I updated my DELL venue pro to 7.8 but now i cannot access to 'settings' or 'messages' and when I press one of these options the phone kick me back to the home screen.
I tried to hard-reset using the keys and zune but the error is still happening.
Also Zune finds an update and it try to install it but at the end it shows an error.
Is there any way to fix the error or rollback the update?
The kick back error may caused by the incomplete update. In order for Zune to update the phone probably, you need to connect your phone directly on the USB behind your computer. The phone will NOT update properly behind a USB hub. Fully update your phone, see the throw back problem resolve or not. Good Luck.