Since iFixit they have got to work and have wanted to share some very interesting details about What components (and what not) can be repaired on the iPhone 11 and iPhone 11 Pro without the need to turn to Apple.
Some time ago, after replacing a battery, they received a service warning in the terminal settings (in the iOS 13 beta). Apple blocks its batteries so you have to go to them in case of damage.
So now they have decided to reload with the iPhone 11 and iPhone 11 Pro. These are the components that you can repair, and those that you can't.
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In their test with an iPhone XS, they were unable to repair the battery without receiving a service warning. And with the new iPhone 11 too. So this component is not recommended to replace it on your own or with third-party services.
Screens, front cameras and Face ID
When replacing the screens between two iPhone 11 units (Pro and Pro Max) True Tone and Face ID recognition disabled. When moving the components of the front camera and Face ID sensors to another phone, the front camera works, but Face ID does not. So if your front camera breaks down, you will have to go to Apple if you don't want to lose Face ID.
This time the guys from iFixit s could replace the rear cameras without suffering any type of blockage since they are not paired with the logic board. So this s is a component that you can repair on your own.
As for the logic board, finally, despite having the same size on iPhone 11 Pro and iPhone 11 Pro Max, when exchanged between the two phones, they stop working.