What do you mean with loosing the connection? Is the adb driver installed correctly? Where did you get it from? Is it an genuine lenovo driver? If so, than you shouldn't worry!
Perhabs it's the MTP driver, that is missing when you boot into recovery? If it's the adb driver, than you should try jlove's method.
In addition I wanted to inform you, that the new method worked for me, too! Even with some complications... by this way, thanks again to
opdecirkel!
Because the run.bat script did't worked correctly, I had to do it manually. So I put the "yareftpt" on C:\\, started cmd.exe, booted the TPT into recovery and changed the directory in cmd.exe with "cd.." to "cd yareftpt" ...followed the instructions with the update...
echo 4. Reboot in RECOVERY: (shutdown the tablet, then start it and press volume + few times until it starts in recovery)
echo 5. Go to apply update, select the update from the sdcard and try to apply it. It will fail, but that is OK.
echo 5. Then, go to 'WIPE CACHE PARTITION' and select it (navigate with volume buttons and select it with power button),
echo 6. When wipe cache complete, press (here) ^<ENTER^>.
and after that I copied the first line of the script into cmd and executed. I did it line after line, just to the next step. (dark green= copy line after line, paste and execute)
adb shell "/system/bin/mkdir /data/local/pwn"
adb shell "/system/bin/mkdir /data/local/pwn-bak"
adb shell "/system/bin/cat /system/etc/install-recovery.sh > /data/local/pwn-bak/install-recovery.sh.orig"
adb shell "/system/bin/mkdir /cache/recovery/pwn"
adb push su /cache/recovery/pwn
adb shell "/system/bin/rm /cache/recovery/log"
adb shell "/system/bin/ln -s /system/etc/install-recovery.sh /cache/recovery/log"
adb shell "echo \"/system/bin/chmod 777 /cache\" >> /tmp/recovery.log"
adb shell "echo \"/system/bin/mount -t ext4 /dev/block/mmcblk0p4 /cache\" >> /tmp/recovery.log"
adb shell "echo \"/system/bin/chmod 777 /cache\" >> /tmp/recovery.log"
adb shell "echo \"/system/bin/mount -oremount,rw -t ext4 /dev/block/mmcblk0p4 /cache\" >> /tmp/recovery.log"
adb shell "echo \"/system/bin/chmod 777 /cache\" >> /tmp/recovery.log"
adb shell "echo \"/system/bin/chmod 777 /cache/recovery\" >> /tmp/recovery.log"
adb shell "echo \"/system/bin/chown root /cache/recovery/pwn/su\" >> /tmp/recovery.log"
adb shell "echo \"/system/bin/chmod 4777 /cache/recovery/pwn/su\" >> /tmp/recovery.log"
echo 7. On the device, go to 'DISABLE BATTERY DISCHARGE' and select it. When complete press (here) ^<ENTER^>
pause
some of commands might cause failures, but don't worry and just go on
adb shell "/system/bin/rm /cache/recovery/log"
echo 8. On the device, select REBOOT. When startup COMPLETE press (here) ^<ENTER^>
pause
adb push Superuser.apk /data/local/pwn/Superuser.apk
adb push busybox /data/local/pwn/busybox
adb push su /data/local/pwn/su
adb push pwn-in.sh /data/local/pwn/pwn-in.sh
adb shell "/system/bin/chmod 777 /data/local/pwn/pwn-in.sh"
echo Your PC command prompt appears next. Do the following things:
echo 1. adb shell
echo when '$' (adb shell) appear, do:
echo 2. /cache/recovery/pwn/su
echo when '#' appears. You are root. run the following:
echo 3. /data/local/pwn/pwn-in.sh
now you should try if you have su, even if you don't see in your app list..
download root checker, install, open and try it!
You should have root right now.
In my case, i had root, but no CWM!
So I had to install in manually, but with root it should't be a problem. you only have to download the correct cwm version:
http://xdaforums.com/showpost.php?p=21916505&postcount=71
then I installed it with the Android Terminal Emulator app, because the cmd.exe method did't worked for me. You should just follow the instructions:
or you can copy img file on /data/local/ folder of your tablet (with a file manager with root permissions)
launch "Android Terminal Emulator" application
and tape the instructions
su
mount -o rw,remount /system
echo "#!/system/bin/sh" > /system/etc/install-recovery.sh
dd if=/data/local/NameOfCWMFile.img of=/dev/block/mmcblk0p1
http://www.thinkpadtabletforums.com...nd-development/clockworkmod-recovery-for-tpt/
After a shutdown and reboot into recovery I had cwm! So I am able to do nandroid backups...
In this way, I would particularly like to thank to all devs that made the TPT root possible! Now i like my TPT 1000% more than before...e.g. no status-bar in lecture notes -> sooo great!!
