I have a problem since few days with my xperia s with stock rom 6.2.B.1.96. I have a french operator : b-and-you
My problem is if i deconnect from the wifi , the network is also deconnect like plane mode and i must enter my sim code. The problem appears randomly.
Is this a problem with a app , the phone or the network. I put my sim car on another phone ( lg o2x with android 2.3.4) and i didn't have this problem.
If i root the phone and put a custom rom, will i have the same problem. Or i must change my phone.