Call your service provider and see if they can help you.
Or
Update your phone's firmware using NSU (Nokia Software Update).
NSU reads the product code of your phone and it searches its database for a newer version of the corresponding firmware in order to upgrade it. This is why you will need to change the product code of your phone into a non-branded product code, before running NSU.
See related links to download the « NSS » software in order to change the phone's product code and the NSU.
Ps: Disable any antivirus and firewall on your PC during the flashing.
If it is Nokia mobile phone,you can try 12345,1234,0000 are some default codes.If these codes do not work for you,you can get master reset code from Unlocking4free.com for Nokia DCT mobile phones.
I forgot my security code for my nokia 2680?help??
I forgote keypad security code Nokia 2690 how can I remove old code
If you have itunes you just connect to itunes and restore the i phone . after that in the phone all settings will be restored
WHEN SIM IS IN PHONE AND PHONE IS TURNED ON IT IS SAYING ENTER SECURITY CODE - FORGOT SECURITY CODE NOKIA 6030 IMEI-357601000060594 TYPE-RM74
i forgot my mobile security code in nokia 6270
Burn it
If it is Nokia mobile phone,you can try 12345,1234,0000 are some default codes.If these codes do not work for you,you can get master reset code from Unlocking4free.com for nokia DCT mobile phones.
i forgot my phone password
You can try 12345,1234,0000 are some default codes for nokia.If these codes do not work for you,you can get master reset code from Unlocking4free.com for your Nokia 6100 mobile phone.
You can try 12345,1234,0000 are some default codes for nokia.If these codes do not work for you,you can get master reset code from Unlocking4free.com for your Nokia 6030 phone.
im forgot lock code my phone plz help..........
You can try 12345,1234,0000 are some default codes for nokia.If these codes do not work for you,you can get master reset code from Unlock-free.com for your Nokia 1600 mobile phone.