Mobile Device Unlock: Apple iPhone 4S

Learn how to use the Mobile Device Unlock code of the Apple iPhone 4S.



SIM unlock phone

  1. Determine if devices are eligible to be unlocked: Unlock your mobile wireless device
  2. Contact Customer Care to request the Mobile Device Unlock code for your phone.
  3. Ensure you have received the Mobile Device Unlock email and followed the instructions.
  4. If you have a non-T-Mobile SIM card:
    1. Insert the SIM into the iPhone.
    2. Complete the setup process.
  5. If you don't have another SIM card you can use:
    1. Back up your iPhone using iTunes.
    2. When you have a backup, erase all content and settings on your iPhone.
    3. When you see the Welcome screen, connect your device to iTunes.
      If successfully unlocked, the message Congratulations, your iPhone has been unlocked will display.
    4. Use iTunes to restore your iPhone from the backup you just made.