Do I have problem with my battery?
Hey,
I bought a used iPhone 13 from a trusted source.
The problem is that sometimes my phone reboots out of nowhere. So I use it and piff, it restarts. Strange thing is that then it doesn't ask for the PIN code, ONLY my passcode (so I suspect it's a crash). Once it also happened that my phone could only charge up to a certain percent. Then I manually restarted it and the battery was at 0 percent. Then my phone said that the battery is an unknown component. But only at that time. Since then you can still see the battery status and that the battery is unknown is also not displayed. But the battery status is only 99% and the battery discharges a bit faster. What can be the problem? I suspect it's the battery, but then why is it no longer displayed that it's an unknown component?
I have a warranty of course. So if no amount of trying will help I will send it back of course.
Maybe someone can help me solve the problem at home.
Thanks in advance!
iPhone 13, iOS 17