1. mrsharrypotter's Avatar
    I got my LG G2 a couple months ago and I love it! However, yesterday something odd started happening.

    My KnockOn feature wasn't working, so I hit the power button to turn the phone on, but the screen kept shutting off. I had to reset the phone by holding the power button down.

    The phone came back on. I shut the screen off and the KnockOn feature still wouldn't work. Taking the phone case off made the issue go away temporarily, but then the problem reappeared.

    I made it to the home screen and recalibrated the phone.

    You go to Settings> Gestures> Then scroll down to the last option which is "Motion sensor calibration". You lay the phone on a flat surface and hit the "calibrate sensor" button. Bingo. Problem solved.

    It's worth trying this fix if your phone's screen is acting up, the touch sensors seem off, or if the KnockOn isn't working.
    02-16-2014 07:27 PM
  2. austriak's Avatar
    Thanks. Great advice.
    02-16-2014 07:41 PM
  3. pantlesspenguin's Avatar
    Thanks for this!! I have this problem occasionally.
    02-18-2014 01:49 PM
  4. navynmr's Avatar
    1) Download this file: HiddenMenu.apk
    2) Place it on your SD card and use Root Browser (by JRummy, free on the Play Store) to move it to the /system/app folder. Then long press the file in Root Browser to bring up the menu that allows you to change permissions to "rw-r--r--". That will be Read for Owner, Group and Others and Write for Owner.
    3) Reboot your phone and get the Terminal Emulator from the Play Store. Start Terminal Emulator and type the following without my parenthetical notes: su (then press Return. Type the next part all together.) am start -a android.intent.action.MAIN -n com.lge.hiddenmenu/com.lge.hiddenmenu.HiddenMenu
    4) The Hidden Menu app should start. Select these options: HW Device Test > Touch Test > Touch Firmware Upgrade
    This method has worked every time for me. Good luck!

    I've copy pasted the above from a reddit post. Find the HiddenMenu.apk on google, forum doesn't let me post a link. to it.
    11-22-2014 04:41 PM
  5. Prado61's Avatar
    Thanks the issue is resolved after calibration
    09-12-2015 10:52 PM

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