Activation lock
what is the activation lock & how i can remove it from my iPhone X?
my iPhone is unlocked and working with all the carriers.
Activation lock is an anti-theft feature intended to make a lost or stolen device unusable to anyone other than the rightful owner.
Only the owner of the account used to lock it can remove the activation lock.
if you purchased a used phone that is activation locked, talk to whoever you bought it from. If they can not or will not remove the activation lock, return it for a refund. If they refuse or you have no way to contact the previous owner, recycle it or turn it over to the police. It's useless.