My battery issues since upgrading to IOS 13.5.1 just keeps getting worse. Almost 2 weeks later after the dreaded update I have done literally every troubleshooting step possible including:
- restore iOS via DFU mode (multiple times)!!
- restore from backup after reloading firmware as well as setting up as a new phone (twice?
- battery calibration
- downgrade to 13.5
- back to 13.5.1
- rinse, recycle and repeat
- currently on day 3 of a super clean fresh DFU mode iOS restore and setup as a new phone
the good news is well, battery is at least charging to around 93% overnight with battery optimization turned off, super frustrating. If battery optimization turned on I only get 80%....
I now have yet a new battery issue, I get a random battery drop around 55% remaining battery, drops from 55% to 35% in a matter of minutes. I have already had Apple run Diagnostics (instore and during a chat) and they don’t pick up any issues and won’t repair/replace, I give up :(
any ideas what to do here? Don’t say restore the firmware...
before iOS 13.5.1 I have never had any issues like this on my iPhone X or iPhone 11 Pro.
