The Diagnostics test on your iPhone lets you identify the potential software and hardware issues.
Why do we need diagnostics?
The diagnostic tests help you in knowing the working conditions of the mobile phone and any threats from the external software.
Inbuilt Diagnostic feature
There is an inbuilt diagnostic check in Apple itself. All you have to do is long-press the side and volume buttons while the phone is being charged after switching it off.
Apple customer support
Click on start diagnostics and choose a Wi-Fi network to get started with the process, if you are connected to the official Apple network the tests run, or else you will have to go to an Apple store.
The third-party applications available on App Store help in conducting the Diagnostics tests. Make sure you are downloading these apps from the Apple store, or else you are vulnerable to viruses.
Examples of third-party applications
Phone doctor plus, TestM, Phone Diagnostics, etc are some of the applications we can use to run the tests. Allow the requirements and you can either run a full test or a quick test.
Types of tests conducted
The tests include a Touch screen, headphones, Microphone, Accelerometer, Bluetooth, Wi-Fi, GPS, Cellular, Proximity, Face ID, and many more. All you need to do is follow the instructions given in the app.
Avoiding the external viruses
To avoid Viruses and any external sources from affecting your phone, make sure you are not clicking any unwanted pop-ups while browsing the internet.