yashsingh1/xdaforums huggingface dataset:
[Transformer TF300T Q&A, Help & Troubleshooting] lomoski:
No, I was not. I also have the unrecoverable bootloader error but I have a working device. I downloaded the latest firmware, followed the steps through fastboot and the same thing keeps happening where as soon as you try to enter a command through fastboot the green box stops flashing over rck and even though the cmd prompt window tells you something is going on nothing happens on the tablet end. It freezes. hard reboot and you end up back with a normal working device, no changes and a corrupt bootloader.
[Transformer TF300T Q&A, Help & Troubleshooting] dilfatx:
I have same issue.. has anybody managed to get a fix for this?
[Transformer TF300T Q&A, Help & Troubleshooting] mister363:
I've same problem, how can i fix it?

i've a working device but without recovery mod! I can't flash anything via fastboot because it freezes, i always have "Unrecoverable bootloader error" when press RCK.

Can somebody help me? :(

Thanks in advance ;)
[Transformer TF300T Q&A, Help & Troubleshooting] rsox:
I was having this problem earlier - a new bootloader came out when they went to 4.2, but most of the instructions online don't reflect this. You need an updated recovery image, which usually has the name recovery-jb.img instead of recovery.img. When you're searching make sure the instructions mention 4.2 and jelly bean.

However, I've only managed to get one step further - have now get into clockworkmod recovery, but as with the OP I then couldn't mount anything inside CWM. I tried another instruction set which involved unzipping the ROM and using adb to push over the .blob. This hasn't worked and I have now got a pretty much bricked device - it either bootloops on the asus splash screen, or loads into CWM.

I've found that even when youre in CWM you can type "adb reboot-bootloader" into the terminal, which forces the RCK/android/wipe data page and fastbook to appear. I've also tried to download the latest stock firmware from ASUS, unzipped it to get the stock .blob out and into my fastboot directory, then run "fastboot -i 0x0B05 flash staging blob" in the terminal, as per mikaole's suggestion. This takes a while to push over the 80mb .blob, but after it says it's staged it says "done" then nothing happens and it's still bricked. hmm.
[Transformer TF300T Q&A, Help & Troubleshooting] P05TMAN:
No one's figured this out? I tried flashing the blob file and my system won't boot at all
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
My solution

I have the same on my TF300t and A700 - but it seems i just managed to get my TF300t back

i tried all fastboot (reflashing recovery, boot, system etc) no dice - especially since writing system was done after 3 secs all the time.

Here how i restored my TF300T JB

download your appropriate lates firmware from Asus (WW, US etc.) and extract the zip twice so you have your blob file

install your device drivers if needed (i used Google SDK ones) (and as a Tip Win8 sucks for Fastboot stuff so try to get Win7 Vista XP for this)

Reset your device with a paperclip/needle (about 2 cm down of your sdcard slot) and hold vol-down to enter fastboot

(the folowing i did at least 10 times already but didn't erase misc)

fastboot erase system

fastboot erase recovery

fastboot erase userdata

fastboot erase boot

fastboot erase misc

fastboot erase cache

fastboot -i 0x0B05 flash system c:\adb\TF300t\blob (this is my path - your's may vary depending where you stored your blob) ((also this was the first time i saw the loading bar while flashing)*

fastboot -i 0x0B05 reboot

* it also took a lot longer as it should:

C:\>fastboot -i 0x0B05 flash system c:\adb\TF300t\blob

erasing 'system'...

OKAY [ 1.695s]

sending 'system' (800935 KB)...

OKAY [133.121s]

writing 'system'...

OKAY [153.973s]

finished. total time: 288.789s

im now setting my tab up to get back to CM (which initially caused this sh1theap due to autoupdate error, same as my A700 got bricked )

hope i could help you out!

cheers

-Buster
[Transformer TF300T Q&A, Help & Troubleshooting] BigK:
IT WORKS!!!

Thank you very much. It works beautifully.
[Transformer TF300T Q&A, Help & Troubleshooting] mister363:
Now i' m busy because of my Job. But next week i want try your method.

I hope it work for my device! :)

Inviato dal mio GT-I9100 con Tapatalk 2
[Transformer TF300T Q&A, Help & Troubleshooting] P05TMAN:
Did your tablet seem to freeze after flashing via fastboot? When I push blob, the console shows that it wrote, but then fastboot on the tablet freezes & I have to manually reboot, putting me right back to the drawing board.
[Transformer TF300T Q&A, Help & Troubleshooting] mister363:
Until now my device freezes. Fastboot seem to work but nothing happens. :banghead:

Inviato dal mio GT-I9100 con Tapatalk 2
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
nope. do you use the original cable on usb 2.0 and connected to your pc not a usb hub? should work. if not try a diffrent pc - sometimes usb chipsets make problems.
[Transformer TF300T Q&A, Help & Troubleshooting] d3fiant:
I get invalid argument to all of the erase attempts and the minute I try to push the blob the flashing green icon in fastboot mode on the tablet stops. The command windows says the flash went fine but the tablet is unresponsive and must be reset. Infact any fastboot command that pushed something to the tablet causes it to look up ( indicated by the green flashing RCK icon freezing on whatever phase of green it had at the time)

E:\asus>fastboot -i 0x0B05 flash system e:\asus\blob

erasing 'system'...

OKAY [ 1.975s]

sending 'system' (800935 KB)...

OKAY [134.565s]

writing 'system'...

OKAY [ 2.040s]

finished. total time: 138.583s

I think its time to bin this doorstop and break something new :)
[Transformer TF300T Q&A, Help & Troubleshooting] P05TMAN:
Mine does this same thing.....think it's done for?
[Transformer TF300T Q&A, Help & Troubleshooting] P05TMAN:
Buster99, your instructions saved my device. I missed erasing /misc even though you put it in the directions and my tablet's back! I owe you.
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
How did you fix your tablettttttt?????????? Help me
[Transformer TF300T Q&A, Help & Troubleshooting] alponte:
You must explain us where your tf300t blocks. Does it enter in the bootloader? or it stop on the Asus screen? does it enter in recovery?
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
It loops on the Asus logo and when I try to enter recovery it still loops
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
well you already erased recovery - but sometimes there are still remains in other partitions.

as you still can access fastboot go for the whole thing - it only erases the partitions (which you can't access at the moment) and provides you with a clean tablet on which you then can flash the stock rom - this is kind of imporant since while flashing it checks all partitions and flashes everything properly.

after that you can flash your recovery and custom rom (but first boot once into stock!)

GL!

do you still have an installed recovery? what about fastboot? can you access that? maybe try reflashing just a recovery first - otherwise try the complete reset to get it working again.

if you still can boot into your rom - flash the recovery via terminal or adb

GL!

Cheers

buster
[Transformer TF300T Q&A, Help & Troubleshooting] fred_bra:
So, I did everything, all the erasing and flashing the stock blob system file from Asus. It now boots into a stock device. BUT, I cannot get into recovery. When I hit RCK, I get a dead Android with a red triangle with an exclamation point in the middle. I did the whole procedure twice already, and the result is the same. Apparently, it was all OK, as you can see below:

C:\Users\Frederico\adb>fastboot devices

015d123ec6241809 fastboot

C:\Users\Frederico\adb>fastboot devices

015d123ec6241809 fastboot

C:\Users\Frederico\adb>fastboot erase system

******** Did you mean to fastboot format this partition?

erasing 'system'...

OKAY [ 2.915s]

finished. total time: 2.915s

C:\Users\Frederico\adb>fastboot erase recovery

erasing 'recovery'...

OKAY [ 1.936s]

finished. total time: 1.936s

C:\Users\Frederico\adb>fastboot erase userdata

******** Did you mean to fastboot format this partition?

erasing 'userdata'...

OKAY [ 24.553s]

finished. total time: 24.553s

C:\Users\Frederico\adb>fastboot erase boot

erasing 'boot'...

OKAY [ 0.530s]

finished. total time: 0.530s

C:\Users\Frederico\adb>fastboot erase misc

erasing 'misc'...

OKAY [ 0.849s]

finished. total time: 0.849s

C:\Users\Frederico\adb>fastboot erase cache

******** Did you mean to fastboot format this partition?

erasing 'cache'...

OKAY [ 2.552s]

finished. total time: 2.552s

C:\Users\Frederico\adb>fastboot -i 0x0B05 flash system blob

erasing 'system'...

OKAY [ 1.690s]

sending 'system' (800931 KB)...

OKAY [136.954s]

writing 'system'...

OKAY [154.526s]

finished. total time: 293.172s

C:\Users\Frederico\adb>fastboot -i 0x0B05 reboot

rebooting...

finished. total time: 0.020s

C:\Users\Frederico\adb>

Any ideas? Thanks!
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
I can't boot into anything at all it just loops and loops and loops on the Asus logo
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
Well, if stock is working at least its working.

try to flash recovery with terminal emulator or an app like flashify and see if that works.

GL!

let the battery run dry and let it be empty for 6 hours then recharge it and boot it up via the reset button and see if that works.

Also do all fastboot stuff without the keyboard attached

GL!

cheers

Buster
[Transformer TF300T Q&A, Help & Troubleshooting] fred_bra:
TF300T fixed!

SUCCESS !!!! Flashing TWRP 2.7.0.1 via fastboot worked! Then I flashed OmniROM again, gapps, supersu, and got my TF300T back to the game!! Thank you so much! Users like you make the internet a better place! Thanks! Thanks!
[Transformer TF300T Q&A, Help & Troubleshooting] sbdags:
So you can get to the bootloader then?
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
:confetti: :D

glad to hear it - enjoy! :)

cheers

Buster

---------- Post added at 01:46 PM ---------- Previous post was at 01:43 PM ----------

yep, good question, sounds to me that fastboot should be accessible.
[Transformer TF300T Q&A, Help & Troubleshooting] Ladha:
Thanks!

Thankyou! i was able to fix my tf300t back again! :highfive:
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
glad to hear it :)
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
I cannot get it to get into fastboot or recovery every time it just reboots and hangs at the asus logo...anyone know how to fix this?
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
did you already try to access fastboot via the reset button?
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
Yes I tried that and it won't go into it it just loops on the Asus logo.
[Transformer TF300T Q&A, Help & Troubleshooting] Sir Gallivant:
I will have my sister kiss you!

Cheers indeed, mate! That was exactly what the doctor ordered, currently back to Asus stock after being stuck in boot loop, no matter which CM rom or CWM recovery I tried out.

Had ADB and Fastboot working, but nothing helped until I tried this.

I will have my sister come round and kiss you when she gets out of prison :p

Thank you very much.
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
lol :)

sure thing

cheers

buster
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
I don't know what to do at this point because I cannot get the tablet to go into fastboot and it always is stuck at the ASUS logo
[Transformer TF300T Q&A, Help & Troubleshooting] aurel33:
Adb or APX mode work ?
[Transformer TF300T Q&A, Help & Troubleshooting] shatterstar78:
Thanks i'll give that a try, but if that fails is their a guide on how to use NVflash to restore my backup? All I can find is how to backup using NVflash but nothing on restoring it.
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
You have your nvflash blobs squared away?

Read 3rd paragraph in red...

http://xdaforums.com/showthread.php?t=2538028
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
APX mode works but I don't have any NVflash blobs...
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
Sorry, but the nvflash blobs are device specific. If you did not generate them when the tablet was working, APX mode is of no use to you.
[Transformer TF300T Q&A, Help & Troubleshooting] aurel33:
Have you tried this: http://xdaforums.com/showthread.php?t=2034866 ?

Only 6. if there is no other resort!

6. remove cover from unit, disconnect battery, press and hold volume down, reconnect battery!

or

7. Another way:- Provided by daws

Power off the tablet and don't touch the power button again.

Connect USB cable to tablet but not to PC yet.

Press volume down and then connect USB cable to PC.

or - no need to hold volume with these

8. adb reboot bootloader

or

9. fastboot -i 0x0B05 reboot-bootloader

or

10. from terminal - you must be rooted for this to work

su

reboot bootloader
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
My stupid parents confiscated all my computers and tablets so I won't be able to test it. I hate them.
[Transformer TF300T Q&A, Help & Troubleshooting] fbigboss:
Thnks buddy it did work for my tab!:good::good::good:
[Transformer TF300T Q&A, Help & Troubleshooting] ryantyre:
bricked - unrec????

Hello guys and gals, so i have hard bricked my tablet and can only access apx mode. So of course i understand that without a prior backup made with NVFLASH i am probably out of luck.

With that said, i do have a question for a seasoned developer. I understand the nvflash blob has to be for "your specific device" but is there a way to say, use the blob from someone elses nvflash blob if you change the serial number on your device to the one that the blob came from? I thought it may be possible becase i saw the command in the "help" section in NVFLASH "cmd #38" "--internaldata" "used to flash the sku-info, serial-id,mac-id,prod-id"

so i thought it may be possible to kinda clone the device the blob came from so that you can use the blob file through NVFLASH

does any of this make sense?

im just trying to think outside the box here ( i have no clue how the blob files are generated or what nvflash looks for when flashing a blob)

has anyone used this command before?

PS - i know this is in the wrong section but none of the "bricked" threads have been touched for a while so i felt i might get some attention here (bad or good)
[Transformer TF300T Q&A, Help & Troubleshooting] sbdags:
I answered one of your other threads ;)

Unfortunately if you only have APX and no NVFlash backup blobs it is not possible to restore. :( Your only choice is to replace the motherboard or buy a new device....
[Transformer TF300T Q&A, Help & Troubleshooting] t3chwizard:
This is so stupid.... Why can't Asus have a download mode like Samsung does, or something to fix your device without needing device specific files to fix it. It makes no sense. This sucks so much.
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
to be honest I prefer devices that don't use a special way to flash stuff. asus went the nexus route adb/fastboot and apx mode. fully supported by android sdk.

samsung and other use their own way to flash things and are sometimes worse than fastboot. trust me. i had to go through that with my s4.

but if you decide to not get a new mobo check the g pad 8.3 its about 150 bucks with decent hardware thats why I got it as well and my tf300 is only a music player now.

cheers

buster
[Transformer TF300T Q&A, Help & Troubleshooting] thefuzz4:
Thank you for this, it helped me fix my wifes tablet which was stuck in a boot loop. I even tried before I found this just flashing the asus blob but no love. Its now running CM 11 M8 and is quite happy. Thanks.
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
glad to hear.

enjoy

cheers

buster
[Transformer TF300T Q&A, Help & Troubleshooting] xxxericxxx:
So I bought one from eBay that said it could only go to cwm for $60 bucks in hopes to make it usable for the wife, thanks to you, I was able to not only make it usable, but its running the latest greatest crombikk f2fs. Thanks again.
[Transformer TF300T Q&A, Help & Troubleshooting] lvrijn:
So I was flashing today again 2x TF300 for the touch fw update.

The first one was ok, second one I have problems.

After flashing twrp.blob, i fully rebooted, booted up twrp and got the screen with enter password?

I tried to wipe all. Now volume up + power is not starting fastboot, it always boots up in TWRP with enter password.

If I enter via PC : adb reboot bootloader,(adb devices give s/n 1234567890ABCDEEF i come in the fastboot screen, but fastboot erase is not working, fastboot flash works.

After flashing staging blob, the tab freezes and I try to reboot still same isue.

I can boot up to android with the following sequence.

start up, automatically opens twrp , adb reboot bootloader, then hit the android icon and i can boot up android.

But, can't use the touch, because the touch has been replaced and need to be updated.

How can I bring it back to stock, because fastboot erase dont work after adb reboot bootloader., i really dont know what to do anymore.

Also booting up with the reset button and volume down is also not working.

How can I solve it?
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
if it boots into android connect a mouse to it and use it as input device and try via terminal to boot into bootloader. Also the erase commands should work. can you post the output?
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
Are you sure you flashed the correct recovery?
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
should only be an issue when the recovery was written into the bootloader partition, but since he flashed the asus blob first and its booting i don't think that's the issue. especially if the erase commands really won't work. hence the request for output

cheers

buster
[Transformer TF300T Q&A, Help & Troubleshooting] lvrijn:
The problem is for now it's almost impossible to use the tablet.

Since there is an new touch installed (G01, original version 5184n), the screen is going crazy (also without the pcb attached)

I will try later again, to open terminal app, then need first su? then reboot bootloader command?

Let u know tuesday
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
that or use adb.

gl
[Transformer TF300T Q&A, Help & Troubleshooting] lvrijn:
Ok, when I boot up in android, I can use adb command reboot bootloader to boot in the bootloader.

When i then try fastboot erase system, it's still hangs with waiting for device..

The bootloader is not stuck, i can again boot up android..

it's impossible to open terminal, because the touch is going crazy..

Hmm, i'm trying something else.

I still had 10x tf300 for repair. there are multiple cracked with 5184n version.

I installed the cracked display assembly on this one, then i just can normally use the keyboard.

Will try again in terminal

edit: what command to use in terminal?

Dont forget, i flashed the recovery, but didnt install supersu zip yet..

The strange thing is, when im in the bootloader, i can use fastboot flash recovery command, and write the right recovery.

It's also succesfull (sending recovery OK, writing recovery OK)

But, the transformer hangs in the bootloader after finished (freeze)

When trying to reboot, it's automaticaly going again booting up twrp (enter password)

So it didnt write the recovery, by example if i write twrp 2.7, it still gives me 2.6.3.0 (installed first time)

extra information:

If i'm booted up, and then adb reboot bootloader, then try fastboot commands, they don't work. it keeps saying waiting for devices.., the fastboot commands like flash works for 1 second then the tablet freezes.
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
It looks as if you do not have a fastboot connection even though there is no error message in cmd.

You may have to use _that's bootit.ko to get the bootloader back and then flash the firmware blob.

Check out this thread and ask lj for help and the exact steps to take - he loves it.

http://xdaforums.com/showthread.php?t=2850464
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
try it under linux with adb and fastboot installed. could be a driver issue also (especially if your windows starts with the number 8.x ) and use the stock cable.

also when twrp greets you with the password BS, erase recovery (and in some cases /misc) and reflash a different recovery.

gl

buster
[Transformer TF300T Q&A, Help & Troubleshooting] knoxor:
Hi,

I have the same issue and have tried Buster's method above but still the tab hangs during the system flash. I have tried this on different computers (windows 7 and windows 8) with the same results.

I've been trying to fix this issue for a couple of months now and no joy.

I don't want to have to RMA this but I don't think I have many other options.

Would anyone have any other suggestions .... please !!!

thanks
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
so you have fastboot? what's happening exactly? please post your output. also did you use the original cable?

cheers

buster
[Transformer TF300T Q&A, Help & Troubleshooting] knoxor:
Hi Buster,

Just to give you an idea where I'm at. I've had a couple of people on different forums trying to help me but nothing has worked so far.

I had Josh helping me before (http://xdaforums.com/transformer-tf700/help/tf700-stuck-boot-loop-access-to-t2804188) but we couldn't work out why I was getting my issues. I shared my desktop with him to allow him to work on the tab but nothing we tried worked.

Basically what is happening is that I have unlocked my bootloader but when I try to flash a recovery image the tab hangs in the bootloader menu. I don't get any "blue bar" during the flash process.

The flash seems to happen quicker than normal. I spent a few hours repeating your method in this thread but always the same result.

I am using the original usb cable supplied with the tab

C:\adb>fastboot devices
015d2a506733xxxx fastboot

C:\adb>fastboot erase system
******** Did you mean to fastboot format this partition?
erasing 'system'...
OKAY [ 0.038s]
finished. total time: 0.038s

C:\adb>fastboot erase recovery
erasing 'recovery'...
OKAY [ 0.036s]
finished. total time: 0.037s

C:\adb>fastboot erase userdata
******** Did you mean to fastboot format this partition?
erasing 'userdata'...
OKAY [ 1.928s]
finished. total time: 1.928s

C:\adb>fastboot erase boot
erasing 'boot'...
OKAY [ 0.036s]
finished. total time: 0.037s

C:\adb>fastboot erase misc
erasing 'misc'...
OKAY [ 0.044s]
finished. total time: 0.044s

C:\adb>fastboot erase cache
******** Did you mean to fastboot format this partition?
erasing 'cache'...
OKAY [ 0.059s]
finished. total time: 0.059s

C:\adb>fastboot -i 0x0B05 flash system 14.10.blob
erasing 'system'...
OKAY [ 0.028s]
sending 'system' (800927 KB)...
OKAY [ 98.785s]
writing 'system'...
OKAY [ 0.090s]
finished. total time: 98.904s

C:\adb>fastboot -i 0x0B05 reboot
rebooting...

finished. total time: 0.548s

C:\adb>

I have also tried this on a Windows 8 laptop and a laptop running ubuntu 14.04 LTS and always get the same results.

I appreciate any help or advice you can give.

cheers

Paul
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
which bootloader are you on? jb?
[Transformer TF300T Q&A, Help & Troubleshooting] knoxor:
Hi Buster,

I think I'm on jb (I have the RCK - Android - wipe data) options on my bootloader.

I was also thinking, I had to replace my charger/usb cable but I spent the extra money and bought

an Original Asus one for the TF700t.

But maybe this could be my issue.

Do you know where I could buy the original OEM cable, it would be good to rule this out before I go any further.

cheers

Paul
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
besides amazon or smth. similar no idea sorry
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
Caseen has them a good price

http://caseen.com/19-transformer-tf700t