Hi all, I haven't tried anything to unlock this phone but I saw a thread on here explaining in one post a code to unlock a Nokia 1600 in the Phillipines and it worked, problem solved in 2 posts so I thought I'd give you guys a try. Any help would be much appriciated.
“Cannot undo restriction” or “Not allowed” means. After you have made 5 attempts or even 3 attempts on newer phones and failed, the phone displays that message, meaning that the phone is "hard locked." At this point, you will still be able to use the phone with the original provider, but you will not be able to unlock it by codes. You will need to take or send it to a professional for direct unlocking service.
