following the directions at. androidroot mobi t3_nvflash. The AndroidRoot9.4.0.30r01 bootloader and nvflash were installed and the tablet was successfully booted into APX mode, nvflash was bootstrapped using wheelie, and the bricksafe.img, factory-config.img and unlock-token.img files were generated and saved.
Unfortunately, I was not able to use fastboot to install clockworkmod recovery or enable root. Flashing was attempted initially using Windows XP and again later using Ubuntu 12.04, with the following result:
# fastboot -i 0x0B05 flash recovery recovery.img
sending 'recovery' (5306 KB)...
OKAY [ 2.443s]
writing 'recovery'...
OKAY [ 2.058s]
finished. total time: 4.500s
# fastboot -i 0x0B05 reboot
rebooting...
All seems well, but recovery does not install, the tablet does not reboot, and will not accept further flashboot commands. It has to be restarted by holding down the start button. On restart a blue line quickly flashes across the screen, but on boot to fastboot/recovery mode there is no icon to access recovery.
Device: TF300T Transformer Pad
Android Version 4.0.3;
Build Number: IML74.US_epad-9.4.3.30-201220604
Questions:
To what partition/folder is the recovery image flashed on the TF300T?
Has anyone ever actually used nvflash to unbrick a TF300T? If so will someone point me to instruction how to repair/restore the original/unlocked bootloader using nvflash, or something close?
Is there a procedure to install CWM recovery using nvflash?
Thank you for your help, any assistance is appreciated.
Click to expand...
Click to collapse
Since you already have installed nvflash and have your files I'll try to answer with that in mind.
First I suggest using twrp of the latest version for ICS not cwm.
The partition for recovery is recovery. The commands you provided are correct (I do suggest using a blob file with fastboot - and twrp not cwm).
For unbrick with nvflash yes others have here is a link with the commands needed.
Remember you only have to flash what is needed to recover your tablet.

Did you perhaps download the wrong version of recovery? There is specific versions for ICS and JB 4.1.1 and JB 4.2.1. However I think of you use a blob instead it may work. But as above posters said, I would update to the version of stock android that you want. Cuz when you update your going to loose root and recovery anyways so why bother putting it on there? So I wouldn't flash anything till you are on the version you want to root. Also it will be safer to upgrade with stock recovery. TONS of people have bricked by updating to 4.2.1 with an incompatible recovery. You've been warned.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

Nevermind. I need to read entire posts...

No USB icon
Hi Guys,
I have 4.2.1 installed and want to move up to 4.2.2 however i now notice that when I try to boot back into recovery I have no USB icon to reinstall TWRP. I used TWRP 2.5 to install 4.2.1. Can someone explain how I can get TWRP back onto the system and get my USB icon back so I can keep up to date.
Your assistance will be gratefully appreciated.
Cheers
Asus TF300T

The 4.2 bootloader doesn't have a separate fastboot mode. As soon as you're in the bootloader, fastboot starts. There's no icon to select because it's already in fastboot mode.

speye007 said:
Hi Guys,
I have 4.2.1 installed and want to move up to 4.2.2 however i now notice that when I try to boot back into recovery I have no USB icon to reinstall TWRP. I used TWRP 2.5 to install 4.2.1. Can someone explain how I can get TWRP back onto the system and get my USB icon back so I can keep up to date.
Your assistance will be gratefully appreciated.
Cheers
Asus TF300T
Click to expand...
Click to collapse
The new 4.2 bootloader has no usb icon. When you enter the bootloader do not press any keys you will automatically enter usb mode. Watch the upper left for a message showing fastboot started..
---------- Post added at 10:34 AM ---------- Previous post was at 10:33 AM ----------
EndlessDissent said:
The 4.2 bootloader doesn't have a separate fastboot mode. As soon as you're in the bootloader, fastboot starts. There's no icon to select because it's already in fastboot mode.
Click to expand...
Click to collapse
You were to quick for me that time.

tobdaryl said:
The new 4.2 bootloader has no usb icon. When you enter the bootloader do not press any keys you will automatically enter usb mode. Watch the upper left for a message showing fastboot started..
---------- Post added at 10:34 AM ---------- Previous post was at 10:33 AM ----------
You were to quick for me that time.
Click to expand...
Click to collapse
Thanks I'll let you know it goes

speye007 said:
Thanks I'll let you know it goes
Click to expand...
Click to collapse
Well thanks that did work however I now have and issue with TWRP wanting a password and I've tried the
http://forum.xda-developers.com/showthread.php?t=2187982
Click to expand...
Click to collapse
fix but I get a dual screen of TWRP and can't do a thing with it is there a way that I can wipe the unit and start again this is getting frustrating and from what I can see no one from TWRP is offereing any suggestions to fix this issue either.....very frustrating as this is my daily
Your assistance would be gratefully appreciated
Cheers

speye007 said:
Well thanks that did work however I now have and issue with TWRP wanting a password and I've tried the fix but I get a dual screen of TWRP and can't do a thing with it is there a way that I can wipe the unit and start again this is getting frustrating and from what I can see no one from TWRP is offereing any suggestions to fix this issue either.....very frustrating as this is my daily
Your assistance would be gratefully appreciated
Cheers
Click to expand...
Click to collapse
The reason no one from TWRP is fixing it is because there's nothing to fix. It wasn't a TWRP bug. It was ASUS's bug, and they fixed it in the most recent OTA update. I would suggest using fastboot to flash back to stock to get your stock recovery back, then update to the most recent OTA, then you can flash TWRP back.
Edit: What I just said was actually kind of in the OP of the thread to which you linked, in bright red letters. It said that you need to be on the very latest OTA for that version of TWRP to work. In fact, those were, more-or-less the very first words in the post.

EndlessDissent said:
The reason no one from TWRP is fixing it is because there's nothing to fix. It wasn't a TWRP bug. It was ASUS's bug, and they fixed it in the most recent OTA update. I would suggest using fastboot to flash back to stock to get your stock recovery back, then update to the most recent OTA, then you can flash TWRP back.
Edit: What I just said was actually kind of in the OP of the thread to which you linked, in bright red letters. It said that you need to be on the very latest OTA for that version of TWRP to work. In fact, those were, more-or-less the very first words in the post.
Click to expand...
Click to collapse
Hi sorry its taken me time to get back. I've had some issues with this I now get a double TWRP screen that I can't do anything with and when I can get back to a normal screen it asks for a password all the time and I've tried to factory reset from inside (not from twrp) and it does nothing at all
So I'd like to try and reset back to factory and start again if thats possible? And is there a good tutorial on this?
Cheers & thank you for your assistance

speye007 said:
Hi sorry its taken me time to get back. I've had some issues with this I now get a double TWRP screen that I can't do anything with and when I can get back to a normal screen it asks for a password all the time and I've tried to factory reset from inside (not from twrp) and it does nothing at all
So I'd like to try and reset back to factory and start again if thats possible? And is there a good tutorial on this?
Cheers & thank you for your assistance
Click to expand...
Click to collapse
If you want to go back to stock, just flash the stock firmware in fastboot. There are lots of guides for flashing stock ROMs throughout the forum.

EndlessDissent said:
If you want to go back to stock, just flash the stock firmware in fastboot. There are lots of guides for flashing stock ROMs throughout the forum.
Click to expand...
Click to collapse
I found the issue you need to go to this version of TWRP (which I may add is not on the download list fromTWRP) http://goo.im/devs/OpenRecovery/tf300t/openrecovery-twrp-2.4.4.0-tf300t-4.2.blob
I now have TWRP working and I'm running 10.6.1.8 however I find that I can not factory reset or use TWRP to upgrade firmware to 10.6.1.15 or any other ROM. The device says "Device is unlocked" & I'm also having an issue trying to locate a good tutorial on how to flash new firmware or kernel with fastboot. If anyone knows of a great tutorial that is easy to follow and also how I can obtain any of the required .img files that would be great.
This is getting frustrating now not being able to flash anything at all (angry)
I'm also getting an error message when I try to use the Asus unlock apk (An unknown error occurs,which maybe a network connection issue. Please wait and try again later) yes done toooo many times.
I've now even tried to flash CWM instead of TWRP and nothing ....the device boots fine and works fine I just can not factory reset, or install a new or updated rom from TWRP.
Message from TWRP :
Updating partition details...
Simulating actions...
Updating partition details...
and TWRP says Successful but nothing happens
can someone help me out here before I rip what little hair I still have out ggggrrrrrrrr

Recovery failing to flash

So I flash the stock rom on it without thinking and now it wont let me flash a recovery to the tablet threw fastboot or goomanager and it wont update throguh asus update but its booting fine and wont take any updates at all i need help being pointed in the right direction!

I flashed the wrong bootloader i think and how do i flash the correct bootloader without a recover?

in fastboot im getting the error: cannot load 'file name' :no error weather its cm or twrp it wont load it and i dont know what to do please help

First of all it would be important to know what bootloader you are actually on. You do not want to flash a recovery that is not compatible with your bootloader!
So boot into the bootloader with Volume Down and POWER and read the tiny script. From there select the Android with Volume Down and boot back to system with Volume Up.
And then please report in detail what you are trying to do in fastboot, which commands you use etc.
Without knowing what you are doing we cannot tell you what you are doing wrong.....
First step: In fastboot command: fastboot devices - Do you see the serial number of your tab?

berndblb said:
First of all it would be important to know what bootloader you are actually on. You do not want to flash a recovery that is not compatible with your bootloader!
So boot into the bootloader with Volume Down and POWER and read the tiny script. From there select the Android with Volume Down and boot back to system with Volume Up.
And then please report in detail what you are trying to do in fastboot, which commands you use etc.
Without knowing what you are doing we cannot tell you what you are doing wrong.....
First step: In fastboot command: fastboot devices - Do you see the serial number of your tab?
Click to expand...
Click to collapse
bootloader version is us_epad-10.4.4.20-20121026
with a stock rom of 4.1.1
and trying to undo the rom cause im trying to put a stock 4.2.2 on it to get the drivers back on it from the stock rom.
in fastboot i just need to get a twrp installed and i can undo my mess

Skittleskitty said:
bootloader version is us_epad-10.4.4.20-20121026
with a stock rom of 4.1.1
and trying to undo the rom cause im trying to put a stock 4.2.2 on it to get the drivers back on it from the stock rom.
in fastboot i just need to get a twrp installed and i can undo my mess
Click to expand...
Click to collapse
So you are on an ICS bootloader with a JB rom... How the hell did you manage to do that?
You did not answer my question about fastboot. What you tried and what did not work.
But anyway, how I would proceed, just to get you back into safe territory, is to download the latest Asus firmware 10.6.1.14.10, unzip the downloaded file once and copy the resulting zip to the root of your internal SD.
Reboot, and hopefully the stock recovery will recognize the update file and flash you to JB 4.2.1 (which BTW is the latest version for our tabs - there never was, and probably never will be a 4.2.2). Flashing the stock firmware will replace the bootloader.
So from there you just have to get fastboot working, flash the latest TWRP and then the custom rom of your choice COMPATIBLE with your bootloader and recovery.
If that doesn't work we have to try something else. But try this first and report.

berndblb said:
So you are on an ICS bootloader with a JB rom... How the hell did you manage to do that?
You did not answer my question about fastboot. What you tried and what did not work.
But anyway, how I would proceed, just to get you back into safe territory, is to download the latest Asus firmware 10.6.1.14.10, unzip the downloaded file once and copy the resulting zip to the root of your internal SD.
Reboot, and hopefully the stock recovery will recognize the update file and flash you to JB 4.2.1 (which BTW is the latest version for our tabs - there never was, and probably never will be a 4.2.2). Flashing the stock firmware will replace the bootloader.
So from there you just have to get fastboot working, flash the latest TWRP and then the custom rom of your choice COMPATIBLE with your bootloader and recovery.
If that doesn't work we have to try something else. But try this first and report.
Click to expand...
Click to collapse
thank you so much that fixed it!!

ok i did all that but it removed fastboot what do i do to get it back?

Skittleskitty said:
ok i did all that but it removed fastboot what do i do to get it back?
Click to expand...
Click to collapse
Read the text in the upper left corner - current bootloaders enable fastboot in the bootloader menu automatically.

ok i got fastboot working and now it says when i got to flash the recovery it says error cannot open twrp.blob even though its the correct file.

Skittleskitty said:
ok i got fastboot working and now it says when i got to flash the recovery it says error cannot open twrp.blob even though its the correct file.
Click to expand...
Click to collapse
Then maybe it's not in your current directory.

Skittleskitty said:
ok i got fastboot working and now it says when i got to flash the recovery it says error cannot open twrp.blob even though its the correct file.
Click to expand...
Click to collapse
I think your tablet would be a lot safer if you did some reading here: http://lmgtfy.com/?q=fastboot+tutorial

berndblb said:
I think your tablet would be a lot safer if you did some reading here: http://lmgtfy.com/?q=fastboot+tutorial
Click to expand...
Click to collapse
i found that and have been reading it but fastboot still cant read the twrp.blob even though its in the directory with fastboot.

ok ive re installed fastboot and adb sdk and did the environment variable path and it still wont recognize the blob it wont recognize cwm .img files ether and what does key driver not found..booting os

Skittleskitty said:
i found that and have been reading it but fastboot still cant read the twrp.blob even though its in the directory with fastboot.
Click to expand...
Click to collapse
It has to be in your *current* directory.

_that said:
It has to be in your *current* directory.
Click to expand...
Click to collapse
thankyou it moved directorys on me that was the issue

TF300T 4.2 TWRP Error

Hi XDA,
I am a complete noob, and this is my first time posting, so bear with me.
Some time ago I rooted and unlocked my TF300 with SuperSu. Recently I wanted to upgrade to 4.4 kitkat. However, my Tablet was stuck at Andriod 4.1 because of the the unlock.
I went to manually update my TF via the Asus website. I installed the 10.6.1.8 using my TWRP 2.5, and Oem 4.1 OS. Installation worked just fine. After install, I booted up and I had 4.2 with everything working correctly.
Next step was to install TWRP 2.7.0.1. I reset my TF and went into RCK to see something went wrong when updating.
My TWRP will not load, and I get the Android on his back with the red triangle when I try to enter RCK.
Thanks in advance!!

I managed to install 10.6.1.27, but it did not change anything with my boot loader.
I downloaded motochopper, but that didn't seem to work, just told me my abt was out of date. SuperSu isn't working now either, "No Binary, There is a problem."
How do I install TWRP 2.7 with no boot loader? Please help.

TallMilk said:
I managed to install 10.6.1.27, but it did not change anything with my boot loader.
I downloaded motochopper, but that didn't seem to work, just told me my abt was out of date. SuperSu isn't working now either, "No Binary, There is a problem."
How do I install TWRP 2.7 with no boot loader? Please help.
Click to expand...
Click to collapse
Most people just install TWRP via fastboot like
Code:
fastboot -i 0x0B05 flash recovery twrp.blob
You could try using other root methods, like Framaroot or Kingo. I think Kingo was reported to work on the latest stock version.

cmendonc2 said:
Most people just install TWRP via fastboot like
Code:
fastboot -i 0x0B05 flash recovery twrp.blob
You could try using other root methods, like Framaroot or Kingo. I think Kingo was reported to work on the latest stock version.
Click to expand...
Click to collapse
I will look into that, but I am pretty sure I was already rooted, unless losing my boot loader means I am no longer rooted.
Another thing, I can't find a twrp.blob for 2.7, just a zip. I have one for 2.5, but that is useless because I already have 4.2. I also have not been able to find a working link to fastboot.
If anyone could give me a link to the fastboot or a link to a tutorial, that would be amazing. I have done my research, but all the lingo and different methods can be mind bending.
Thanks

TallMilk said:
I will look into that, but I am pretty sure I was already rooted, unless losing my boot loader means I am no longer rooted.
Another thing, I can't find a twrp.blob for 2.7, just a zip. I have one for 2.5, but that is useless because I already have 4.2. I also have not been able to find a working link to fastboot.
If anyone could give me a link to the fastboot or a link to a tutorial, that would be amazing. I have done my research, but all the lingo and different methods can be mind bending.
Thanks
Click to expand...
Click to collapse
You can get the img (which substitutes as a blob) from extracting it from the TWRP 2.7 zip file.
1) You will need ADB and fastboot for this: http://forum.xda-developers.com/showthread.php?p=42407269. I would suggest keeping the tablet at least at 50% battery.
2) Install Naked Drivers. This may be optional for you. If you can proceed to the next step without, you won't need it.
3) Enter fastboot by rebooting and holding down the power button. TF300 enters fastboot automatically since this is 4.2 BL.
4) Next we need to enter a command. In side the ADB folder, hold shift and right click. Then select Open command window here.
first check to make sure the device is connected:
Code:
fastboot devices
The device serial number should be listed.
enter command:
Code:
fastboot flash recovery twrp.img -i 0x0b05
Blue bar on device will fill. Be patient.
5) Reboot the Device back into Android. This is an important step.
6.) Go back into TWRP and install what you want.

You are amazing. I will give it a try tonight and report back!

cmendonc2 said:
You can get the img (which substitutes as a blob) from extracting it from the TWRP 2.7 zip file.
1) You will need ADB and fastboot for this: http://forum.xda-developers.com/showthread.php?p=42407269. I would suggest keeping the tablet at least at 50% battery.
2) Install Naked Drivers. This may be optional for you. If you can proceed to the next step without, you won't need it.
3) Enter fastboot by rebooting and holding down the power button. TF300 enters fastboot automatically since this is 4.2 BL.
4) Next we need to enter a command. In side the ADB folder, hold shift and right click. Then select Open command window here.
first check to make sure the device is connected:
Code:
fastboot devices
The device serial number should be listed.
enter command:
Code:
fastboot flash recovery twrp.img -i 0x0b05
Blue bar on device will fill. Be patient.
5) Reboot the Device back into Android. This is an important step.
6.) Go back into TWRP and install what you want.
Click to expand...
Click to collapse
Installed adb fastboot. However, my device does not automatically go into fastboot, I still have to hold down the volume key.
Once I am in fastboot usb (with the 3 icons), I fastboot successfully and get the serial number, then when I type the 'fastboot flash recovery twrp.img -i 0x0b05' command I get this error: cannot load 'twrp.img' : No error
I am attemping to use the 2.7.0.1 twrp from the 4.4.2 page. I have extracted the recovery.img (tried renaming to twrp and left it the same) and placed it in the root of both my external and internal sd.
I have now tried it with .zips .img .blob and I receive the same error everytime. Not sure what I am doing wrong now.

TallMilk said:
Installed adb fastboot. However, my device does not automatically go into fastboot, I still have to hold down the volume key.
Once I am in fastboot usb (with the 3 icons), I fastboot successfully and get the serial number, then when I type the 'fastboot flash recovery twrp.img -i 0x0b05' command I get this error: cannot load 'twrp.img' : No error
I am attemping to use the 2.7.0.1 twrp from the 4.4.2 page. I have extracted the recovery.img (tried renaming to twrp and left it the same) and placed it in the root of both my external and internal sd.
I have now tried it with .zips .img .blob and I receive the same error everytime. Not sure what I am doing wrong now.
Click to expand...
Click to collapse
Put the twrp.img into your ADB folder, where you installed it. Then run the next command.

cmendonc2 said:
Put the twrp.img into your ADB folder, where you installed it. Then run the next command.
Click to expand...
Click to collapse
Awesome! Worked like a charm. twrp 2.7.0.1 installed perfectly.
Then I tried to flash the cyanogenmod. Said it installed fine, but it just gets stuck on the loading screen...

I am trying to do exactly what TallMilk is doing...put Cyanogenmod on my tablet. It is my understanding that I have to unlock my bootloader though? Which I have tried doing a million different ways with the Asus Unlock tool which always gives me an error.
If I follow the instructions posted above I will be able to flash Cyanogenmod without unlocking my bootloader?

SilentSpartan said:
I am trying to do exactly what TallMilk is doing...put Cyanogenmod on my tablet. It is my understanding that I have to unlock my bootloader though? Which I have tried doing a million different ways with the Asus Unlock tool which always gives me an error.
If I follow the instructions posted above I will be able to flash Cyanogenmod without unlocking my bootloader?
Click to expand...
Click to collapse
Finally got it to work. I had to do a wipe first, read about old roms interfering with new installations.
SilentSpartan, I used SuperSU last year to root and unlock my tablet when it was still a 4.0 android to flash to 4.1. This recent update was from 2.5 TWRP on a rooted device running 4.2. When I installed 4.2, it blew away my TWRP, and I had to flash the new TWRP 2.7.0.1.
That flash from OEM fastboot to TWRP 2.7.0.1 is what I needed help with.

TallMilk said:
Finally got it to work. I had to do a wipe first, read about old roms interfering with new installations.
SilentSpartan, I used SuperSU last year to root and unlock my tablet when it was still a 4.0 android to flash to 4.1. This recent update was from 2.5 TWRP on a rooted device running 4.2. When I installed 4.2, it blew away my TWRP, and I had to flash the new TWRP 2.7.0.1.
That flash from OEM fastboot to TWRP 2.7.0.1 is what I needed help with.
Click to expand...
Click to collapse
Damn, so I'm screwed. Why does Asus have to such so much...? You can no longer unlock afaik.

SilentSpartan said:
I am trying to do exactly what TallMilk is doing...put Cyanogenmod on my tablet. It is my understanding that I have to unlock my bootloader though? Which I have tried doing a million different ways with the Asus Unlock tool which always gives me an error.
If I follow the instructions posted above I will be able to flash Cyanogenmod without unlocking my bootloader?
Click to expand...
Click to collapse
You're going to have to unlock no matter what. Did you try both v7 and v8 of the unlocker and calling Asus Support to tell them to put your serial number back into the database (get a manager)?

cmendonc2 said:
You're going to have to unlock no matter what. Did you try both v7 and v8 of the unlocker and calling Asus Support to tell them to put your serial number back into the database (get a manager)?
Click to expand...
Click to collapse
I've tried every firmware and unlock tool combination. Nothing works. I sent them an email a day ago. Depending on there response, maybe I'll try calling. I'm so fed up with this tablet, I'm about to throw it out my window. $400 POS. :good:

SilentSpartan said:
I've tried every firmware and unlock tool combination. Nothing works. I sent them an email a day ago. Depending on there response, maybe I'll try calling. I'm so fed up with this tablet, I'm about to throw it out my window. $400 POS. :good:
Click to expand...
Click to collapse
Did you ever get your tablet fixed? I am having some problems myself after a miserable m9 update.