Unlock code for nokia 6131 imei # 359390/00/057661/3

You can get the unlock code through online..........give your IMEI number and get the unlock code for ur mobile.... i will suggest the website Unlock-Zone.com which is doing good service .....you can approach this website.
This site is nearly perfect and they were recommended highly in the cell phone forums. I used them to unlock my cell phone. contacted them and within 30 mins i had my unlock code and my phone was unlocked.
Hope this helps.

As you have not specified in particular what is the unlock code required for you, i am giving the ways to unlock all the codes

NETWORK UNLOCK CODE:

You can unlock it by flashing your mobile if your mobile is a CDMA mobile...
The procedure for flashing your mobile is in the link below
http://hubpages.com/hub/How-to-Flash-your-cell-phone
It has an video explanation.

If your mobile is not an CDMA mobile , you can get the network unlock code(NUC) by just contacting the current network provider customer care department.It is free of cost.

The restriction code can be got from your old service provider..This restriction code is kept to prevent someone who stole the mobile from using it with another provider...

They will have a security check done with your date of birth etc..to verify whether you are the exact owner of the phone..

After that they will provide you the restriction code to unlock it and use it with another service provider..

It is all free of cost do not pay anyone for this seeing some advertisement over internet . That is all fake ads.

The above procedure works and you can verify that by seeing the rating of an happy customer here..
http://www.fixya.com/support/t4035818-need_unlock_nokia5130c_2_use

PUK CODE:

PUK code can be given only by your service provider which is specific for each and every mobile number.
Contact your sim customer care department over phone. Its free of cost to get the pin or puk no. If you cant contact through your phone get some other phone and contact them.
Go to the nearest service outlet of your service provider they can also help you.
There is no other go than the above procedure only your service provider can give it nobody else in this world nor any software.
Go to the below link and you can confirm that the above procedure works and there is a testimonial given by the customer too. http://www.fixya.com/support/t3582685-phome_lg_ke670_put_security_code_phone

PIN CODE:

HI If you are asking for pin contact your service provider , he will give you a default pin .

If you try pin more than few predefined no of times your phone will ask PUK code which can also be given only by your service provider which is specific for each and every mobile number . Do not try PUK(new pin code) code many times or else your sim will be blocked and you will need a new sim.

Contact your sim customer care department over phone. Its free of cost to get the pin or puk no.
Go to the nearest service outlet of your service provider they can also help you.
There is no other go than the above procedure only your service provider can give it nobody else in this world nor any software.

SECURITY CODE:

If it is lost nothing can be done. You need to flash your mobile at an authorized service center which will reset the mobile memory and also all the data inside the mobile will be lost.

Hello friends, In these days many people have faced this problem during changing the network carrier of the SIM. They didn't know how to unlock the phone instantly. If your phone is also got locked while changing the network carrier of the SIM then unlock codes is the best method for SIM unlocking within a few seconds. Firstly you need to opt a mobile unlocking company who provide 100% safe and fast method. Then share your handset details such as 15 digits IMEI number of the phone with country and operator. If you don't know how to find the IMEI number of the phone then dial *#06# into the phone. After sharing this information you will receive a code through email with instructions. Follow these instructions, you can easily unlock your phone within a short period of the time.