How To Use Secret Codes On Nokia 3410 ((install)) • High Speed

To exit this specific menu, you usually have to restart the phone by turning it off and back on. Network and SIM Security Codes

: This is the default security code for most Nokia devices. If a code asks for a lock or security code, this is the standard factory-set value. Advanced "Special" Symbols How to Use Secret Codes on NOKIA 3410

to restore the phone to its original brand-new state. This will erase all user data. Security Reset: To exit this specific menu, you usually have