My 650D is with a strange symptom for a couple of weeks: When I turn on the camera, sometimes the display does not turn on. Everything works (flash, autofocus, shutter, photo, etc.), but the display just does not turn on. But after about 30 seconds (this may vary), the display turns on and no longer fails.
It also happens without card in SD slot (In other words: without Magic Lantern). I've reinstalled the official firmware, I already removed the magic lantern (turned off the bootflag), and the problem continues.
That does NOT seem to be a hardware failure, it seems to be something abnormal in boot.
Is anyone else having this problem?