General Instructions:

1. Turn off the phone
2. Insert the new GSM sim card you wish to use
3. Turn on the phone.
4. Slide to unlock and it will ask for the unlock code
5. Enter the unlock code received from UnlockPanda

Sony Ericsson models:

1. Switch ON your phone without SIM Card
2. Press the left arrow once
3. Press the button * two times
4. Press the left arrow once
5. "Personalize with MNC2" will appear
6. Enter Unlock Code

Alternate Method:

1. Insert an unauthorized Sim Card and turn ON your phone
2. Enter *#7465625*12*Unlock Code#

Other Sony Ericsson:

1. Turn ON your phone without Sim Card
2. Press left arrow ONE TIME
3. Press * button TWO TIME
4. Press left arrow ONE TIME
5. The message "Personalize with MNC2" will appear
6. Enter Unlock Code.  It may be necessary to PRESS ENTER or OK