You have obviously not seen the phone, you open up the backside to remove the battery and then you have 6 screws for the part I wanted to swap (just like you can do with back camera ram and so many things) put the new one in and screwed it back. They also offer 5 years warranty for anything you don’t want to change yourself or if there’s a bigger problem.

My USB c port stopped working, took me a few minutes and I paid 15€ for the replacement.