Blacklisted IMEI
I bought a new iPhone 12 from someone on gumtree in January (was told this was an unwanted Xmas present) the phone was in all it original packaging and unopened, has only ever been registered in my name, it has been working fine until today and now doesn’t pick up a signal upon further investigation if found that it has been blacklisted, so my question is can this be removed from the list?