Apple is expanding access to its web-based diagnostic tool. The software (officially called “Apple Diagnostics for Self Service Repair”) is now available in 32 European countries, including the UK, Germany, France and the Netherlands. They join the US, where the tool arrived in December.

As Apple describes it, the software “gives users the same ability as Apple Authorized Service Providers and Independent Repair Providers to test products for optimal parts functionality and performance.” It currently supports iPhone, Mac and Studio Display.

The tool can scan the device for display, camera, Face ID, software integration and audio output issues and tell you which parts may need repair. This is part of Apple’s recent push to be friendlier to self-servicing, likely to try to head off regulations.

The only catch is the diagnostics require a second Apple device. Both products need to be running iOS 17 or later or macOS Sonoma 14.1 or later. Beta software is a no-go. (Sorry, iOS 18 and macOS Sequoia early adopters.)

After initiating the process at this website from the second device, the tested one will be put into Diagnostics mode, and you can follow the prompts from there.