Android Knock code unlock

Hi,

Several months ago my colleague bought LG G3 D855, and she asked me to upgrade it to Android Lollipop and root it for her last week.

Unfortunately yesterday she forgot the knock code combination…What a tradegy…She asked me for help,and I tried to unlock the knock code for her.

I found the knock code combination stored in the file knockcode_pref.xml. You guys could take a look at my findings
http//www.cnblogs.com/pieces0310/p/4357472.html

Rick