tomasm2002
Lurker
Normally, when I go to sleep, I put the phone on Airplane mode, when I wake up, like 1-2% of battery has drained. But now it just goes from 75 to 35%! And, the most battery drain is caused by GSM beiing active - or it looks like if it was just checking if its still in range or something (judging by the image below) RED is active GSM use and GREEN is screen on
-dual sim
-I have also disabled calling over WiFi
-dual sim
-I have also disabled calling over WiFi