For those who want to repair their phones on their own without having to go to an Apple store or service provider, Apple now has a dedicated Self Service Repair program that provides the repair manual, parts, and tools necessary.
Only the above listed components are available for repairs for the 2022 iPhone SE, the iPhone 12 models, and the iPhone 13 models. You can only do a limited number of fixes on the latest iPhones, because Apple has plans to expand to additional repairs and additional devices in the future.
If you want to attempt a repair on your own without Apple's components, the manual can be found if you want to read it.
You can get a repair manual by visiting Apple's Self Service Repair website. Clicking on the Apple repair manual link will take you to the manual that you're looking for. All of the links are in PDF on the Apple website.
The repair manual walks through the parts that are available for purchase and explains how the repair process works. How to set up for a repair, the steps required, and what to do if something goes wrong are included in the repair manual.
Major repairs like swapping out a battery or replacing a display can be done at an Apple retail store, but they take more time and cost more.
Those who have downloaded and reviewed a repair manual can place an order on Apple's Self Service Repair website.