MY PHONE IS LOCKED AND ITS A OPTIMUS M - LG Cell Phones

your lg 40 will be locked onto a mobile phone provider and you have tried to plug in a sim card that is not on the original locked mobile phone provider . Talk to original provider of network about unlocking your phone to other networks

UPDATE THE CELL

The only option available for you is to unlock your cell phone. If you unlock your phone, you can then use it with any GSM SIM card. The safest and easiest way to unlock any mobile phone is using unlock code. You can unlock your Fido network locked LG Optimus 2X too using unlock code itself. You can get the unlock code for your LG Optimus 2X from SuperUnlockCodes.com at affordable cost with easy unlocking guide. Good luck.

PUK is the code that is associated with SIM.(network service provider)
you can have from them.

Unlocking your LG Optimus can be done with the help of ProUnlocking.com where you need to mention your phone model,network and country your phone is locked to.They provide you with unlock code and free unlocking instructions.

To Reset a LG Optimus Zone that is locked.

1. Press and hold the Power button.
   
2. On the device screen, select Power off.
3. Press and hold the Volume Down, Home, and the Power button simultaneously until the reset screen appears.
4. The device will automatically initiate a factory reset.

My lg p970 optimus black has been pattern locked and its showing too many pattern attempts and i forget my gmail id also

To Unlock LG Optimus 2X P999 use Unlock code....Visit the site
Theunlockarena.com
get Unlock code at reasonable cost and unlock it easily......You need to specify the network and country it's locked now and get the code Unlock it.

Keep it locked in the safe. Now it will be on safe mode.

IMG272