yashsingh1/xdaforums huggingface dataset:
[Transformer TF300T Android Development] martyr2k6:
would love to have this as a fallback, but I think I am in a rather interesting predicament...

See, I don't think I ever backed up stock ANYTHING on this tablet, and I don't even remember how I got a rom on this thing to begin with (alot of life crap going on I think). All that I DO KNOW is that I am currently running CM10 and TWRP, and obviously have an unlocked bootloader.

Some peeps say that if you are on JB, you can't go back to ICS, but I seemed to have no problems with TWRP by going to hyrdo's ICS rom from cm10... maybe there was something I was missing.

I guess I just need someone to give me some TLC and guide me in the right direction. I know warranty is voided... So poopy there. If I need to do this as a Q&A entry, I will, but forgive me for checking here first as I know that sometimes people post things where they don't belong.

I am thinking it would be best to return this bad boy as close to stock as I can (kernel, rom) and then try the NVflash from there. But I don't have a stock ICS rom other than "V9.4.3.30 Only for US SKU (Android 4.0.3)" (not sure if this is a good starting point or not...

Everything personal is backed up, so any direction would be helpful :D
[Transformer TF300T Android Development] Blubberor:
Thats not the right statement. :cyclops:

You cannot get back from JB bootloader to ICS bootloader as JB bootloader has now a special security check which is mandatory.
[Transformer TF300T Android Development] Jamalsid:
If you are unlocked and and running CM10 it sounds like you never updated to the official OTA JB rom from Asus. If that is the case then you deffinitley have the ICS bootloader. Also if you are running CM10 right now you cannot be on the JB bootloader as CM10 doesn't work with the new bootloader.

I am pretty sure you can use nvflash to back up all the important files from any rom as long as you are using ICS bootloader, which it sounds like you are.
[Transformer TF300T Android Development] martyr2k6:
Didn't quite catch what you meant about":cyclops:" n and thanks for clarifying.
[Transformer TF300T Android Development] -angel*:
Am I wrong or would NVFlash for JB Bootloader be the key for bootloader downloading too?

Just a thought of me, because I'm on this f*cking JB bootloader :(
[Transformer TF300T Android Development] shakeyourmatt:
MTP/ADB Blob Q

So I'm following this guide: http://androidroot.mobi/t3_nvflash/

which is awesome, by the way.

but I'm a little confused as to where the blob files went...I need to "need to retrieve them from the “internal” SD card from the AndroidRoot directory (e.g. /sdcard/AndroidRoot). You can do this either through MTP mode or by pulling them using adb."

using MTP, there is no androidroot folder on my internal sd...

and once I copy them 3 times, where should I put them? keep one where it is I assume, then keep backups on my computer?

Any help is much appreciated.

NVERMIND!
[Transformer TF300T Android Development] Mars73:
Finally got it to work over here as well.

Actually the only problem I had is that I couldn't get the tablet into APX mode (Vol+ when rebooting).

Reading some comments on the nvflash site gave me the answer. I did a fastboot reboot and I could enter APX.

Saved all the files in 6 different locations incl. Ubuntu One (paranoia me? :)).

I was already on CM10 and am quite pleased with it so no need for anything other, but it would be awesome to

try Ubuntu on it as it's my main OS on my desktop and laptop.
[Transformer TF300T Android Development] shakeyourmatt:
is it alright that my computer thinks my tf300t (when in APX mode) is a Transformer Prime?

I installed the universal adb/apx driver....

also, when I try to run the 'wheelie --blob blob.bin' command, I get this error:

'wheelie' is not recognized as internal or external command......

i need an adult ;)
[Transformer TF300T Android Development] dark alex:
Just an absolutely stupid question...

I have the JB Bootloader on my Tab. I cannot revert as far as I have read...

If someone shared his device specific data with me, would I be able to revert back to ICS Loader then?

Thanks for your help.

Regards Alex.
[Transformer TF300T Android Development] -angel*:
As I know, there's really no way to downgrade the bootloader, but I think (and hope!) they are working on NVFlash for JB, but maybe there will also be a way to downgrade if they get NVFlash working on JB... :good:
[Transformer TF300T Android Development] Sib64:
Why do you want to revert in ICS ?

And as says @-angel* you cannot downgrade your JB bootloader actually.
[Transformer TF300T Android Development] Northern-Loop:
So I've installed nvflash and backed up the required files, I'm running CM10 at the moment but want to try JB ROM. If I don't like it how do I flash CM10 again?
[Transformer TF300T Android Development] bsaman:
Check out this post: http://xdaforums.com/showthread.php?p=32386737
[Transformer TF300T Android Development] xilunas:
Hi... I ended up with a brick, unable to boot into anything at all, not even APX mode.

I followed the instructions and made backup of all the files before that, though.

After finish with the guide, my device was working, but stuck in APX mode after every reboot and the only way to boot further (into fastboot or system) was to go through the command sequence

wheelie -r --blob blob.bin
nvflash -r --go

So then I started experimenting on my own... Firstly I tried

nvflash -r --download 6 boot.blob.LNX

Where boot.blob.LNX I extracted from boot.blob in the latest CM10 nightly.

After a restart, nothing changed, so I did this

wheelie -r --blob blob.bin
nvflash -r --download 4 bootloader.ebt # [B]bootloader.ebt[/B] is the file from the backup
nvflash -r --go # Did this while swiftly pressing PowerDown and went into Fastboot mode only to break everything with the next command
fastboot reboot

Since then I don't get any reaction whatsoever when I plug in my tab through USB. Tried both Linux (I completed the guide under Linux, btw) and Windows - they don't even recognise there is a usb device connected. Pressing/holding down on Power, Power+VolumeUp or etc. seems to have no effect. wheelie is stuck on

Is there hope for me? Is there some other way to get to APX?
[Transformer TF300T Android Development] ParaTr00per:
anybody tested it on TF300TG version?
[Transformer TF300T Android Development] dergrafi:
Yes, but only the backup as described in the guide. Works perfect as described. I didn't restore the bricksave.img yet, because im still running fine.

Gesendet von meinem Galaxy Nexus mit Tapatalk 2
[Transformer TF300T Android Development] ParaTr00per:
thanks, successfully made backup of my TF300TG. :good:

I hope I will never need it... :)
[Transformer TF300T Android Development] prototype7:
Beautiful, worked perfectly. Only bump I had was I missed downloading the actual nvflash binaries, so I couldn't get the nvflash command to work :rolleyes:. Also, if you're running Linux, make sure you use ./wheelie and ./nvflash for those commands to tell it to look in your current directory for the files.
[Transformer TF300T Android Development] cubandanger05:
It worked like a charm, thanks! My question now is, say something goes wrong for me when trying a few nightlies here and there......

-how do we flash these files back to the phone to unbrick it?

-what commands do i use and in what order?

if someone can link a guide that shows how to do that would be perfect.

thanks in advance
[Transformer TF300T Android Development] TheEvilVirus:
+1

Is nvflash always preserved, also when changing bootloader?
[Transformer TF300T Android Development] arch.fadi:
My TF300 is unlocked. I installed the new JB and then I was trying to install CWM. I used fastboot to push it to the device. When I rebooted, holding down the volume button, It came up to the menu with RCK, USB, etc. I selected wipe data by accident. It sat there for a while saying it was going to wipe and go into the boot loader. After a while I shut it off thinking it was hung. Now when I power on the device I get only the ASUS startup screen. Volume up or down don't affect the mode. It just says "The Device is Unlocked" at the top, and the static ASUS logo in the middle. When I plug in the USB to my Windows 7 computer I get nothing in the device listing. I can't even fully turn the device off. Holding power for a few seconds, it goes off, and then it comes right back on by itself.

I think I'm totally bricked, right? It won't even go into APX mode it appears.

sorry if i but this thread here but really i need help ...can NVFlash help....?????

thanks
[Transformer TF300T Android Development] mikeseguin:
yep your totally bricked alright
[Transformer TF300T Android Development] brittan:
Did you try holding the power button and the volume down button to hard reset the tablet? then after the power is off try to power on into APX mode.
[Transformer TF300T Android Development] arch.fadi:
thanks in advance...

my friend the only step i could do is :

my pc see apx device and i install the universal Naked Driver
[Transformer TF300T Android Development] rpicaso:
lost recovery attempting this.

I unlocked the tab which had 4.0.3. I was NOT rooted and did NOT have a custom recovery installed.

I followed the guide for the TF300 here: http://androidroot.mobi/t3_nvflash/ and flashed the AndroidROOT bootloader with this command:

fastboot -i 0x0b05 flash staging ebtblob.bin,

rebooted with: fastboot -i 0x0b05 reboot

and verified bootloader version is AndroidRoot 9.4.3.30r01.

Now the problem is, I have no fastboot mode on the tablet any more. When I try rebooting using power+vol down I get the message about press up in 5 seconds to enter RCK I press up and it sets for a few seconds before showing the dead android image.

So what should I do now? Is this recoverable?

Thanks in advance for any help.
[Transformer TF300T Android Development] mikaole:
You have the stock Recovery, thats all.

Just flash your desired Recovery again.
[Transformer TF300T Android Development] rpicaso:
Actually, I just pressed down a couple of times and got the selection menu and was able to get to fastboot mode and make my backups thank god!!

I used adb to put twrp on it so I should be good to go..I hope.:D

---------- Post added at 11:01 AM ---------- Previous post was at 10:51 AM ----------

of course now I can't get it to go into APX mode.. Is it power off, then hold power + Vol Up or tell it to power off and then just hold Vol up whilst it reboots? tried both ways and neither work.

EDIT: Nevermind, just held vol up and issued an adb reboot command and got APX..
[Transformer TF300T Android Development] rpicaso:
This is annoying as hell...

Jeez, this whole ordeal is turning into a f@#^ing nightmare.. cannot get the naked usb drivers to install on ANY of my three computers!! win7 64bit fail, win7 32bit fail, and win XP 32bit fail.. the thread for the drivers is worthless, does anyone here know how to get them to install??

thanks again.
[Transformer TF300T Android Development] rpicaso:
Yay! Got it done!

Ok, I managed to muddle through and get it done! I'm not new to flashing and this kind of thing, It's been a while though since I flashed my captivate or Inspire 4G..:p

Does anyone know the procedure of what to do in case of a brick? Would be nice to know how to use this after all the hell I went through to get it on here..lol Particularly, I would like to know how to switch between ICS and JB Bootloaders.

Thanks!
[Transformer TF300T Android Development] -angel*:
it's not switching, it's just restoring ICS bootloader backup as far as I know...
[Transformer TF300T Android Development] rpicaso:
GPS Broken now?

Did anyone elses GPS stop functioning after installing this? or did 4.0.3 just have a crappy GPS?
[Transformer TF300T Android Development] jwebster:
My TF3T has about same set up. My GPS is rock solid and fast. I'm still on stock ics .30 unlocked rooted with TWRP and TiBU, with nandroid and full back up of apps and data. Now that I've got the nv backed up I feel I've got a non expiring GET OUT OF JAIL FREE card. Hats off to all the contributors to this thread! I am shopping hard for the best all around rom, and I can wait to stop hitting postpone every time this offer from asus comes up. hehe. Comments questions, suggestions invited.
[Transformer TF300T Android Development] jwebster:
BY THE WAY...

I noticed some banter about donating and paypal etc... and I have this to say about that...

GREAT WORK RAYMAN!! This thread ROCKS! Have a COLD ONE ON ME... #1EV5078195577824P
[Transformer TF300T Android Development] rpicaso:
Yup, this is an AWSOME tool to have for sure and my eternal thanks go to the Devs for all their hard work! As far as the postponing of the OTA update, I had the same thing going on and did a factory reset and voila! no more OTA notifications.
[Transformer TF300T Android Development] Eogram:
*edit*

I was doing fastboot through the keyboard dock. Worked for the first part, but not at all after that. Once I tried with the usb plugged directly into the tablet it worked.

*/edit*

I've got a bit of a problem.

I'm TF300, ICS bootloader, CM10 nightlies, TWRP recovery. And I'm using Win7x64

I did the fastboot -i 0x0b05 flash staging ebtblob.bin step

Then when I rebooted, the AndroidRoot 9.4.3.30r01 text appeared, but the asus and nvidia images both looked slightly corrupted.

I proceed to fastboot, and I get to the Starting fastboot USB download protocol

But when I try fastboot -i 0x0b05 boot nvfblobgen.img it just sits on waiting for device

I've waited upwards of 10 minutes for a response. And I've tried to re-enter fastboot a few times with no different results.

I can still boot into cm10 just fine, but I can't proceed with nvflash at all.

Anybody know where I'm derping?
[Transformer TF300T Android Development] rpicaso:
Process for recovering bricked devices?

So, If someone bricks and need to recover using this tool, where is the guide on how to recover our device using NVFlash? Is there an IRC chat or is there a guide coming soon or what? Was just wondering as I can't find anything pertaining to recovery of bricked devices using NVFlash. Can one of the Devs chime in on this if possible?

Thanks!
[Transformer TF300T Android Development] MorphiousGX:
I am in the same boat and I feel his pain. I want to downgrade to ICS bootloader so I can flash whatever JB ROMs are out there.

What sucks is that I didn't pay attention to the fact that I can't downgrade, and even more that most roms won't work with the new JB bootloader. So I unlocked it with the new bootloader and now stuck because I can't flash anything but ONE of ROM (Hydro).

I know that eventually all ROMs will have the JB kernel and it wont' be an issue, but for the time being, I'd like to be able to downgrade.
[Transformer TF300T Android Development] Sib64:
No, mine is good but with

this patch

, from @crypted, is really faster and good ;)
[Transformer TF300T Android Development] mikeseguin:
now that this has helped 20 or so people, can we start looking into creating a real fix for bricked tf300t tablets? thanks :)
[Transformer TF300T Android Development] lawsonmh15:
Worst

Tutorial

EVER...

Maybe next time go through all the steps requred to use this.
[Transformer TF300T Android Development] Eogram:
Considering all the people posting before you who have figured it out, maybe it's your reading comprehension that's failing here. ;)
[Transformer TF300T Android Development] Sib64:
Have you seen that if you click on the line for more details, you will get in the website "

androidroot. mobi

"

And you will find the process step by step ;)

Sending from my tf300 using Tapatalk premium between sky and earth
[Transformer TF300T Android Development] NixZero:
...and peace in the world and free beer, whishfull thinking is always a good thing...
[Transformer TF300T Android Development] lawsonmh15:
How do I use this to flash back? It appears I've soft-bricked by listening to someone in one of the ROM threads and flashed a JB rom over ICS without taking the update. The tutorial says the files I generated were my lifeline, so how do I flash them to get back to the ICS bootloader?
[Transformer TF300T Android Development] Sib64:
you cannot coming back to the ics bootloader!!! once you have the JB bootloader on your TF300t
[Transformer TF300T Android Development] lawsonmh15:
sooo... what's the point of this tool?
[Transformer TF300T Android Development] Sib64:
Sorry, but have you read correctly The Guide, I think not :(

and the OP:

The OP writer takes the pain to write a guide and another guide of guidelines for users to use properly its tool.

If certain users do not read correctly his guides, for whom are they then of use?
[Transformer TF300T Android Development] -angel*:
As you mark red you're able to restore the bootloader so you're able to go back to ICS bootloader (if you used NVFlash before), I don't get the problem :confused:
[Transformer TF300T Android Development] lawsonmh15:
Yes... It states keep files as they're your lifeline, which means there's got to be a way to revert... What am I missing here? It's a bootloader.

---------- Post added at 12:37 PM ---------- Previous post was at 12:35 PM ----------

That's what I thought... Where would I find instructions on restoring the stock bootloader?
[Transformer TF300T Android Development] -angel*:
Here is a tutorial which may help you and some other people (maybe it should be posted in the OP... ;) )
[Transformer TF300T Android Development] w0uter:
Will this eventually come to JB OTA?
[Transformer TF300T Android Development] Hammerhand.17:
Hi, I did all the process to make a backup but now I can't enter apx mode to restore it and the tablet is stuck on Asus logo; no recovery is shown, if I push vol -, it enters to bootloader mode directly (with wipe and fastboot options only). Over asus logo (if I don't push anything) it appears "AndroidRoot 9.4.3.30r01"

Any help?
[Transformer TF300T Android Development] XpLoDWilD:
Asus patched JB bootloader. We can't generate nvflash files anymore with it.

It happened to me once - random unluckyness. Just re-flash recovery through nvflash.
[Transformer TF300T Android Development] cubandanger05:
Question for you:

I got my NV files while i had ICS bootloader. How good are they now that i've upgraded to JB bootloader?
[Transformer TF300T Android Development] Sib64:
Normally not, cause you are on JB bootloader.
[Transformer TF300T Android Development] e2zippo:
Hey!

I want to update my bootloader to JB in order to install the latest CM10 but I'm having trouble getting into fastboot it seems, I get stuck on "Starting Fastboot USB download protocol.

Any ideas?

I have TF300 with ICS bootloader and TWRP custom revocery.

Cheers!

Edit: sorry, I just figured out it's supposed to say that and then stay there, however, when i try to run the command

"fastboot -i 0x0b05 flash staging ebtblob.bin" it just says "waiting for device", and fastboot is visible in Devices & Printers as "fastboot" so the drivers should be ok.

Edit: solved! I downloaded the newest version of fastboot that comes with the android-sdk, and now it works.
[Transformer TF300T Android Development] mikeseguin:
i'm willing to donate one........... MILLION DOLLARS to whoever comes up with a fix for bricked tf300t tablets

:)
[Transformer TF300T Android Development] e2zippo:
Ok guys, I need some help!

I ran through the guide as I stated before, but now I'm stuck.

I'm trying to install JB stock firmware, but I get stuck on the Asus screen with "Androidroot 9.4.3.30r01" in the left upper corner.

I have CWM ICS installed and that's what I've tried flashing with.

The installation seems to go well, but I never make it past the Asus screen no matter what I do.

I tried flasing the JB recovery, thinking that I now have JB bootloader, but that one doesn't even start.

I also tried using fastboot to restore stock (http://www.theandroidsoul.com/how-to-restore-asus-transformer-tf300t-back-to-stock/) and thus getting the JB bootloader but the file transfer keep failing, stating invalid size.

What to I do?

Cheers!

Edit: solved it, finally managed to push a file via adb to the device and then flash with CWM.
[Transformer TF300T Android Development] Kenneth.Torres:
So, im on the part where it says to execute the wheelie.exe by typing in "$wheelie --blob blob.bin" but when i type that in it says failed to open it up. Also i dont see just a "blob.bin" file in the nvflashpack, i see an ebtblob.bin file. Am i missing a file?
[Transformer TF300T Android Development] dragonnn:
You should get the file in the unlocking procces, read the instruction again, this file is specfic for ever device, you can not use it from other device.

Wysyłane z mojego ASUS Transformer Pad TF300T za pomocą Tapatalk 2
[Transformer TF300T Android Development] wheelerr:
@Kenneth.Torres - I'm having the same problem. I can boot into apx mode but when I run the wheelie command I get a "Failed to open blob file: blob.bin"

not sure what to do next.
[Transformer TF300T Android Development] rpicaso:
So who has used this to recover from any kind soft brick?

Anyone? I'd really like to know since the devs don't seem to want to be forthcoming about some sort of instructions on how to use it to recover our devices. I would also recommend that ALL donations to the devs be withheld until they give us something on this matter. This is a really good Idea/project if it actually works and should be encouraged through donations, but not for what more or less is half a solution to possible problems (e.g bricked devices) How many donations do the devs need to put together a recovery guide? is that why there isn't one yet? hmm? I mean seriously, did I miss something somewhere in another devices forum on how to use wheelie?? Not trying to be an *ss just want to know how to use this info/tool.:rolleyes:
[Transformer TF300T Android Development] Nekromantik:
I have got the 8 files, is there any way to confirm these files are correct and not corrupt?
[Transformer TF300T Android Development] Sib64:
Which 8 files?

Could you listed their, please?
[Transformer TF300T Android Development] Nekromantik:
blob.bin

blob.txt or blob.log

bootloader.ebt

create.bct

recovery.bct

bricksafe.img

factory-config.img

unlock-token.img

edit:

:(

I made a HUGE mistake. I went through the procedure to create my backup files using NVFlash and then upgraded to JB using the official firmware zip and now I have lost the androidroot bootloader so my files are now worthless as they cant be used.
[Transformer TF300T Android Development] Jamalsid:
I don't think that is a mistake. I thought once you have gone through the NVFlash procedure and got the files you can use these to revert the bootloader? At least that is my understanding of it but having flashed the JB bootloader before NVflash was availbale I cannot test.
[Transformer TF300T Android Development] Nekromantik:
Yeah I read something after and found out it was not a mistake. :)

There is no documentation on how to restore it though.
[Transformer TF300T Android Development] rpicaso:
Exactly, no documentation.. Seriously, come on Rayman.. give us at least a basic restore guide from the dev..:laugh:

Nekromantik, you could always try this procedure: http://xdaforums.com/showthread.php?t=1962350
[Transformer TF300T Android Development] Nekromantik:
Ah nice one. :)

Not going to try it just yet though.
[Transformer TF300T Android Development] iluvamk:
has anyone actually tried to go from ics bootloader to jb and then back to ics?
[Transformer TF300T Android Development] Sib64:
You cannot do it, except if you want a brick ;)
[Transformer TF300T Android Development] iluvamk:
Then why does the Dev say u can? Just asking.

Sent from my Sourcerized Battle Droid
[Transformer TF300T Android Development] Sib64:
Where have-you seen it?

I have just reread the OP and the site

"androidroot"

, and I saw nothing :confused:
[Transformer TF300T Android Development] mikaole:
Xplowild have done it many times as he has written in his thread. If you have the NVflash files you can go back to ICS with them. You just have to flash back all parts as far as I understood him.