If after SW update you can't get into the "main menu" but only get grey-kinda colours and if you wanna press anything to go into you get a BSOD...
Thanx to Franc!
Download the attached file...
FTP to your STB (use FileZilla Client) and go to:
/usr/lib/enigma2/python/Screens/
Delete old Menu.py/pyo if they exists.
Restart. You can use the (in Zgemma it's white) button at the back...
Now, decompress and put the attached file into the same spot.
CHMOD/Change attributes of the file to 644.
Restart STB.
This will happen if you go blindly: MENU > left button > OK button > 2 x left > OK... Before you manage all this the STB will have gone into restart.... If it doesn't happen the first time, the second time (after 3 automatic non restarting restarts) it will...
All should be OK now... ;)