ur defalt phones codes is 12345 or 00000 u can use it
Default 4 Digit user code: 1234 or 0000
Type *#06# at the mobile screen to know IMEI no of your mobile.
send the IMEI no to me and i will reply you with unlocking code.
you can find a unlock code at free of cost in this site http://www.unlock-free.com/nokia/
for your Nokia 5230
try soft format first
type *#7370# afterward input phone lock code.
all data will be reset by factory default.
get PUK code please contact your service provider through phone or go directly to their office. They will provide you the PUK code for your mobile. The PUK code for mobile phone.so that you can open your phone. When you planning to call your service provider you cannot use your mobile as it is fully locked. Please use some other mobile with same network to call your service provider.
While you get the PUK code