Sanyo phones purchased from wireless carriers are usually "locked" to that particular network. This makes it impossible to use SIM cards from other networks with the phone. However, the phone is "locked" at the software level and simply requires the user to enter the proper unlock code to return it to its original factory setting of accepting any valid SIM card. Many wireless carriers will provide the unlock code free of charge if the customer calls to request it.
Instructions
1. Obtain the IMEI number of your phone. The customer service rep uses this to verify that the handset is yours and it is also required to generate the unlock code. Type *#06# to display the code on the phone.
2. Call the customer service department of your wireless service provider to request the "subsidy unlock code" of your Sanyo phone. One reason the company may provide the unlock code is if you plan to use the phone in another country and you need it unlocked to take advantage of their prepaid services.
3. Remove the battery and original SIM card from the Sanyo and insert a SIM card from a different network. Insert the battery and turn on the phone.
4. Enter the unlock code provided by the customer support to unlock the Sanyo for use on other networks.
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