The LG Envy requires the user to enter a "lock code" to perform certain functions on the phone. For example, to perform a factory reset, the user must enter the four-digit lock code twice during the ...

It is not possible to directly access the passcode on an iPhone. If you have forgotten the passcode for your phone, then you will need to use iTunes to factory restore your phone so you can reset the ...

I had a new alternator installed and now my car radio is locked and it's asking me to input a code. The service guy said this is because the battery had been disconnected and that the radio code ...