I need free sim network unlock pin

MEID A0000042E53F2D for y300c sim unlock code

You need network Unlock PIN for Your Sony Ericsson Xperia Phone?
Get the Network Unlock PIN at
Onlinegsmunlock.com
and Unlock it easily then use with any other GSM network sim card.
If you need to use other O2 sim card in same country you no need to Unlock it..If it's different country you need to Unlock it.If you need security pin get from service provider.

you can Unlock your HTC Desire S with imei unlock code. it is very simple and eaisiat way to unlock your HTC Desire S. get your HTC Desire S Imei Unlock Code . and use any gsm sim card.
i hope this will help you .

you can get the unlock code from your service provider itself for free of cost if your phone is within 6 months else you should buy codes from the third party provider. i got my codes from here. you can try one from here. SuperUnlockCodes

Before you can use a branded mobile phone with another network, you have to unlock the phone from the network to which it is currently locked. Also, unlocking the phone in most cases does not guarantee a 100% performance. You might still experience little problems ranging from poor network reception to failure in SIM detection.
If you want to go ahead with the unlocking, you have to send it to a local repair store that would help you unlock it. Also, there are some other websites that provide the unlock code of your phone in exchange for little charges. you can only obtain these codes by sending the phone to a repairer. There is a possibility your phone is still partially locked to the former network.

To get the security code/restriction code to unlock thecell phone from the current cell phone provider so you can use the SIM cardwith a different phone provider, Please click on this link and follow myinstructions :- http://www.fixya.com/support/r4049238-unlock_cell_phone If your phone provider does not help you then this WEB siteit provides security codes for a small price. http://www.mobileunlockstore.com/?gclid=CKDb2_y2558CFSlJagodxBkDHw Try this WEB sites - http://www.unlock-free.com http://www.unlock-zone.com/

You will not find a free unlock code for the Nokia 6300. Your first port of call would be your network service provider. They may charge you for the unlock code and the waiting times for delivery can vary. Alternatively you could use a third party unlock code supplier (link below), however only certain networks are supported.

Nokia Unlock Codes

perhaps the phone was reported lost/ stolen by the previous owner... if that is the case, the phone would lock, and not be able to work