Database Info

with TWRP for JB,no rom worked,help!

my English is poor,apologize
I have a tf300t(bought from US,I am a chinese),it isn't unlocked until update to stock JB(i update to 4.1.1from OTA,locked),but after unlocked,I flash the CWM 5.5.0.4,but it didn't work.Then i flash the TWRP 2.2.1.3 for JB only(http://forum.xda-developers.com/showthread.php?t=1843694),it worked.But after i flash the fireware "ASUS-ICS-HYDRO-PONIC"(http://forum.xda-developers.com/showthread.php?t=1750861),after reboot,the device hanged at the asus logo for a long time(i watched it for even 10 minutes.....),so i tried the stock rom(download from ASUS site,US_epad-user-9.4.3.30.zip)but it didn't word too.Now my tf300t can't boot to the OS,it only can get into the recovery(TWRP2.2.1.3 for JB).somebody help me......,I wonder if it is the update from OTA to cause my problem)

There are others in the same situation. Keep watch on this thread http://forum.xda-developers.com/showthread.php?p=30516010
And others. There should be a fix soon to downgrade back to ICS and start over. Hang in there and be patience. At least you can get into TWRP so there's still hope.
Sent from my Nexus S 4G using Tapatalk 2

DMardroid said:
There are others in the same situation. Keep watch on this thread http://forum.xda-developers.com/showthread.php?p=30516010
And others. There should be a fix soon to downgrade back to ICS and start over. Hang in there and be patience. At least you can get into TWRP so there's still hope.
Sent from my Nexus S 4G using Tapatalk 2
Click to expand...
Click to collapse
thanks a lot,i think i must be patient for a while.just like you said,i can get into TWRP,there is still hope.

jijitax4 said:
...it isn't unlocked until update to stock JB(i update to 4.1.1from OTA,locked),but after unlocked...
Click to expand...
Click to collapse
So you used unlock tool on JB, and it worked?
That's handy to know anyways...

mozyman said:
So you used unlock tool on JB, and it worked?
That's handy to know anyways...
Click to expand...
Click to collapse
yes it worked,my tf300t is unlocked,there is the word"this device is unlocked" on the asus logo screen.but it can't load os.

So I wonder if maybe you would have luck wiping and trying to install a jb based ROM like cm10? Since you're already on jb firmware its understandable that an ICS ROM fails... I'm by no means an expert but just someone considering an unlock after JB ota
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

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

zeiroe said:
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
thanks a lot!!! it worked! i can enter the OS jb again!,thank you very much!Hope this can help others just like me.
but there is another question,can i flash other fireware like cm10 or downgrade the TF300T now?I do not like the JB OS,it is bed support on flash video.I need it.

jijitax4 said:
thanks a lot!!! it worked! i can enter the OS jb again!,thank you very much!Hope this can help others just like me.
but there is another question,can i flash other fireware like cm10 or downgrade the TF300T now?I do not like the JB OS,it is bed support on flash video.I need it.
Click to expand...
Click to collapse
Not yet. This fix is in the works. The new custom recoveries need to be modified for OTA JB first. Keep an eye on the development threads.
Sent from my Amazon Kindle Fire using Tapatalk 2

So if you put all these steps together...
1. Update to JB using OTA
2. Unlock
3. Flash TWRP
4. Flash extracted blob
You have an unlock/custom recovery method for those of us on JB am I correct?
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

TheAdamizer said:
So if you put all these steps together...
1. Update to JB using OTA
2. Unlock
3. Flash TWRP
4. Flash extracted blob
You have an unlock/custom recovery method for those of us on JB am I correct?
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Click to expand...
Click to collapse
yes exactly! but you need flash the TWRP again after flash the extracted blob,or it will be the stock recovery.and then you can flash the ROOT.zip.So the device will be rootd.

asus tf300 unlocked bootloader with jb. how to downgrade to ics?

already rooted. is there a step by step to downgrade to ics. really miss my flash player. can't get it to work on jb.

There is not a way to downgrade at the moment if you are running the OTA JB.
Btw flash can still work with JB using the stock browser. Here's a copy of the recent flash player if you need it
https://www.box.com/shared/b58c065aae3988d53e04
Sent from my ASUS Transformer Pad TF300T using Tapatalk 2

DMardroid said:
There is not a way to downgrade at the moment if you are running the OTA JB.
Btw flash can still work with JB using the stock browser. Here's a copy of the recent flash player if you need it
https://www.box.com/shared/b58c065aae3988d53e04
Sent from my ASUS Transformer Pad TF300T using Tapatalk 2
Click to expand...
Click to collapse
I would think to truly do this, you would need to flash the bootloader, system, and recovery all at the same time so everything is in sync with ICS, just not worth it.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

funnel71 said:
I would think to truly do this, you would need to flash the bootloader, system, and recovery all at the same time so everything is in sync with ICS, just not worth it.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Click to expand...
Click to collapse
Well, can't we just download the latest ICS factory image from Asus? Or would the bootloader prevent us from even using the factory ICS image?

naddie said:
Well, can't we just download the latest ICS factory image from Asus? Or would the bootloader prevent us from even using the factory ICS image?
Click to expand...
Click to collapse
When I was locked, I tried to take the zip and put it in internal storage. It installed the downgrade as it called it, but when done, I was still on jb. I would think if you're on jb and force flashed the ICS blob it would possibly brick the device because jb has different permissions and from what I've read a different partition table all together.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

funnel71 said:
When I was locked, I tried to take the zip and put it in internal storage. It installed the downgrade as it called it, but when done, I was still on jb. I would think if you're on jb and force flashed the ICS blob it would possibly brick the device because jb has different permissions and from what I've read a different partition table all together.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Click to expand...
Click to collapse
I don't believe it has a different partition table but even if it did, asus blobs include the partition table in every update so that wouldn't be an issue, the issue however is that you cannot download the bootloader, the bootloader is now signed seperately to the rest of the update to prevent abuse like what we did with the tf201 to obtain nvflash access. When you unlock the bootloader signature remains enabled while the blob flashing signature check is disabled. This has a side effect of preventing downgrades as the bootloaders pre-JB do not have this same signing mechanism in place.

funnel71 said:
When I was locked, I tried to take the zip and put it in internal storage. It installed the downgrade as it called it, but when done, I was still on jb. I would think if you're on jb and force flashed the ICS blob it would possibly brick the device because jb has different permissions and from what I've read a different partition table all together.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Click to expand...
Click to collapse
I actually attempted to downgrade last night. Quite frankly, I think that I came close o a few soft bricks. I tried flashing a custom ICS rom...no go. I tried loading the firmware from the Asus website to the root of the SD card and restart...no go. I tried force flashing the firmware using recovery mode, and it completed "successfully." When I rebooted...no go...and no ROM. This is when I started getting worried, because when I tried to boot into recovery, I received a red error message saying that there was a mismatch. I hard rebooted again, and booted into recovery, and reflashed my JB Rom. I did everything BUT use fastboot to load an ICS recovery image. I didn't want to take that risk.
My suggestion....leave it alone. I am leaving it to the experts. And if you are not an expert, then LEAVE IT TO THEM TOO!

aarsyl said:
I actually attempted to downgrade last night. Quite frankly, I think that I came close o a few soft bricks. I tried flashing a custom ICS rom...no go. I tried loading the firmware from the Asus website to the root of the SD card and restart...no go. I tried force flashing the firmware using recovery mode, and it completed "successfully." When I rebooted...no go...and no ROM. This is when I started getting worried, because when I tried to boot into recovery, I received a red error message saying that there was a mismatch. I hard rebooted again, and booted into recovery, and reflashed my JB Rom. I did everything BUT use fastboot to load an ICS recovery image. I didn't want to take that risk.
My suggestion....leave it alone. I am leaving it to the experts. And if you are not an expert, then LEAVE IT TO THEM TOO!
Click to expand...
Click to collapse
Good suggestion haha - now I have been reading about nvflash being usable for the tf300, but only if you were on the ICS bootloader, wondering if you can do an nvflash type backup - don't know much about it - but after backup, upgrade to jb, then use backup to return to ICS...
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

I tried every method out there to get back to ICS. So there is no way. Tried fastboot, tried adb, tried wolfs downgrade method, tried restoring a backup with CWM and TWRP and many more. So unfortunately there is no way, but Scotts and Seanz Roms were the best Roms on ICS, so I think I dont have to, cause I have the best Roms to choose.
Only thing missing is NVflash and OC (its been working on )

Have you tried erasing everything
mikaole said:
I tried every method out there to get back to ICS. So there is no way. Tried fastboot, tried adb, tried wolfs downgrade method, tried restoring a backup with CWM and TWRP and many more. So unfortunately there is no way, but Scotts and Seanz Roms were the best Roms on ICS, so I think I dont have to, cause I have the best Roms to choose.
Only thing missing is NVflash and OC (its been working on )
Click to expand...
Click to collapse
I recently just restored my bricked Tf300 by using these commands from fastboot thanks to user Buster99
fastboot erase system
fastboot erase recovery
fastboot erase userdata
fastboot erase boot
fastboot erase misc
fastboot erase cache
fastboot -i 0x0B05 flash system c:\adt-bundle\platform-tools\blob (this is my path - your's may vary depending where you stored your blob)
fastboot -i 0x0B05 reboot
this completely erased my system, fixed my bootloo and brought it back to stock. Can there be a way to erase the bootloader this way???
Link to how i recovered "http://forum.xda-developers.com/showthread.php?p=45386598#post45386598"

Custom Recovery

Can a moderator rename this thread to "A Few Questions"?
Sent from my HTC Rezound

Never mind. I now understand how to unlock, flash recovery and flash a ROM.
Now that that's out of the way...
Would one recommend doing a system wipe on stock before unlocking and flashing recovery and ROM?
Is TWRP accepted to be the best custom recovery?
After unlocking, flashing recovery, and flashing ROM, all I will have to do to root is flash the root files, correct? Since I'll be unlocked.
After flashing CleanROM, should I do a system wipe (will it work the same way it does on stock but with CleanROM instead?)
Now what I am wondering is how I use that overclocked kernel I've been reading about, with CleanROM.
Sent from my HTC Rezound

Bump.
Sent from my HTC Rezound

Most ROM devs will tell you to wipe data before you install their ROM to be sure there is no old stuff left that could be incompatible.
TWRP is a good recovery, and so far I am happy with it - didn't try the current CWM though.
For (re-)gaining root, you just start your recovery and flash a superuser zip, e.g. SuperSU. If you flashed a pre-rooted ROM, you don't even need that.
If you wiped before installing CleanROM, you don't need to wipe again afterwards.

_that said:
TWRP is a good recovery, and so far I am happy with it - didn't try the current CWM though.
For (re-)gaining root, you just start your recovery and flash a superuser zip, e.g. SuperSU. If you flashed a pre-rooted ROM, you don't even need that.
Click to expand...
Click to collapse
Is there any specific version of TWRP I should use?
Is there a pre-rooted version of CleanROM?
Sent from my ASUS Transformer Pad TF700T

Joeful said:
Is there any specific version of TWRP I should use?
Is there a pre-rooted version of CleanROM?
Sent from my ASUS Transformer Pad TF700T
Click to expand...
Click to collapse
I just installed the latest TWRP over CWM recovery using GOO.
I find the touch version features of twrp easier
...and yes CleanROM 2.3 is already rooted.

Thats OK said:
I just installed the latest TWRP over CWM recovery using GOO.
I find the touch version features of twrp easier
...and yes CleanROM 2.3 is already rooted.
Click to expand...
Click to collapse
Thank you. You've been a big help!

[Bootloader] [Android 4.2] JOP40C Bootloader version 4.13 flashable in recovery

Update: This bootloader is older and is not the newest available one. If you want the 4.18 version one go to THIS post and flash it with fastboot.
Older bootloader version: Doesn't flash and take hold for everyone, flash at your own risk
Usefull for people that don't want to flash in fastboot. The official OTA for 4.2 flashes this bootloader through recovery in the exact same manner
Code:
md5sum: 7cb16bc418e15ee2c7c48b82ea923e23
Code:
sha1sum: 6151d4afd075d03cfdfa33d111a1a6bba25fcab8
Code:
sha256sum: 2b7efeade37c1ec00d03ba71a56d5b921e6c27d4393298020bcd1601ae079605
Code:
sha512sum: cd7444ec7073e553b7715e4ee30d69f64b06ab3846f1d0ff3d9129f652ab4e90c3400f139a0347f0b78a0719c86b6e2d7f41d36068f032472dbc90c3530cefcb

You need to be aware that on my Nexus7 the problem with Custom Recovery on the newest bootloader still exist.
Means you need to downgrade to 3.34 in order to flash CWM.

remmyhi said:
You need to be aware that on my Nexus7 the problem with Custom Recovery on the newest bootloader still exist.
Means you need to downgrade to 3.34 in order to flash CWM.
Click to expand...
Click to collapse
I need to be aware of problems that happens on your Nexus7? I don't have that issue I flashed TWRP Recovery just fine on this booloader...

No, I did not write to you personally. Glad it worked on your side.
Just the people to know.

That's really strange. I would try flashing the 4.1.2 factory images even though it might wipe everything including your sdcard.
Sent from my Nexus 7 using Tapatalk 2

Did that, thanks. Indeed wiped everything
Glad I had a backup

Hey guys,
So, I can flash this file from TWRP and it will upgrade my bootloader?
Thanks in advance!

you can, but make sure you check MD5, flashing a corrupt download can kill your device. OP, you should add a MD5 check in the zip if possible. but thanks for this none the less.

If you have a rom like cm10 installed or other rom that has buysbox in it, just type busybox md5sum /sdcard/bootloader-grouper-4.13.zip
Either in terminal emulator or adb shell.
If your on stock you'll probably want to check it with a program on your pc or install busybox from one of the playstore busybox apps. Of course you'll need to be rooted.
Sent from my Nexus 7 using Tapatalk 2

I went ahead and added sha1sum, sha256sum and sha512sum checks.

I have just flashed the file and thank you, I no longer have to keep my power button pressed for 20 seconds just to have my tablet go on
Thank you so much!!!

If anyone has any problems there is a link in my SIG to fix it or if you just need to revert back...

Just a FYI the older bootloaders are in the factory images! You can extract them out and flash the bootloader separately if you don't want to flash ALL the factory images. So far flashing this with twrp I have not had one single issue yet to speak of... Each bootloader is meant to run on specific platforms, recoveries, kernels ect. So on that note I still suggest if you want to revert your bootloader you revert completely with the factory images.
Sent from my Nexus 7 using Tapatalk 2

Hi,
thanks for that but when i falsh it in TWRP it's wipe all my data but i still have the 3.41 bootloader?
I'm not sure if i understood the thing to do with the md5sum?

f*** this bootloader i flash it yesteday.........
and my tablet stay on bootloader and i can't flash google image 4.1.1-4.1.2-4.2
why??
i can't downgrade bootloader too.........

CWM + CM10 stable
I just flashed this bootloader using CWM 6.0.1.0 and CM10 stable. I used Chrome to download it and the md5sum command in terminal emulator to check the md5 hash before hand. It flashed fine, I have the new version number, everything continues to work. Very easy.

farshad.shirzadii said:
f*** this bootloader i flash it yesteday.........
and my tablet stay on bootloader and i can't flash google image 4.1.1-4.1.2-4.2
why??
i can't downgrade bootloader too.........
Click to expand...
Click to collapse
Check this http://forum.xda-developers.com/showpost.php?p=32735541&postcount=5039

Thanks, easy flash, works perfectly
Sent from my Nexus 7 using xda app-developers app

Wondering does the new boot loader support older custom ROMs and the nexus toolkit, will I need to re unlock bootloader after flashing it ?
Answered my own questions flashed with cwm still have root but don't know how to check if boot loader is locked or what version I have. Works fine with cm10.
Sent from my Nexus 7 using xda premium

blucmal said:
Wondering does the new boot loader support older custom ROMs and the nexus toolkit, will I need to re unlock bootloader after flashing it ?
Answered my own questions flashed with cwm still have root but don't know how to check if boot loader is locked or what version I have. Works fine with cm10.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
When you power your device on you hold the volume down button to get into bootloader. On the main screen it will say what version it is.
Sent from my Nexus 7 using Tapatalk 2

HTC one x question about twrp

Hello. I am new to the HTC one x coming previously from an HTC inspire. I am with att. I followed the directions and unlocked the bootloader. I have been reading and noticed S-Off is still being worked on. I'm Confused on what my next step is to load a custom ROM. Sorry I know this has probably been answered but I'm still confused. Can I do the next set of steps without a computer and just do it from my phone? I downloaded an app called recovery manager not sure of that will help me out. Thanks for any help you guys can provide. I'm on 2.20 and 4.0.4 thanks again.
Sent from my HTC One X using xda app-developers app

I think at that time after unlock of the bootloader you will need to install a recovery software the one we use is TWRP i would stick with 2.2.0.0 and install it thought goomanager that is avaliable though the play store.
Instructions : http://forum.xda-developers.com/showthread.php?t=1677447

To use goomanager I need to be rooted though right?I don't think I'm rooted. Farthest I have gotten so far is unlocking the bootloader. And I'm not sure what to do after that. I'm not sure if I can do the rest from my phone (which I hope I can). Thanks ks for your help.
Sent from my HTC One X using xda app-developers app

You'll have you fastboot flash SU.. I don't remember where to get the file or the command.... Sorry
Sent from my One X using Tapatalk 2

unlock bootloader, flash twrp in fastboot, then flash file below in twrp
CWM-SuperSU-v0.98.zip

DvineLord said:
unlock bootloader, flash twrp in fastboot, then flash file below in twrp
Click to expand...
Click to collapse
Do you absolutely have to flash SuperSU to flash ROMs? Can you just go right from TWRP and flash a rooted ROM and be considered as "rooted"?
Thanks

Lunatic00 said:
Do you absolutely have to flash SuperSU to flash ROMs? Can you just go right from TWRP and flash a rooted ROM?
Thanks
Click to expand...
Click to collapse
Hmmm I'm pretty sure you can flash a rooted Rom

Lunatic00 said:
Do you absolutely have to flash SuperSU to flash ROMs? Can you just go right from TWRP and flash a rooted ROM and be considered as "rooted"?
Thanks
Click to expand...
Click to collapse
You can just flash a custom ROM, which will have SuperSU or SU cooked in. Only need to flash SuperSU if you want to stay on stock ROM and have root.

you made your situation sound different. the steps i take is use my token, flash recovery, then flash a rom or supersu depending if i want a custom rom or keep using stock.