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Learn how to use the Mobile Device Unlock code of the Nokia Lumia 435.

 

 

SIM unlock phone

  1. Determine if devices are eligible to be unlocked.
  2. Turn on the phone with the non-T-Mobile SIM card. The device displays 'Please input unlock code.'
  3. Enter the unlock code. If successful, the device displays 'Phone is unlocked.'
  4. If you receive any error messages after attempting to permanently or temporarily unlock your device, contact customer care to inform them of the issues you are receiving.

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