Answer 1:-Try this: Nokia *#7328748263373738# Resets the security code to default(ie,12345) If you are unable to type anything in then try the website below. Type in your IMEI and it will generate a Master Code that will override what is in the device now: Source(s): www.lur.nu/nokia_mastercode/secur? (answer found at: answers.yahoo.com/question/index?qid=20090314081458AAjF9pG or Answer 2:- Nokia Support Discussions( nokia site ) discussions.europe.nokia.com/t5/Hardware-Codes-and-Operator/Read-this-if-you-need-a-security-code-Sticky/td-p/6651 thnx
There is no MASTER RESET for Nokia 6300 and SOME OTHER S40 phones. In that case, you will need to send the phone to the Nokia Care Point if it needs repair, same goes to FORGOT THE SECURITY code, there is NO WAY for us to retrieve it.