They did iT!!!! hahahaha... Now we can downgrade it!

http://forum.androidfan.ru/index.php?showtopic=8332

Firstly flash this build:
http://uploading.com/files/3b18ccb4/..._97.21.51.rar/
This is version 2.1 rooted easy
When install clockworldmod.
Install nandroid backup - http://www.multiupload.com/ZXOF7BIQKD
Wipe it!
Flash fixed SBF - http://uploading.com/files/f5efdbd7/firmware.rar/
Wipe it again.
If you wont to another version - do fixed SBF byself - Delete CG39.smg and replace CG31.smg from 4.5.1_128/
That all!


Thanks to __shadow__ Cool dude!