I need to unlock my cell to use any sim - LG Cell Phones

Zte cell phone unlocking instructions How to Unlock a ZTE Phone 1.Insert SIM card from a source different than your original Service Provider
(i.e. if you have a Rogers phone, use a non-Rogers SIM card),
2.Phone will ask you to enter Sim unlock pin (NCK code or PUK Code )
3.Enter unlock code
4.Phone will be unlocked

a sim card or phone needs a puk code or is locked BECAUSE it is not active,in order to unlock a sim card,or receive a puck code,you need to either,pay the balance owed,buy a new monthly service,open a new contract with a cell service or return the sim card or cell phone to whom it belongs to,we at fixya CANNOT GIVE YOU A NUMBER TO UNLOCK YOUR SIM CARD OR PUK CODE,there is a reason why it is locked,if it was easy to get a code,then anyone could steal your phone and use it and you couldnt stop its use for at least a month.
a phone is jail broken when you alter it to work on a different cell service provider,we at fixya do not jailbreak anything,if it isn't legal,then it doesn't belong here.

Call your cellphone service provider.

I think your cell phone is locked with sim so that it does not support all sim card.
To use it with all GSM network sim you need to unlock it.Visit the site Unlock-Zone.com here they are providing the unlock code at reasonable cost with easy step by step unlocking instructions and unlock it.

MEID A0000042E53F2D for y300c sim unlock code

You need a new sim card just go to your local cell store and they should give you a new one for free

Is your sim restricted ?
If your sim restricted to particular network you need to unlock it , to do so , get the unlock code here mobileunlocksolutions , using unlock code specified in it proceed unlocking your mobile according to the network you need & gain solution

You Can Get Sim network Unlock Code from this vendor : Sim Network Unlock Code

my mobile requier insert sim card.