i've also had that issue the second day after receiving the phone. I removed the sim, put it back in but that didn't help - i looked at my sim card tray and i realized that a one side of the sim card chip was close to one metal side of the tray an...
What gapps did you use?
I use PA Gapps but dunno what version. Not the newest.
I will try a third flash today using the newest PA Gapps from 07.03.15.
I really like this ROM but i don´t want to use it before my deepsleep problem ist sol...