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Is my phone locked to another network?

If your phone isn’t working with a giffgaff SIM it may be locked to another network. It will usually say something like, “SIM card not valid”, “SIM lock”, or “Insert correct SIM card”.

  1. Check if there’s a logo from another network printed on the phone
  2. Some phones may display a message like, “SIM not accepted” when they’ve been blacklisted as lost or stolen
  3. Check out Unlockapedia for info on how to unlock your phone

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