K3 Uninstalling JailBreak

I have jailbreak installed on 3.2.1 firmware. I am not able update to 3.3.

I try uninstall all hacks and jailbreak and run update.

Update started, message update successfull,
device is restarting,
blinking,
message update stage 1/2
and at end message update unsuccessfull.

Any idea how to solve this problem? :bulb2:

Thanks.