Attend XDA's Second Annual Developer Conference, XDA:DevCon 2014!
5,770,247 Members 51,131 Now Online
XDA Developers Android and Mobile Development Forum

Real fix for thinkpad tablet boot loop!

Tip us?
 
aliakg56
Old
#1  
Junior Member - OP
Thanks Meter 4
Posts: 3
Join Date: May 2009
Thumbs up Real fix for thinkpad tablet boot loop!

Introduction
OK. the story is I was on Thinkpad Tablet A 400-03-0070-0132-ROW, I decided to taste CM10 by Koshu, Thank you Koshu!), I accessed Root by RootDebugfs script! (Folow this instruction: http://forum.xda-developers.com/show....php?t=1706588)
Then I installed CWM and backup my tablet, then after install CM10. (Folow this instruction: http://forum.xda-developers.com/show....php?t=1846044 , Thanks Koshu again)
Everything was fine. thanks Koshu again !
Then I decided to back to my stock ROM, My backup was corrupted!!!!!! YES! and Thinkpad tablet went to BOOT LOOP.
Finally I solve it after 3 day's experiments! I repeated my experiment and I was successful as many times as I repeated. Then I decide to share my solution to anyone.
It works for any Thnkpad Tablet (US,ROW,WE,...) but at the end you will have A 400-03-0070-0132-ROW, but you can repeat to ROOT, CWM and CM10 again

Before Start

1) your tablet is Thinkpad Tablet and stocked in the boot loop.
2) your tablet partition 4EBT is not lock by factory (you will learn if it is!)
3) after this instruction your tablet cure completely and you will have A 400-03-0070-0132-ROW version, not Rooted but you can access root later (RootDebugfs) and also you can do anything, also you can brick it again and this will solve it again !!!!
4) at each step, if you don't know the meanings, just search this forum.

Instruction:
1) download nvFlash + driver + CMW files + my script (included at the end).

2) put your tablet in the APX mode:
yes, you are at boot loop, but you can push the power button for 10sec. you will be off for a while, instantly push rotation lock key then add power button, wait for 2 second and release both buttons, you are at APX mode now, at the device manager of your control panel you can see APX installed.

3) install APX drivers:
if device start to loop before installing driver go to 2.
install driver from downloded files, drivers folder. windows say something! ignore it! and install driver

4)now we start to put recovery image to your SOS partition, it can help the device come back from loop!
(learn how to go into APX mode)
run my scrip from downloded files (alikghp.bat)
choose install CWM5.0,
go to APX mode and wait.
you will see big PASS on your device.

5) copy
a. clockworkmod folder and it's content
b. ThinkPadTablet_A310_02_0039_0089_ROW.zip
c. ThinkPadTablet_A310_03_0069_0121_ROW.zip
d. ThinkPadTablet_A400_03_0070_0132_ROW.zip
from downloaded files to a SDcard and insert SDcard to your tablet.

6) turn off your device, go to recovery mode (power (after vibration release power, push Vol.up 2 or 3 times), you will see the CWM recovery.
YES you break the DEVIL's LOOP!

7) use Vol.up, Vil.down and power to choose -backup and restore, then
-restore from external sdcard.
the -yes.
be patient and wait until to end.


8) at CWM's main menu choose -install zip from sdcard. then
-choose zip from external sdcard.
-choose ThinkPadTablet_A310_02_0039_0089_ROW.zip

9) again run alikghp.bat but this time
choose install OriginalRecovey
after see the big PASS...

10) turn off, and turn on to recovery mode again.
choose wipe data/factory reset. wait until finish.
choose reboot system now.

11) your tablet back to life. with A310_02_0039_0089_ROW !!! wait until it it's jobs done!

12) turn off and turn on to recovery mode again. choose apply update from external storage.
choose ThinkPadTablet_A310_03_0069_0121_ROW. after finishing reboot and wait wait until it it's jobs done!
repeate this step and
choose ThinkPadTablet_A400_03_0070_0132_ROW after finishing reboot and wait wait until it it's jobs done!

it's done.
now you can root and install CM10 again, (refer to Introduction above) BUT this time make sure your Nandroid backup is healthy and pull it on your hard disk to safety.

================================================== ============================
Download files here:
https://drive.google.com/file/d/0B5c...it?usp=sharing
================================================== ============================

ENJOY!!! By:Ali Ghodratipour
The Following 3 Users Say Thank You to aliakg56 For This Useful Post: [ Click to Expand ]
 
m7mdrda
Old
#2  
Junior Member
Thanks Meter 1
Posts: 28
Join Date: Apr 2009
when using nvflash and type "sync" i got this

error: rcm version 0X4 Command send failed (usb write failed)

is this mean that my tablet partition 4EBT is lock by factory and i can't use this method
 
aliakg56
Old
#3  
Junior Member - OP
Thanks Meter 4
Posts: 3
Join Date: May 2009
Quote:
Originally Posted by m7mdrda View Post
when using nvflash and type "sync" i got this

error: rcm version 0X4 Command send failed (usb write failed)

is this mean that my tablet partition 4EBT is lock by factory and i can't use this method
I guess this problem may come from 2 area.
1) are you sure that you have installed nvflash drivers properly?
2) do you install Bootloader on your 4EBT partition, because you have to do it before any command sending?

check the following post (thanks suntechnic!) to learn more about nvflashing.

http://forum.xda-developers.com/show....php?t=1745450
The Following User Says Thank You to aliakg56 For This Useful Post: [ Click to Expand ]
 
gharib madrid
Old
#4  
Junior Member
Thanks Meter 0
Posts: 1
Join Date: Jul 2014
Default Thank you ali

i did every thing you said in your post .... i have a bricked thikpad tablet stay in logo when start and have a bricked recovery mode but when i used your methode my tablet don't wont to enter in recovery mode again when i hold start button and push the vol up twice i see on top booting recovery kernal image and my tablet restart after that
i think my bootloader is unlocked but i dont know how to use nvfash so please help me i don't know what i will do please is there a solution
if you have solution i can give you permission to enter to my pc and do what ever you want to do just please help me
Tags
boot, fix, loop, revocery
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes