[Sony Tablet S] WonderEkin:
Thanks Yupandra2012, my Tablet S 4.0.3 r1a finally rooted.

Ref: http://xdaforums.com/showpost.php?p=31408901&postcount=12

The original steps(this link) was written in Japanese, I've just translate it into Eng. But sorry for my bad English.

UPDATE:

A semi automatic script can be found at here.

Files you need:

adb tools

SonyTabletICS-2.zip

Superuser-3.1.3-arm-signed.zip

VpnFaker.apk (Attachment)

For those who are no using the US firmware, the attached VpnFaker.apk may not suitable for your tablet.

Please follow this steps(click me) to resign the VpnFaker.apk. Thanks.

***Pls Execute the command line by line***

Unzip those files into a dir, Open cmd console, cd to that dir

Run the following command and press Restore on your tablet

adb restore settings.ab

Check the result

adb shell ls -ld /data/data/com.android.settings/a
[I][COLOR="DarkGreen"]drwxrwxrwx system system a[/COLOR][/I]

And continue, ignore the "rm -r a" permission denied error

adb shell
cd /data/data/com.android.settings
rm -r a
while : ; do ln -s /data a/file99; done

While the loop is running, open another cmd console and run

adb restore settings.ab

Once the restore process is completed, you can press CTRL+C on the 1st cmd console to break the loop

Check the /data permission

adb shell ls -ld /data
[I][COLOR="DarkGreen"]drwxrwxrwx system system data[/COLOR][/I]

Then continue

adb push busybox /data/local/tmp
adb push rootkit.tar.gz /data/local/tmp
adb push Superuser.apk /data/local/tmp
adb push su /data/local/tmp
adb shell
cd /data/local/tmp
chmod 755 busybox
./busybox tar zxf rootkit.tar.gz
exit

Push the resigned VpnFaker.apk(resign by ZipSigner 2) and update the timestamp

adb push VpnFaker.apk /data/local/tmp
adb shell
touch -t 1346025600 /data/local/tmp/VpnFaker.apk
exit

Now, replace the VpnDialogs, ignore "cp: can't open 'system/xxxxxxx': Permission denied" while you execute "/data/local/tmp/busybox cp -r system system2"

adb shell
cd /data
/data/local/tmp/busybox cp -r system system2
[COLOR="DarkGreen"]#Pls ignore "cp: can't open 'system/xxxxxxx': Permission denied"[/COLOR]
/data/local/tmp/busybox find system2 -type f -exec chmod 666 {} \;
/data/local/tmp/busybox find system2 -type d -exec chmod 777 {} \;
mv system system-
mv system2 system

mv app app-
mkdir app
mv /data/local/tmp/VpnFaker.apk /data/app

Make sure the datatime is 2012/08/27 00:00

TZ=0 ls -l /data/app
[I][COLOR="DarkGreen"]-rw-r--r-- shell shell 198580 2012-08-27 00:00 VpnFaker.apk[/COLOR][/I]

Generate the packages.xml

/data/local/tmp/busybox sed -f /data/local/tmp/packages.xml.sed system-/packages.xml > system/packages.xml

And double check the result

/data/local/tmp/busybox grep vpndialogs system/packages.xml
[I][COLOR="DarkGreen"]<updated-package name="com.android.vpndialogs" codepath="/system/app/VpnDialogs.apk" nativelibrarypath="/data/data/com.android.vpndialogs/lib" flags="1" ft="136f14be668" it="136f14be668" ut="136f14be668" version="15" shareduserid="1000">
<package name="com.android.vpndialogs" codepath="/data/app/VpnFaker.apk" nativelibrarypath="/data/data/com.android.vpndialogs/lib" flags="1" ft="1396560b400" it="1396560b400" ut="1396560b400" version="45" shareduserid="1000">[/COLOR][/I]

Exit adb shell and reboot, you should see something like "Android is updating" during startup.

exit
adb reboot

Start the injected Terminal Emulator

adb shell am start -n com.android.vpndialogs/.Term

Unlock your tabet, The Terminal Emulator should appeared. If not, post your "adb logcat".

Now, in the Terminal Emulator

id

You should see the uid is 1000(system)

Still in the Terminal Emulator, ignore the script error

/data/local/tmp/onload.sh
/data/local/tmp/onload2.sh

Now back to the cmd console

adb shell
/dev/sh
id

Check the uid is 2000(shell)

And

chown 0.0 /data/local/tmp/_su
chmod 6755 /data/local/tmp/_su
/data/local/tmp/_su
id

Check the root access uid 0(root)

Backup /system (you may just skip it)

dd if=/dev/block/mmcblk0p3 of=/mnt/sdcard/system.ext4 bs=128K

Copy su & Superuser.apk to /system

/data/local/tmp/busybox mount -o rw,remount /system
/data/local/tmp/busybox cp /data/local/tmp/_su /system/xbin
chown 0.0 /system/xbin/_su
chmod 6755 /system/xbin/_su
/data/local/tmp/busybox cp /data/local/tmp/su /system/xbin
chown 0.0 /system/xbin/su
chmod 6755 /system/xbin/su
/data/local/tmp/busybox cp /data/local/tmp/Superuser.apk /system/app
/data/local/tmp/busybox mount -o ro,remount /system
sync
exit

Check the /system _su is working or not

_su
id

Should be uid 0(root)

And move the original /data/app & /data/system back (the original steps will keep the VpnFaker.apk, but i skip it)

cd /data
mv app app2
mv app- app
mv system system2
mv system- system
exit
exit

Now, you Tablet S should be rooted.