How To Unlock AT&T Cingular Flip M3620 by Unlock Code.

Why unlock my AT&T Cingular Flip?

The unlocking service we offer allows you to use any network provider SIM card in your AT&T Cingular Flip. this involves unlock code which are a series of numbers which can be entered into your phone via the phone keypad to remove the network restriction and allow the use of other domestic and foreign networks.

AT&T Cingular Flip
AT&T Cingular Flip

How Do I unlock my AT&T Cingular Flip?

Unlocking an AT&T Cingular Flip phone is easy as making a call. Please follow these steps :

  1. Get the unique unlock code of your phone from here.
  2. Swith phone off.
  3. Remove AT&T SIM Card.
  4. Insert a different SIM Card (Cricket, T-Mobile, MetroPCS etc…)
  5. Enter the unlock code.

That’s all. Congratulations, enjoy your unlocked AT&T Cingular Flip phone on all networks, worldwide.


  • All carriers are supported for unlocking (AT&T, Cricket Wireless, T-Mobile, MetroPCS, Vodafone, Orange, O2, 3 UK, Virgin mobile, Rogers, Fido, Bell, Telus, SFR, Bouygues, Movistar, TIM, TMN, A1, Telekom, etc…)
  • Unlocking is permanent, your phone won’t re-lock if you reset, flashed or restarted your device.
  • All AT&T Cingular Flip M3620 variants are supported for unlocking.