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xKaizoku Author

Level 2

299 points

iPhone 5S draining overnight

I think this problem started after I updated to iOS12.4.9.

When I checked the settings for battery usage, it shows a steadily declining graph from 100 to 0%. The thing is nobody used the phone and the screen on time is only 3m with 0m screen off.

Messages app showed 3m usage with 87%.

The phone also gets warm during charging recently even when it reaches 100%.

This never happens and the iPhone usually lasts a few days without usage. Battery has been replaced before so it’s not the battery.

iPhone 5s, iOS 12

Posted on Nov 13, 2020 4:59 PM

Best reply

xKaizoku Author

Level 2

299 points

Posted on Nov 14, 2020 6:09 PM

ok nevermind.

I discovered the sudden Touch ID failure was the culprit of the battery drain. This seemed like a common problem among users as the system keeps trying to resolve the error thus draining the battery.

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iPhone 5S draining overnight

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