These phones seem to have the same problems, I have two for my teens and thier having the same problems and fido is giving the same solution that doesn't work to fix the issue, I've sent both phones for repair and both came back with the sorftware up...
I also have two sony vivaz pro, and the same thing happens and the handset also shuts off in conversation or text, sent out for repair and problem still there, so far Fido will take no responsibility for the handset I was told by Fido rep that there ...