1. AC Question's Avatar
    My Samasung Galaxy S3 was unlocked from O2 in UK in April 2015 and has become locked again.
    How do I unlock a Sim Free Samsung Galaxy S3 which has become locked after 8 month being Sim free?
    01-27-2016 07:18 AM
  2. belodion's Avatar
    Who did the unlocking? Some unlockers don't do it properly.
    Or did you get the code from O2?

    Posted via the Android Central App
    01-27-2016 11:18 AM
  3. Kambiz Daneshyar's Avatar
    The unlocking was done by code given by O2
    01-27-2016 04:43 PM
  4. belodion's Avatar
    Welcome as a new member.

    Have you spoken to O2 about it?
    01-27-2016 11:30 PM
  5. Rukbat's Avatar
    An O2 phone would be GSM. Once it's carrier-unlocked, it can't be locked again. If it's rejecting another carrier's SIM card, something's wring with the phone.
    01-28-2016 12:19 AM
  6. Kambiz Daneshyar's Avatar
    The phone works with WiFi but not with a Sim card. Strange !!!!
    01-28-2016 05:07 AM
  7. belodion's Avatar
    The phone works with WiFi but not with a Sim card. Strange !!!!
    No, that does make sense. You can use wifi whether or not the phone has a SIM in it.
    01-28-2016 02:19 PM

Similar Threads

  1. [FREE][GAME][KIDS] Flying Pig Kids
    By Femapps Studio in forum Android Games
    Replies: 4
    Last Post: 02-22-2016, 02:19 AM
  2. How to unroot Samsung Galaxy S II GT-I9100P?
    By AC Question in forum Samsung Galaxy S2
    Replies: 2
    Last Post: 01-27-2016, 11:54 AM
  3. Why is my Samsung Galaxy S6 micro card not displaying anything?
    By AC Question in forum Samsung Galaxy S6
    Replies: 1
    Last Post: 01-27-2016, 07:10 AM
  4. Why is my SIM card not recognised?
    By moreh1 in forum General Help and How To
    Replies: 0
    Last Post: 01-27-2016, 06:58 AM