1. The battery health function was not found in the system settings, so you need to upgrade your mobile phone system to view it. You can download the latest version of the system after entering the mobile phone password in the settings, general and software update of the mobile phone, and the mobile phone will be updated automatically.
2.iPhone is a series of mobile phone products with iOS operating system launched by Apple on June 5438+1October 9, 2007. By September 2022, Apple has released 37 mobile phone products. The mute button of iPhone series products is on the left side of the front of the device. Before iPhone5, models use 30Pin interface, and after iPhone5, products use Lightning interface. The Home button was configured on the previous model of iPhoneX.