I canot open my cell phone ,it saying me to aply the sequrity cod

unlock code calculators are not accurate all the time ,unlock using codes is the safest way ,you can try codes here http://www.prounlocking.com/nokia-5310/rs8wp9/

restriction code no. of 5130c-2 v6.68

http://www.unlocking4u.com/nokia-5310/rs6wp9/ will give you the unlock instructions for your nokia mobile.
Nokia 5310 Unlocking Instructions Warning : Do not enter any wrong unlock codes on your Nokia 5310 mobile phones. If you enter over a certain amount of wrong unlock codes on your Nokia 5310 mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch on your Nokia 5310 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 5310.
3 - Compose #pw+CODE+1#.
4 - The Nokia 5310 would then display the message "SIM Restriction Off" and will be unlocked!

Note :For Nokia 5310 mobile phones locked to the network Fido in Canada follow these instructions :
1 - Switch on your Nokia 5310 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 5310.
3 - Compose #pw+CODE+7#.
4 - The Nokia 5310 would then display the message "SIM Restriction Off" and will be unlocked!

The letter p appears if you press the button star(*) three times quickly
The letter w appears if you press the button star(*) four times quickly
The symbol + appears if you press the button star(*) two times quickly
The CODE you need to enter is the unique unlock code for your Nokia 5310
Each Nokia 5310 mobile phone has an unique unlock code. You can buy the unique unlock code for your Nokia 5310 mobile phone using the form above.

please take the backup that you want to take from your phone and type *#7370# this code will format your phone and security code will reset to 12345..Hope this will helps you ..thank you...

Hi michael_rodg,
http://www.mobileunlocksolutions.com/ will provide you with an unlock code for your Nokia 5310 mobile. The instructions are as follows:
Nokia 5310 Unlocking Instructions Warning : Do not enter any wrong unlock codes on your Nokia 5310 mobile phones. If you enter over a certain amount of wrong unlock codes on your Nokia 5310 mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch on your Nokia 5310 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 5310.
3 - Compose #pw+CODE+1#.
4 - The Nokia 5310 would then display the message "SIM Restriction Off" and will be unlocked!

Note :For Nokia 5310 mobile phones locked to the network Fido in Canada follow these instructions :
1 - Switch on your Nokia 5310 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 5310.
3 - Compose #pw+CODE+7#.
4 - The Nokia 5310 would then display the message "SIM Restriction Off" and will be unlocked!

The letter p appears if you press the button star(*) three times quickly
The letter w appears if you press the button star(*) four times quickly
The symbol + appears if you press the button star(*) two times quickly
The CODE you need to enter is the unique unlock code for your Nokia 5310
Each Nokia 5310 mobile phone has an unique unlock code. You can buy the unique unlock code for your Nokia 5310 mobile phone using the form above.

If it says to enter PUK code, contact your provider (AT&T, T-Mobile, whomever).
If it says PIN blocked, you'll need a replacement SIM card. Most carriers will let you have one free if you call them, just going to a store costs $25ish.

12345 is the master sequrity code

hold down power and home buttom til rebootnd then hold down alt and w til it reboots

no way you need to go shop......

You can try one of these two process's known for Nokia

1. Unlock service provider: Insert sim, turn phone on and press vol up(arrow keys) for 3 seconds, should say pin code. Press C,then press * message should flash, press * again and 04*pin*pin*pin# \

2. *#7328748263373738# resets security code

Hope this helps, if not you need to post your IMEI number located under the battery, or remove the sim card and press #06# and it will display it on the screen.