LG mobile phone unlocking

If it really doesn't work, back up the phone book and important short messages first, then take the invoice to the after-sales store and ask them if there is a charge for unlocking. The specific price varies, maybe 20-50. If there is no charge, unlock. If there is a charge, let them brush your computer. It is free, so you can say that you are uncomfortable when using it and ask them to upgrade the firmware for you. Upgrading firmware is an official statement, and the folks call it a brush.