I flashed G930FXXU2ERG2 yesterday and have been using it since yesterday 22:00h. There is no cell drain I would say. Battery improved itself over night for approx. 25 %.   Screen time before this upgrade was 2,5h (I was using EREO modem), now I have 3h and 17% more.   It is S7 flat.       ... View more

What also helps is turning off phone completely... ... View more

Hi,   I have S7 flat and also stadby cell drain. This is the answer that I got from the Samsung members app: ... View more