When you put a SIM card of another network provider, your LG device shows SIM Invalid, it means that the network is locked, and can only be used with the carrier that has sold this mobile phone.
For some US carriers, such as AT&T, Cricket Wireless, T-Mobile & MetroPCS; is necessary to unlock by an app called Device Unlock. Our company also offer a solution to unlock the network of these phones through an unlock authorization; When it is approved, you simply have to access the app and tap the Permanent Unlock button.
You need dial a secret numbers to enable a hidden menu for type the unlocking code. Each LG model has a different sequence to enable the hidden menu. Don´t worry, we always send the unlocking instructions to enable this menu by email.
You do not need the original SIM card to unlock the device. The unlocking code can be typed without SIM card.
SIM unlock and unlock pattern lock or password are different things. If you need remove the pattern lock, you must reset the device.
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