@James0071 wrote: Hi, I really like my S7 Edge. However as a direct result of installing the Oreo update I have significant battery drain. The drain is attributable to cell standby which sometimes reaches over 50% of battery use. It definitely did not do this on Nougat, ever. I have not added any apps to cause this problem and would really like a suggestion about what to do. I can't believe Safe Mode will have any effect as this has happened as a result of the upgrade, not rogue apps. I am not keen to do a factory reset either as I can't see the benefit. I have cleared the cache, removed some apps, restarted etc, turned off any battery hungry options in settings but to no avail. If anybody could help me I would be very grateful. I believe it is a bug in Oreo or Samsung's altered version of Oreo but cannot prove either. I can't think what to do apart from find out how to downgrade back to Nougat, which I don't want to do. Many thanks. I have had the same probkem with my S7. Battery drain during idle was really bad etc. Yesterday, I came across "VoLTE" option under Settings -- Connections -- Mobile Networks. I didn't remember having it before hence I disabled it. My idle battery drain is back to normal. However, the phone still consumes much more energy during use. For example, 40 min of web browsing and few minutes of YouTube on WiFi drained 10%. This was not the case before recent updates. It seems they messed something up with radios. I submitted logs via Samsung Members. Let's see what happens.
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