She writes: “I have an lg stylo 4 and the screen is done for. I can’t hit the number I need to unlock it to load up. Please help! I need my messages!” ...

LG is shutting down its mobile developer website on December 31. You won’t be able to get a bootloader unlock key for your phone thereafter.

Knock codes work by letting people select patterns to tap on a phone's locked screen. LG popularized the method in 2014, and now there are approximately 700,000 people using this method in the U.S ...