FP@ freezing and rebooting

Hi, I have a FP2.
It frequently freeze and then reboot.
Everytime it reboots, it take some time trying to boot: it stops in the black screen with the FairPhone tag, or stops with the screen half black and half blue, reboots again, then optimizes the application (several times) and then (after at least 15 minutes) boots.
The first this happen was 4 days ago. The freeze and reboot is always more frequent.
I tried to clean contact to the screen and to clean cache.

A post was merged into an existing topic: FP2 random reboots - see first post for workarounds