What I Found
Here is how to open the hidden iPhone Diagnostics and Repair menu, what tests are available, and when it may help.
If your iPhone screen looks off, Face ID is acting strange, the speakers sound distorted, or touch input feels unreliable, there is a built-in diagnostics area that can help you check a few things before you head straight to Apple Support.
To access iPhone Diagnostics mode, power the iPhone all the way off, wait a few seconds, then hold both volume buttons while plugging the phone into power. Keep holding the volume buttons through the Apple logo until the Diagnostics and Repair screen appears.
What this video covers
- How To Open iPhone Diagnostics
- What Happens Next
- Available Tests
- Pixel Test Notes
- When This Is Useful
The short version
To access iPhone Diagnostics mode, power the iPhone all the way off, wait a few seconds, then hold both volume buttons while plugging the phone into power. Keep holding the volume buttons through the Apple logo until the Diagnostics and Repair screen appears.
