i had a serious problem in my device galaxy mega 6.3 I9205
after i flashed the CM11 custom rom of android kit kat 4.4.2 on my device
i faced a serious problem, that the screen go black while a phone call is in progress,
and there is no way to light up the screen except after ending the call,
it seems that there is a problem regarding the sensors of the phone,
especially the problem is extended to the flip cover , the screen should react according to the cover is put on it or not,
so please help me, because i couldn't use my phone while a phone call is in progress...
Thank You ..