Upgraded phone activated new sim but in new phone it says “phone not allowed” in network section. If I use new sim in old phone sim works any idea of why phone isn’t allowed ( it’s a iPhone 11 Pro Max ) ? Or any idea how to fix this problem?
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues. Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
