Right now we do not even want to think about this happening, but in the case that unfortunately our beloved and brand new iPhone 12 falls to the ground and the rear glass breaks Apple can only give us the option to replace the entire device.
This means that today unfortunately users who break this rear part they are only eligible to replace the equipment whole. A note sent by Apple and discovered by the well-known web MacRumors, says Apple will soon be able to repair the back of the iPhone 12 to the customer, in addition to troubleshooting Face ID, change the motherboard and other internal components without having to directly change the iPhone to the customer.
Logically If the iPhone 12 has a problem beyond the breakage of the rear glass, the Genius will warn us about it and it will be time to change the iPhone almost safely. Many times Apple does not complicate in repairing internal parts of hardware of the equipment and they make the change of terminal to send ours to disassemble to the factory, repair or change the parts and then put it back on the market as a reconditioned product.
This will change with the new mode "iPhone Rear System"
The leaked document was sent to Genius Bars and Apple Authorized Service Providers (AASP) so this "iPhone Rear System" is supposed to mean that iPhone 12 mini and iPhone 12 users could get a repair without sending or change the entire terminal. It is important to explain that Apple says that the new repair method will be Available for all countries where the iPhone 12 mini and iPhone 12 are sold, although they do not say anything about the iPhone 12 Pro and the iPhone 12 Pro Max, which seems to be they would not be included in this new repair program.