I am using an iPhone 7 plus it has original battery it was 91 when I BOUGHT it because it was never opened so please help me to fix this issue.
iPhone 7 Plus, iOS 15
With iOS 15.2 and later and iPhone XR, iPhone XS models, and later—including iPhone SE (2nd and 3rd generation)—you can go to Settings > General > About for the parts and service history of your iPhone. You can also find out if the battery has been replaced. If the replacement was done using genuine Apple parts and processes, "Genuine Apple Part" will appear next to Battery.
Please just tell me man that why my battery usage by each app is not showing as shown in above pic kindly help me with that.
Can anyone tell me why my battery usage by each app is not showing plus my battery health has also decreased 3 percent in one day from 90 to 87?
