fine, pair the parts, but also: let the owners unpair them, same as you can lock/unlock your phone. Voila! both repairability and anti-theft gained! Pairing is

fine, pair the parts, but also: let the owners unpair them, same as you can lock/unlock your phone. Voila! both repairability and anti-theft gained! Pairing is just anti-repair atm. if you want to know how: put the part ids (which are used for pairing) into the apple id account and verify them when switching on the phone.