After the latest update to Android 8.1.0 v2.2 with May security patch, phone battery seems to be draining faster. Before that I used to get nearly 1.2 - 1.5 days with full time 4G Data usage (video streaming, browsing, gaming, etc.). But after the update, it's not even lasting a day. It lasts for an avg of 15-16hrs. Can the nokia technical division please look into this issue? Meanwhile, the heating issue seems to be lowered after the update. Kudos to that. Thanks.