The fact that the battery keeps draining even when the phone is off, make me arrive in the conclusion that is not a software problem. if u have any suggestion, I will be glad to hear it.well im sorry to tell u that im coming back here just to say that im going to throw away this phone. wifi keeps not working and it heats my phone, drains battery, even when the phone is off. if the phone battery is 100% before I go to sleep, when I wake up its 5%. once I turned it off cause I needed to save battery, when I turned it on, no battery again. if anyone wants to buy it for the original parts.i accept offers. lg g2. bought in may 2014, no scratches. just wifi not working. pitty. I loved this phone a lot.