Ya lo he flasheado pero ahora no me sale lo del root. He probado a hacerlo como dice Akilesss1 y me sale esto:
15/033/2012 16:33:47 - INFO - <- This level is successfully initialized
15/033/2012 16:33:47 - INFO - Flashtool Version 0.9.9.0 built on 2012-11-13 22:53:30
15/033/2012 16:33:47 - INFO - You can drag and drop ftf files here to start flashing them
15/033/2012 16:33:53 - INFO - Device connected with USB debugging on
15/033/2012 16:33:54 - INFO - Connected device : ST25
15/033/2012 16:33:54 - INFO - Installed version of busybox : N/A
15/033/2012 16:33:54 - INFO - Android version : 4.0.4 / kernel version : 3.0.8+ / Build number : 6.1.1.B.1.54
15/034/2012 16:34:07 - INFO - Pushing C:\Flashtool\.\devices\ST25\busybox\1.20.0\busybox to /data/local/tmp/busybox
15/034/2012 16:34:08 - INFO - Pushing C:\Flashtool\custom\root\subin\Superuser\su to /data/local/tmp/su
15/034/2012 16:34:08 - INFO - Pushing C:\Flashtool\custom\root\subin\Superuser\Superuser .apk to /data/local/tmp/Superuser.apk
15/034/2012 16:34:10 - INFO - Pushing C:\Flashtool\custom\root\AdbRestore\RootMe.tar to /data/local/tmp/RootMe.tar
15/034/2012 16:34:11 - INFO - Now open your device and restore "RootMe" backup. Waiting ...
15/034/2012 16:34:11 - INFO - You have 60 seconds to follow the restore advice
15/034/2012 16:34:11 - INFO - Running adbrestoreexploit
15/034/2012 16:34:11 - INFO - Root hack did not work. Cleaning hack files
Que hago mal???