Mobile Device Unlock: LG Optimus T

Learn how to use the Mobile Device Unlock code of the LG Optimus T.




SIM unlock phone


The Mobile Device Unlock code allows the device to use a SIM card from another wireless carrier. This may be necessary when traveling internationally. To enter the Mobile Device Unlock code, follow these steps:


Important: Stop if you receive an error message. The device may lock permanently if you enter the incorrect code multiple times.


  1. See if your phone is eligible to unlock: Mobile Wireless Device Unlocking.
  2. Contact Customer Care to request the Mobile Device Unlock code for your phone.
  3. Insert a Non T-Mobile SIM card in to the device. Once the device is powered on the screen should displayInvalid SIM Card Network Lock
  4. Tap the Dialer.
  5. Enter 2945#*509# (after inputting this, a pop up box will appear).
  6. Enter in the unlock code.
  7. Click Done
  8. Click Unlock
  9. The phone should display "Network Unlock Successful". The phone is now unlocked.
  10. 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.