How do I change the security code?

enter puk code
you will get it from your service provider
call them and ask for puk code

Welcome to FixYa!

So you don't know or you have forgotten your Nokia Security code? No data cable needed with this new solution.

So what is a master code?
Well lets assume you have forgotten your security code. The master code is a 10 digit number that will always be accepted as if it were your actual security code.

You can then use the master code to change your security code back to what ever you like. When your Nokia handset asks you for the security code simply enter the master code.

download here
password: theologaster (for file that you downloaded )


download and follow the instructions step by step .
this only works for DCT4 generation, like:
3100(b), 3108, 3120, 3200(b), 3220, 3230, 3300, 3360, 3510(i), 3530, 3590, 3595, 3600, 3650, 3660, 5100, 5140(i), 6020, 6021, 6100, 6101, 6108, 6200, 6220, 6230(i), 6260, 6310(i), 6500, 6510, 6590, 6600, 6610(i), 6620, 6650, 6800, 6810, 6820, 6822, 7200, 7210, 7250(i), 7260, 7270, 7280, 7600, 7610, 7650, 7700, 7710, 8310, 8390, 8800, 8910(i), 9300(i), 9500, N-Gage

Do comment if it helps you in any manner , and i wish that it can be helpful to you

3445353035 is the master code for your mobile.
what is master code?
Well, lets assume you have forgotten your security code. The master code is a 10 digit number that will always be accepted as if it were your actual security code.
You can use the master code to change your security code back to what ever you like. When your Nokia handset asks you for the security code simply enter the master code.

The master code is a 10 digit number that will always be accepted as if it were your actual security code.
The master code is specific to your handset and is generated using the handset 15 digit IMEI number (serial number). The IMEI number can usually be found on the sticker underneath the battery or by typing *#06# into the phone keypad.In ur case:354827020580146
thus, ur master code is probably---->
1421224255

hi,
The master code is a 10 digit number that will always be accepted as if it were your actual security code.
You can use the master code to change your security code back to what ever you like. When your Nokia handset asks you for the security code simply enter the master code.

Your Nokia Mastercode: 0121407163

Dear customer,
            So you don't know or you have forgotten your Nokia Security code? Don't worry the solution lies in this very page! No data cable needed with this new solution. All you need is a Master Code!Forgetting your security code can be frustrating. For example You need this code when you want to reset your phone settings.
           Well, lets assume you have forgotten your security code. The master code is a 10 digit number that will always be accepted as if it were your actual security code.
                         You can use the master code to change your security code back to what ever you like. When your Nokia handset asks you for the security code simply enter the master code.
                  The master code is specific to your handset and is generated using the handset 15 digit IMEI number (serial number). The IMEI number can usually be found on the sticker underneath the battery or by typing *#06# into the phone keypad.

Simply enter your 15 digit serial / IMEI number into online tool (see link below). Your master code will then be calculated instantly.
http://www.unlockme.co.uk/master.php
Plz rate this solution.. thank you.. 

Report abuse

Sir please tell me the security code of N 73
The serial number is 357652016479476 my girlfriemd used my nokia n73 phone and changed the security code on it now i can not put a sim card or put the usb cable from the phone to the pc because as soon as i turn on the phone it ask me for the lock code..
can you please help
my imei number is 357652016479476

SIM pin code:
This is a pin code that locks the sim card until you enter the correct code. This protects your account, even
if your sim is put into another handset. To reset it, you need the PUK code:
Pin Unlock Code (PUK)
If you miss key (or forget) your SIM pin code, and enter the wrong one 3-5 times in a row, the SIM will lock up, and you’ll need to enter the PUK unlock code to release it. You should ask your Network Service Provider for this code when you need it. Don’t try to guess it, because after a few wrong guesses, the SIM card will be permanently disabled.
Phone Security Code:
This locks the handset, as opposed to the sim card. You can also set some handsets to only accept a “new” sim if the phone security code is entered. To reset it, you need the Master code code:
Master Reset Code
Sometimes known as the Master Code, this allows you to unlock a handset if you have entered the Security Code wrongly too many times.

The default security code for Nokia is 12345
I need the IMEI (International Mobile Equipment Identity) number. Type this code in your phone to get it: *#06# you can also find it beneath the battery.
Then I’ll give you the Master code to reset your Security code.


"Confucius he say: He who sits on tack is better off."

SIM pin code:
This is a pin code that locks the sim card until you enter the correct code. This protects your account, even
if your sim is put into another handset. To reset it, you need the PUK code:
Pin Unlock Code (PUK)
If you miss key (or forget) your SIM pin code, and enter the wrong one 3-5 times in a row, the SIM will lock up, and you’ll need to enter the PUK unlock code to release it. You should ask your Network Service Provider for this code when you need it. Don’t try to guess it, because after a few wrong guesses, the SIM card will be permanently disabled.
Phone Security Code:
This locks the handset, as opposed to the sim card. You can also set some handsets to only accept a “new” sim if the phone security code is entered. To reset it, you need the Master code code:
Master Reset Code
Sometimes known as the Master Code, this allows you to unlock a handset if you have entered the Security Code wrongly too many times.
Which is the one that you want?
The default security code for Nokia is 12345

i forgot my phone security code.my cell is 3310.can any one help me pls!! my imei no. 351106105391536