ATV2 stuck in boot loop and general memory problems!

Hi guys!

I have a jailbraked ATV2 (iOS 5.01) running with Firecore (2.1). In the past few days I’ve encountered several annoying issues during the booting process. It keeps stuck in a boot loop for 5-6 minutes until it “calms down” and it starts running normaly. Unfortunately I can’t run any kind of update whatsoever. I always get a failure message. Apparantely there is some kind of (full??) memory problem, since I can’t even mark the played movies as “seen” anymore.

Does one of you guys have an idea what could be wrong ?

Any kind of feedback is appreciated!