Originally Posted by Droidula

Did you restart and try it again? It definitely worked for me after I created a shortcut to LG Hidden Settings and then changed the settings. I tried using Quick Settings and a controls widget to activate the hotspot, and both worked. There was one step that was a bit confusing. After you click activities, expand com.lge.hiddenmenu, and select (what is for me) the second item down, LG Hidden Menu - com.lge.hiddenmenu.LGServiceHiddenMenu_Settings. That should create a shortcut on your screen. Go into that, select data settings > DUN NAI > Extend modem = NO. Then back out of the menus and it should work, but as it says you will have to set it to NO every time you restart the phone. Hope it works for you.