FP2: incoming calls --> 5s until screen turns-on

[jochbeck]

Maybe we face different problems, but at least they sound like the similar direction. See link for my problem description:

FP2: Incoming calls -> screen says "loading"

Hi everybody, whenever I receive a call to my FP2, the screen changes to bright grey and says “loading”. Sometimes it changes to the welcome screen (blue) as if the phone would be booting, and then changes quickly to the “loading”-screen. After the caller has hung up their call, the screen turns to standby-black, then I can use it as usual. But there is no message of a missed call (neither they appear in my phone list), and the caller doesn’t get the opportunity to leave a message on my mailbo…