How do you reset nokia 2626 security code?

If you do not have the code or have forgotten it then type in *#7328748263373738# on the keypad. This resets the security code to the manufacturer default of 12345. If for some reason that does not work then use the link that is included to generate a security code based on your device's IMEI. You can get the device IMEI by pressing *#06# or it is on a label under the battery in the back of the device.