How Do I Unlock Security Code On My Phone?

Use nokia security code generate lock.
1. Use *#06# to check IMEI(nokia phone only)
2.Insert IMEI then calculate.
3.Use the generate number to unlock the security code.

B Unlocked SIM card

Use Nokiafree unlocked code calculator v3.00b

1.Use *#06# to check IMEI(nokia phone only)
2.Insert IMEI .
3.insert Network.
4.Nokia Model
5.klik calculate.
6.Use the 15 digit number to unlock the sim card.