When I'm initiating a call or receiving one, my screen goes black. I can only answer the phone by pressing the answer button, but after the call the screen doesn't go back to normal, nor does my phone respond to anything. The only solution is to remove the battery and reboot the phone.
I had this problem with different updates from the MIUI mod from langdthang and the cyanogenmod, sometimes it worked but after a while they all started having this problem.
Does anyone know what the root of this problem is?