I got this randomly this morning when I noticed my iPhone mini 13 said 2% on the charger… then I did a hard reset and it said it was full charge then it said 38% and I did a reset and it came back and said unknown part.
iPhone 13 mini, iOS 17
The "Unknown Part" message can appear if phone detects a problem with the battery.
Make an appointment at the Apple Store or take the phone to an authorized Apple Service shop to have the battery checked and tested.
You can find a list of authorized service shops in your area using this link: Find Locations
It is likely that the battery will need to be replaced. $89 (U.S.) or $0 if you have AppleCare+
The "Unknown Part" message can appear if phone detects a problem with the battery.
Make an appointment at the Apple Store or take the phone to an authorized Apple Service shop to have the battery checked and tested.
You can find a list of authorized service shops in your area using this link: Find Locations
It is likely that the battery will need to be replaced. $89 (U.S.) or $0 if you have AppleCare+
Sounds like your battery is failing. What is the Battery Health at Settings > Battery > Battery Health & Charging > Maximum Capacity?
I assume the battery has not been replaced.
What is the battery health level? If 80% or less, get a new battery.
Unknown Part: notification happened saying my battery is not a genuine Apple part
