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[TIP] Downgrade from JB to 0.30 works!

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b3z

Member
Apr 10, 2011
39
12
Melbourne
G'day guys, I won't go into too much detail but as I lost root by updating OTA to JB I have been successfully able to downgrade the firmware to 0.30 (and bootloader evidentially)

WARNING: YOU WILL LOSE ALL DATA ON INTERNAL STORAGE, IM NOT RESPONSIBLE FOR BRICKS, TRY AT OWN RISK!
WARNING: DO NOT TRY TO WIPE DATA FROM THE BOOTLOADER WHILST A CUSTOM RECOVERY IS INSTALLED, YOU WILL BRICK YOUR TABLET MAKE SURE YOU ARE RUNNING THE STOCK JB/ICS BOOTLOADER BY FLASHING THE ASUS BLOB PACKAGE FIRST!

You must have unlocked bootloader and be running the latest firmware 10.4.4.16

Procedure
1) Download 0.30 update from Asus website: http://www.asus.com.au/Tablet/Transformer_Pad/ASUS_Transformer_Pad_Infinity_TF700T/#download
2) extract the blob file from inside the second zip, put in your ADB/FASTBOOT directory
If you don't have fastboot download it here http://www.mediafire.com/?nbw2ofv3xd5s35l
3) Reboot tablet into bootloader (ON + VOLDOWN) then select fastboot mode
4) type command: fastboot -i 0x0b05 flash system blob
5) wait for ages....
6) the install will hang on the spinning asus diagram
7) reboot into bootloader and select the "wipe data" (same menu as where fastboot is)
8) should reboot automatically and you should have sucessfully downgraded to ICS 0.30

Hope it also works for you.
 
Last edited:

tbtaf

Senior Member
Feb 10, 2011
111
14
Tampa, Fl.
Has anyone tried this method to downgrade to .26 from .30?

Ok, confirmed, it doesn't work to revert to .26. You get signature mismatch. I gave it a shot :)

Now, if I upgrade to JB and downgrade can I go to .26? Hmmm, might give it a whirl.
 
Last edited:

TheAnarchist1

Senior Member
Mar 14, 2010
384
182
Baltimore
Guys, can we move this to development? I personally believe it would be a great help to many over there. It saved my backside. I can tell you that! Great threat here!:laugh:
 

androidxen

Senior Member
Aug 18, 2010
171
48
Uh, I can't access fastboot anymore with the JB update. It comes up as unknown device. I have installed the Naked Drivers and have had it installed for awhile with no problems.

The cmd sticks to < waiting for device >.
 

160bpm

Senior Member
Apr 23, 2008
588
18
Amsterdam
www.oudenes.photography
Can you create a zip with the right ADB/FASTBOOT drivers? I have try many but my tablet is not showing when i do FASTBOOT DEVICES

---------- Post added at 06:06 AM ---------- Previous post was at 05:58 AM ----------

Uh, I can't access fastboot anymore with the JB update. It comes up as unknown device. I have installed the Naked Drivers and have had it installed for awhile with no problems.

The cmd sticks to < waiting for device >.

same here
 

b3z

Member
Apr 10, 2011
39
12
Melbourne
ADB/FASTBOOT folder? Sorry, haven't really fooled around much with my TF700, except for getting root. (and then loosing it like an idiot when I rushed to upgrade to JB)

1) To be able to use this fastboot method you need to have installed the android-sdk (google it) with the platform-tools package and also the Google USB drivers (i think it is in the extras package)

1A) Alternatively download this package, it contains the ADB/FASTBOOT application... not sure about the correct drivershttp://www.mediafire.com/?nbw2ofv3xd5s35l

2) Inside this package are two executables called adb and fastboot. Using windows command prompt you will have to navigate to the folder that contains these two executables and type "fastboot devices" if you have your TF700 plugged in and in fastboot mode you should see a few numbers and you're ready to go!
 
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Accophox

Senior Member
Nov 27, 2010
172
24
Edmonton
1) To be able to use this fastboot method you need to have installed the android-sdk (google it) with the platform-tools package and also the Google USB drivers (i think it is in the extras package)

1A) Alternatively download this package, it contains the ADB/FASTBOOT application... not sure about the correct drivershttp://www.mediafire.com/?nbw2ofv3xd5s35l

2) Inside this package are two executables called adb and fastboot. Using windows command prompt you will have to navigate to the folder that contains these two executables and type "fastboot devices" if you have your TF700 plugged in and in fastboot mode you should see a few numbers and you're ready to go!

Oh, well, then I'm an idiot. I thought it was a /system/fastboot or something silly that asus decided to do. :D Simple enough.
 

0x000

Senior Member
Sep 2, 2010
138
20
does the "wipe data" feature of the stock recovery really delete the whole internal storage or does it leave the internal sdcard partition intact? i forgot to make a backup of this part (only my apps through titanium) and now my JB upgrade failed and i don't want to lose all my pictures and stuff :)
 

androidxen

Senior Member
Aug 18, 2010
171
48
does the "wipe data" feature of the stock recovery really delete the whole internal storage or does it leave the internal sdcard partition intact? i forgot to make a backup of this part (only my apps through titanium) and now my JB upgrade failed and i don't want to lose all my pictures and stuff :)

It does. I made that mistake too, lost my notes for the year so far... :banghead:

Sent from my Incredible 2 using xda app-developers app
 

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  • 5
    G'day guys, I won't go into too much detail but as I lost root by updating OTA to JB I have been successfully able to downgrade the firmware to 0.30 (and bootloader evidentially)

    WARNING: YOU WILL LOSE ALL DATA ON INTERNAL STORAGE, IM NOT RESPONSIBLE FOR BRICKS, TRY AT OWN RISK!
    WARNING: DO NOT TRY TO WIPE DATA FROM THE BOOTLOADER WHILST A CUSTOM RECOVERY IS INSTALLED, YOU WILL BRICK YOUR TABLET MAKE SURE YOU ARE RUNNING THE STOCK JB/ICS BOOTLOADER BY FLASHING THE ASUS BLOB PACKAGE FIRST!

    You must have unlocked bootloader and be running the latest firmware 10.4.4.16

    Procedure
    1) Download 0.30 update from Asus website: http://www.asus.com.au/Tablet/Transformer_Pad/ASUS_Transformer_Pad_Infinity_TF700T/#download
    2) extract the blob file from inside the second zip, put in your ADB/FASTBOOT directory
    If you don't have fastboot download it here http://www.mediafire.com/?nbw2ofv3xd5s35l
    3) Reboot tablet into bootloader (ON + VOLDOWN) then select fastboot mode
    4) type command: fastboot -i 0x0b05 flash system blob
    5) wait for ages....
    6) the install will hang on the spinning asus diagram
    7) reboot into bootloader and select the "wipe data" (same menu as where fastboot is)
    8) should reboot automatically and you should have sucessfully downgraded to ICS 0.30

    Hope it also works for you.
    5
    Here's the US version...

    https://dl.dropbox.com/u/21818788/EP201_768_SDUPDATE.zip

    This is US_epad_user_9_4_5_30_20120907 already renamed to be flashed with stock recovery.
    1
    It won't work. You will get a signature mismatch. It seems to work between JB & 0.30

    I can confirm this does work and does revert the bootloader.
    1
    ADB/FASTBOOT folder? Sorry, haven't really fooled around much with my TF700, except for getting root. (and then loosing it like an idiot when I rushed to upgrade to JB)

    1) To be able to use this fastboot method you need to have installed the android-sdk (google it) with the platform-tools package and also the Google USB drivers (i think it is in the extras package)

    1A) Alternatively download this package, it contains the ADB/FASTBOOT application... not sure about the correct drivershttp://www.mediafire.com/?nbw2ofv3xd5s35l

    2) Inside this package are two executables called adb and fastboot. Using windows command prompt you will have to navigate to the folder that contains these two executables and type "fastboot devices" if you have your TF700 plugged in and in fastboot mode you should see a few numbers and you're ready to go!
    1
    The actual link to .30 ICS are broken and WW version points to a ClockWidgets.rar file!?

    Can a US version be flashed on a WW tablet?

    You can get the 9.4.5.30 firmwares from here - - > http://forum.xda-developers.com/showthread.php?p=33037501

    Sent from my ASUS Transformer Pad TF700T using Tapatalk HD