Locks, or security codes, help protect cell phones against unauthorized use. Locking restricts access to the phone menus, including the phone book and dialer. Manufactures initially program phones with a default lock code that's found in the user's guide. The default code remains active until you choose to create a new four- to eight-digit code. Users sometimes unintentionally lock their phones and can't remember their code, or don't know the code because another user created it.
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Enter the default lock code found in the user manual. This factory-set code is typically the last four digits of your telephone number.
Engage your imagination and try to guess the code. Think of number combinations you might use-birth dates, anniversaries, last four digits of social security-or simple, repetitive combinations such as 0000, 1234 or 9999.
Contact Metro PCS customer service, explain the situation and ask for the Master Subsidy Lock (MSL) code-which they may not provide. All service providers use discretion before releasing this code. Alternately, search online for an MSL calculator and obtain the six-digit code yourself, based on the ESN number on the back of your phone. Use the MSL code and override the user-created code.
Visit a Metro PCS authorized dealer to flash your phone with MetroFLASH. This software overwrites the firmware, restoring the original factory settings and resetting the user-created code with the original factory default.