Good Day everyone! I know it may sound silly, but I found my old phone and charged it, surprisingly it works.... but ... It came from T-Mobile USA years ago and I'm trying to use a SIM Card from T-Mobile and getting: Phone Restricted Enter restriction code: So dilemma is: it's a T-Mobile phone and a T-Mobile SIM card ,, still getting this error... Just wondering if it's still possible to unlock it. Nokia Type: RM-77 Model: 6101b imei: 358823004742865 code: 0523593CN09B1 Thanks in advance!!