OS 10.2.1.2102 from Vodafone UK result: BLACK SCREEN

got a Z10 thru vodafone UK, did the update with Blackberry Link and guess what. it all went great till it had to restart. Nothing but a black screen. i can hear the phone getting emails, but no matter what i do, i cant bypass the black / blank screen. tried a hard reboot (taking the battery in and out, considering that i can't see anything on the screen). The phone seems to reboot itself and yet still a black screen. plugged the HDMI cable to my TV and the phone works.... just not the screen.... any ideas? has anyone encountered the same problem?
PS: tried the factory settings reset and it just doesnt work... and cant even restore a backup cause for that i need a screen and keyboard to sign in with my Blackberry ID

Hi Henry
I've just encountered this problem with one of our computers at work. Hopefully this will help.
It's a Login Window Prefs problem. It's probably corrupted so you need to remove the prefs file.
1. Startup in safe mode (hold down shift). You should get a login window for the master admin account.
2. Delete the file: userName>Library>Preferences>com.apple.loginwindow.plist
3. Restart.
Let me know how you go.
Cheers
MattD
PowerMac G5, dual 2.5   Mac OS X (10.4.5)  

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