yashsingh1/xdaforums huggingface dataset:
[Transformer TF300T Q&A, Help & Troubleshooting] sbdags:
Put the 'blob' in the same folder as fastboot and try it again without the path in the code.

fastboot -i 0x0B05 flash system blob
[Transformer TF300T Q&A, Help & Troubleshooting] Fuji_:
Still same message:

C:\Program Files (x86)\Android\android-sdk\platform-tools>fastboot -i 0x0B05 fla
sh system blob
erasing 'system'...
OKAY [ 1.677s]
sending 'system' (800931 KB)...
FAILED (data transfer failure (Too many links))
finished. total time: 1.713s>

EDIT:

Problem solved! I love you guys. I was doing all the steps with my Dock Station connected. As soon as I removed it, the last error message disappeared. I also forgot to push the Reset button on the side of the Tablet before starting the procedure, I don't know if it could have helped. :good:
[Transformer TF300T Q&A, Help & Troubleshooting] sbdags:
Glad you got it sorted :)
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
oO

actually never crossed my mind to ask if you were using the dock xD

maybe Ziem is using it as well.
[Transformer TF300T Q&A, Help & Troubleshooting] Ziem:
No, unfortunately not :(.
[Transformer TF300T Q&A, Help & Troubleshooting] lowrider13:
Hey all,

I was having the same problem as Ziem, but waiting with the fastboot hung up but the command still running eventually erased the misc.

My problem now is that I can't flash the blob. Using

fastboot -i 0x0B05 flash system blob

The erase system command executes, but when it moves to "sending" system, the fastboot hangs and I get the following fail:

FAILED (data transfer failure (Unknown error))

Trying to flash a recovery blob produces the same result as trying to flash the system blob

Any thoughts? Thanks for your help so far!
[Transformer TF300T Q&A, Help & Troubleshooting] lj50036:
Did you try a different USB port ?

You are not docked are you ?

Thx Josh
[Transformer TF300T Q&A, Help & Troubleshooting] lowrider13:
Yes have tried different USB ports, and no not docked.

I am running W8.1 though, and have USB 3.0 ports so may try and get another machine up (W7, USB 2.0) and running and try with that.

Edit:

W7 machine with USB 2.0 still having the same problem.

Edit 2:

Machine running Mint Linux had the same problem, although the command didn't give a fail response - it simply didn't give an output until I unplugged the tablet and it then said it failed as it was unplugged.
[Transformer TF300T Q&A, Help & Troubleshooting] lowrider13:
*Bump* - any thoughts all?
[Transformer TF300T Q&A, Help & Troubleshooting] chikara.araki:
Thanks for your steps.

First of all, I wanted to say thank you, I am so happy. I tried using the CyanogenMod for KitKat 4.4.4 and for the most part, it worked beautifully. I then started to re-install my applications. Unfortunately, several of them glitched which are quite important to me and my son for playing games. Alas, I figured I should go back to the most recent updated firmware from Asus for my Transformer TF700T. It refused/declined/wouldn't update, however, I feel that part of that may be due to me doing something wrong at 2:00AM in the morning and a little sleep deprived. No matter which steps I tried, I couldn't get it to work even after a good night's sleep.

I came across your steps using the fastboot commands and it worked like a charm. Everything worked on the original stock and I am happily updating and re-installing what's needed for my son and I to play our games together. It may not sound like much, but he lives over 800 miles away and this way we get to see and spend time together doing stuff online he enjoys doing. Thank you again.
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
Glad to hear it :)

cheers

Buster
[Transformer TF300T Q&A, Help & Troubleshooting] hb9599:
TY Buster99!

This worked, my tf700T is working again! I messed up the tab with a noob mistake - after unlocking, rooting, flashing custom rom which was crashing I hit the format button in bootloader. No more recovery, system would boot but was not working well. Had fastboot access after unlock, but then it was not working. I downloaded adb/fastboot tool, the Asus Sync software, Google naked drivers...nothing worked no fastboot. Day 4, more reading, stumbled upon a post where someone tried adb devices command instead of fastboot devices command and it worked, the device was found! From there I used the reboot-bootloader command, and was able to get into fastboot. Then I followed Buster99's instructions, and it worked! It's stock, but it's back and I'm so grateful - Thank You All!
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
glad it worked for you :)

once you are back to stock you can get custom rom'ing again!!

cheers
[Transformer TF300T Q&A, Help & Troubleshooting] dibon321:
not successful yet

Hi, Hope anybody can help me. I'm trying this from yesterday with no luck. I have been using CM12 after OTA update from CM11 but according to that I was not satisfied with HDMI output I decided to try KatKiss 5.1 ROM.

1. I have flashed new twrp 2.8.6.1 --> successfully

2. I have flashed zip file of KatKiss rom --> Not succesfully, did not boot into rom, stayed on Asus boot logo

3. I played with some update function in new twrp (do not remember exact points but there were two lines for update with rounded check boxes) --> after this, no success to boot into the twrp

So. after I got red error message, I found this topic and tried many times all of those commands.

1. Everyone command "fastboot erase [partition]" ends with "Waiting for device"

2. I'm able to flash blob file but with no change after process (tried twrp.blob and stock blob file from last JB stock rom)

3. Command fastboot devices --> nothing happen with this

4. Command adb devices -->

5. I have only 3 icons in fastboot and I'm little bit scared of because I found many times information, there should be 4 icons. I miss USB icon.

Fastboot screen info:

If I try choose RCK or another icon, red failure message occur.

Thanks in advance.
[Transformer TF300T Q&A, Help & Troubleshooting] kevinthefixer:
Do not panic: you still have a good bootloader. The four icons were in older versions; you have the latest one and that is good. So only three icons is just what you want.

There is something wrong with your fastboot setup. Try a different USB port, a USB2 port not a USB3 port, and reboot both machines. if you still cannot get "fastboot devices" to return a good number, reinstall your fastboot/adb drivers or try different ones. Then flash the recovery (do not use TWRP 2.8.5), reboot into bootloader, reboot into recovery, and use recovery to flash the ROM. If you're going for KatKiss I'd change the /data filesystem to f2fs before flashing the ROM.
[Transformer TF300T Q&A, Help & Troubleshooting] dibon321:
Hi, thanks a lot for reply. I do not panic but I was already desperate. :D nothing worked for me, I spent many hours to figure out what is the problem and nobody answered to my comment over the week.

Today after your response, I just start again... Reinstalled adb/fastboot in pc and reboot tablet into the fastboot. I was pretty happy when "fastboot devices" command worked. :D Now everything is again working with stock rom. I would like to try katkiss rom again but I have 2 questions:

1. Do you know if is possible to set hdmi output resolution under katkiss rom (720p/1080p)?

2. Could you post link how to change file system to f2fs? Anyway I'll try to find it by myself, just asking in advance. :)

Thanks.
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
Don't know about 1)

For 2) there's this: http://xdaforums.com/transformer-tf700/general/guide-convert-data-to-f2fs-twrp-2-8-t3073471
[Transformer TF300T Q&A, Help & Troubleshooting] dibon321:
Thanks a lot. I tried yesterday go with twrp 2.8.6.0, than tried instal twrp 2.8.6.1 by flashing img file via twrp but unsuccesfuly an now I'm back on error message. I recognize now this was the same as first time... But before the error message I tried flash katkiss via twrp 2.8.6.0 but unsuccesfuly too. I'll try again today follow your steps according to link you posted. :)
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
You cannot flash an img file in recovery. The recovery image would have to be in a flashable zip to flash it in recovery. You can flash the blob or img in fastboot though.

No idea why your Katkiss flash failed... TWRP lets you save the recovery log under Advanced. Save and post it if the flash fails again.
[Transformer TF300T Q&A, Help & Troubleshooting] dibon321:
Really? Because I have read this guide here on XDA (I think). Flashing recovery img via twrp, but it must be at least version twrp 2.8 which is supporting this method. I'll try it today and post log file in case of failure. :good:
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
TWRP can flash a recovery if the image is packed into a flashable zip. But you cannot flash an .img file in recovery - trust me ;)
[Transformer TF300T Q&A, Help & Troubleshooting] dibon321:
Oki, this is log from console:

Regarding log from twrp after flashing twrp... I can't find this log. Even I try Advance / Copy log to SD.

And I have this red lines:

E: Unable to mount '/system (same for data and cache).

If I choose Mount / Internal storage... there is 0MB and nothing can be choose. So I'm unable to download log file from twrp... I think. And now I'm stuck in twrp after reboot.
[Transformer TF300T Q&A, Help & Troubleshooting] mhamzaqayyum:
Random type of brick

Hi Buster. I know it's 2015, but I have the same issue you had, and its a bit worse. Whenever I boot my tf300t, it goes straight into the TWRP logo screen, and the logo keeps flashing over and over again. When I plug it into my pc, adb recognizes it in recovery mode, but none of the adb or fastboot commands go through. Also, no matter how much I try to get into fastboot mode, it just never happens. None of the fastboot commands go through, and the device never goes into the bootloader no matter how much I do power + vol up or down, or reset button + vol up or down.

If you know any way to fix this type of issue, please tell me. Any help is well appreciated! : )

Thanks in advance! :o

Hamza Q.
[Transformer TF300T Q&A, Help & Troubleshooting] c0d3m0nk33:
I didn't want to start a new thread because I think I'm in the same situation as the OP. I am able to get into the bootloader menu and can access CWM-based Recovery v6.0.2.3. Any other choices seem to just hang up. It will not allow me to mount an SD card and I am unable to see the device connected to my PC. I think USB debugging may not be active. When laptop tries to install drivers it will hang up and the the tablet will eventually reboot.

I'm hoping for some advice on how to get my PC to recognize the tablet so I can use sideload or get the tablet to allow my SD card to mount so I can load from there.

Thanx in advance,

-John

---------- Post added at 10:27 PM ---------- Previous post was at 09:56 PM ----------

Update, I was able to get the tablet to show up on my laptop and showup in the cmd window using adb devices. It shows it as being in sideload mode, but I get an error when trying to sideload either the stock rom or the stable cm-11.
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
My advice would be you try to get into the bootloader, fastboot flash lj's Kang TWRP, then proceed from there.

In recovery use cmd

adb reboot bootloader

If that works check the connection with

fastboot devices

then follow the instructions here:

http://xdaforums.com/transformer-tf300t/development/recovery-twrp-t3046479

---------- Post added at 11:34 PM ---------- Previous post was at 11:18 PM ----------

How did you get ito this pickle and what are the adb commands that fail? What's the return in your cmd window?

Answers to those questions would help us understand what's going on. But you probably have to use bootit.ko to kick your tablet into the bootlader, then you can do the buster99.

_that came up with this ingenious trick, I summarized the procedure in this thread on the Transformer forums:

http://www.transformerforums.com/fo...my-transformer-tf700-boots-only-recovery.html
[Transformer TF300T Q&A, Help & Troubleshooting] sbdags:
berndblb,

adb reboot bootloader

fastboot reboot-bootloader

;)

subtle difference.
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
I was wondering about that... Shouldn't post when sleepy ?

Thanks for the correction
[Transformer TF300T Q&A, Help & Troubleshooting] mhamzaqayyum:
Well, I got into this pickle by factory resetting Cm12.1 from settings instead of recovery (Yes, I know this was a dumb move). When I type adb devices, it shows my device in recovery. But when I tell it to go into bootloader, so I type adb reboot bootloader, it just keeps waiting and waiting and eventually I have to abort the command. I am reading the link you sent to the transformer forums and following that. Hopefully this works!

Again, I REALLY appreciate your help! :)
[Transformer TF300T Q&A, Help & Troubleshooting] mhamzaqayyum:
Yes! It worked! Thank you thank you thank you! I'm so happy! Thank you for all of this help and HUGE thank you to the maker of the bootit.ko file! :o
[Transformer TF300T Q&A, Help & Troubleshooting] dibon321:
I have still no luck with flashing KatKiss 5.1 :crying:

I think, I have solved issue with red lines in console (about not mounted data, syste, cache...) by flashing twrp 2.8.6.1 instead of 2.8.6.0 with which I had some issues.

Flashing new twrp done well, change data partition to F2FS done well, flashing KatKiss done well, wipe dalwik/cache done well... But I'm still stuck on boot logo. :eek:

I have another question:

I don't have picture of screen now, but when I'm booting to recovery, there appear 5 linux penguins on the screen (upper left corner) with short text... something regarding Old FW. Than flash for 1 second text "Android device" in the middle of the screen and twrp boot logo pop-up. :confused:

Any suggestions?

Thank you.
[Transformer TF300T Q&A, Help & Troubleshooting] dibon321:
I have found that information, as I said and did instalation from twrp :) It's from official site of twrp

https://twrp.me/devices/asusTF300T.html
[Transformer TF300T Q&A, Help & Troubleshooting] dibon321:
Update:

So, I did all wiping, repairing partition (in twrp), change data to F2FS again yesterday. Then, I installed OmniRom 5.1.1 and it booted up successfully. :) So, than I tried KatKiss but I have stuck on KatKiss booting logo. So, I did again wiping/factory reset and reinstalled KatKiss.

Now I'm successfully using KatKiss (finally!) :D

I want to thank you, berndblb for you help and patience. :fingers-crossed: :D :good:

My next project: I would like to change HDMI output resolution, now it's horrible and doesn't fit TV correct. I would like to have option to change output to 720p or 1080p as the best. I hope it's possible, I have to do some research. :highfive: :laugh:
[Transformer TF300T Q&A, Help & Troubleshooting] Monster212:
Dude you are a lifesaver, this worked perfect thank you so much.......
[Transformer TF300T Q&A, Help & Troubleshooting] mike-y:
so I attempted to update TWRP by using the flash img button in the recovery and choosing the new twrp file and got the unrecoverable bootloader error. and I'm SURE I picked recovery when it asked me what to flash.

Anyway, BIG thanks to Buster99 for making my tablet functional again
[Transformer TF300T Q&A, Help & Troubleshooting] tyujhg10:
HELP! Asus Transformer tf300 Stuck on load Screen

hello

My tablet like this

Can you guide me to restore it is not .

I am a Vietnam should be slightly less English proficiency , you can only restore me in detail as possible ,

My computer can not enter the bootloader , I turn up the volume button - the power , but not only accessible but asus logo

Asus tf300t
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
If you cannot get into the bootloader by holding the Volume Up and Power buttons it is bricked - sorry.

Unless you have your NVFlash blobs of course, but I think you would have mentioned that...

They need to be generated when the tablet was still working and they are specific for each device. It's too late for NVFlash for your device.

Maybe you can find a TF300 with a busted screen that someone is selling for cheap and exchange the main board. That's about your only option...
[Transformer TF300T Q&A, Help & Troubleshooting] Malobestino:
So i'm kinda in the same boat as everyone in this thread (that I've entirely red, but still cannot find the answers I need)

My T300T tablet is on the latest firmware ww_epad-10.6.1.27.5-20130902 A03

I have TWRP recovery 2.8.4.0

Currently I'using Katkiss 4.4.4_036 ROM

I wanted to update to the latest Katkiss Lollipop ROM #25, but before everthing else I wanted to update the TWRP recovery.

So i went to TWRP TF300T homepage and follewd the provided instructions:

The result I got is the "unrecoverable bootloader error" every time I try to access recovery from within the "fastboot menu".

If I try to access recovery from within the ROM, the tablet simply ignores the request and load the ROM directly.

Right now I can:

-access to fastboot (the device is recognizaed by the PC -"fastboot devices" returns the correct value - and it accepts the "fastboot reboot-bootloader" command)

-access to the ROM (at the moment the tablet appears to be usable).

But I CANNOT acces to recovery in order to flash another ROM.

Now my QUESTIONS are:

As far as I understand I have to do the "Buster99 procedure" in order to have access to recovery again.

I'm a little bit scared by all the erasing going in this procedure, is there any other way to achieve the same results given that my tablet is loading the ROM?

When I'll finish that procedure, how I'm going to flash the new recovery?

The instructions on TWRP site are a little bit confusing:

The instructions say to download the BLOB file, but the latest TWRP recovery (2.8.7.0) has an IMG extension.

Then they say to rename the image to "twrp.blob" and type "fastboot -i 0x0b05 flash staging (shouldn't be something like "flash recovery"??) twrp.img (but I just renamed to twrp.blob???)"

Probably there are some typos in the instructions, but I'm really unsure on what to do.

Sorry if this was someway already explained, but this device isn't mine and I don't know it very well: I don't want to risk bricking it.
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
Interesting. Didn't even know that TWRP now supports flashing the image.. But it's a new feature and I suspect it's not working quite right.

I don't think that you'll have to do a buster99 if you can boot the rom and into fastboot, I would first try to fastboot flash the recovery - IMO still the best way to install a new recovery.

It doesn't matter what the file extension says - fastboot will flash it just fine as long as the file name matches your command. The TWRP image is still a blob file, just the extension changed. So you don't even have to rename it.

Either "fastboot flash recovery twrp.img" or "fastboot flash staging twrp.img" is fine. They do exactly the same thing. Even "fastboot flash recovery" will load the file into the staging partition first. On the next boot the bootloader writes it to it's proper partition.

Try that first, then boot to recovery using the buttons (Power and Vol Down to get to bootloader, then Vol up to enter recovery) and see if it works now.

Just to be on the safe side you may want to clear the cache before flashing TWRP.

'fastboot erase cache' will do
[Transformer TF300T Q&A, Help & Troubleshooting] Malobestino:
Thank you a lot! That's exactly the kind of help I need.

Unfortunately your method didn't work either.

I opened a cmd window with administrator privileges (I'm on windows 8.1, maybe i should have pointed out before) and went in the directory with all the tf300t stuff and typed

As you can see there's an error on rebooting therefore the recovery isn't written and the tablet is stuck.

From there I rebooted in fastboot manually (power+vol down) and tried to enter in recovery (vol up), but as expected the tablet returns the same error as before:

From there I can only reboot the tablet manually.

Obviously the ROM is still working.

Is there anything I can try before committing to the "Buster99" procedure?

Using "fastboot erase recovery" before trying to flash the recovery, maybe?
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
are you sure the twrp version fits your bl? you can also use flashify from the playstore and give that a whirl

gl
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
This is so strange... I have never seen the unrecoverable bootloader error when the rom still boots up fine.

You can try fastboot erase recovery - won't hurt a bit - but next time try 'fastboot reboot' after the recovery flash and see if you get the blue progress bar
[Transformer TF300T Q&A, Help & Troubleshooting] TheGrinder77:
Same problem as yours.

I was trying to update from Katkiss #023 to #025 but found out that I couldn't enter to recovery mode cause of this issue.

Twrp doesn't even install through flashify (freezes when selecting file) or twrp manager (crashes):crying:

Tried "fastboot erase recovery" then "fastboot -i 0x0b05 flash staging twrp.img" but when the process ends the tablet get stuck... "fastboot reboot" doesn't work either and I have to long press the power button to restart the tablet:(

I think that Buster99's method is the only way out
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
Did you also try to flash the TWRP image in recovery? I wonder if that caused it...

If yes, you guys should definitely take this to the TWRP thread!
[Transformer TF300T Q&A, Help & Troubleshooting] lj50036:
You cannot flash our .img's with that tool. They are really blobs...

Let me see if there is a way to omit it from my TWRP ....

Thx Josh
[Transformer TF300T Q&A, Help & Troubleshooting] TheGrinder77:
I'm pretty sure I've flashed one of your .img recoveries directly through twrp one time.. Could it be the cause of this issue?

If I try to enter recovery mode through bootloader screen I get this annoying "unrecoverable bootloader error" but the rom still boots up fine so I really don't know what the cause could be.
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
If you say "our" .img do you mean your Kang TWRP or the official version? 'Cause Teamwin says right on their site you can as Malobestino posted here: http://xdaforums.com/showthread.php?p=61102027

I am totally confused on this... _that also posted somewhere the .img is still a blob just with a changed extension.... Why?

Can you enlighten me sensei???
[Transformer TF300T Q&A, Help & Troubleshooting] lj50036:
The official website is wrong .... :D

I talked to Dees_Troy and it will be fix, when he gets some time :good:

Thx Josh
[Transformer TF300T Q&A, Help & Troubleshooting] berndblb:
Ah! That explains a lot. Quite a blooper I should say ?
[Transformer TF300T Q&A, Help & Troubleshooting] rabidrabbit001:
Thank you Buster99. Your method works great first time. Here are some process pics[IMG="Buster99 reflash process"][/IMG]

Here is what the tf300t looks like after reflash before reboot

[/URL][/IMG]
[Transformer TF300T Q&A, Help & Troubleshooting] Buster99:
glad it worked out for you ?
[Transformer TF300T Q&A, Help & Troubleshooting] TheGrinder77:
Worked for me as well! In my case there was no need to flash blob file though..

Thanks!
[Transformer TF300T Q&A, Help & Troubleshooting] Malobestino:
I tried "fastboot erase recovery" and "fastboot reboot" but the outcome is always the same: the tablet is strucked, it doesn't reboot and upon rebooting (using the physical button), it doesn't show any blue bar. Obviuosly is impossible to acces the recovery.

So I guess that the "Buster99 procedure" is the only viable option at the moment.

Isn't the blob flashing necessary to have a functioning system on the tablet? :confused:

How you managed to resolve the issue erasing all the system part without flashing the blob?

Can you please explain exactly what you did? It would be really helpful