First for this to work you need a pair of headphones that are detachable at the headphones end. It's simple. Remove cable from headphones end first before plugging into the LG V30. Then next plug in the headphones end. That's it. It fools the LG V30 you using a high Impedance set of headphones. Tried this with 3 different headphones and worked everytime.(Master & Dynamic HM30, Shure SRH840, & AKG's Quincy Jones editions.) Hopefully will be of help to someone.