05-28-2016 02:15 PM
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  1. OneNecklace's Avatar
    Starting to today my lg g2 wont knock on I tried to tap above the lg logo and it wouldn't knock on and I calibrate the sensor. Do any one else have and other fixes?
    03-30-2014 05:38 PM
  2. DWR_31's Avatar
    Are you still using the stock launcher? If so, does it still do knock-off with the screen on? If it does, we are basically waiting for the 4.4 update to fix it. In the meantime here's a quick fix.

    https://play.google.com/store/apps/d...ptum.proximity

    Use the hold action when screen is off to wake your device and leave the knock-on setting on the phone on so you can double tap to turn it off.

    Sent from my SPARK enabled Sprint LG G2. K00949438Yd FRAMILY!
    03-30-2014 07:06 PM
  3. Justin Cardwell's Avatar
    Is it still enabled in settings, if not try to reboot and check again. Also, did you do a LG backup, if so try to restore to a previous time when you knew it was functioning.
    03-30-2014 07:14 PM
  4. OneNecklace's Avatar
    Yes im using the stock launcher and the tap off still work

    - - - Updated - - -

    How do u do a lg backup?
    03-30-2014 07:17 PM
  5. Justin Cardwell's Avatar
    It is a app built in. Look for it in apps, or search.
    Yes im using the stock launcher and the tap off still work

    - - - Updated - - -

    How do u do a lg backup?
    03-30-2014 07:19 PM
  6. DWR_31's Avatar
    Is it still enabled in settings, if not try to reboot and check again. Also, did you do a LG backup, if so try to restore to a previous time when you knew it was functioning.
    Factory data reset doesn't work. Sprint already knows about the issue. It's a bug.

    Sent from my SPARK enabled Sprint LG G2. K00949438Yd FRAMILY!
    supercalo2000 likes this.
    03-30-2014 10:38 PM
  7. Mista_J's Avatar
    Disable knock on/off then enable it again.

    Posted via Android Central App
    03-31-2014 06:20 PM
  8. supercalo2000's Avatar
    Didnt work. Any new ideas. Can they fix it at the Sprint Store ? A big feature of this phone wont work ? This is BS !
    04-10-2014 03:48 AM
  9. gsdurran's Avatar
    I am having the same problem ever since the KitKat upgrade. :-(
    04-10-2014 03:12 PM
  10. DWR_31's Avatar
    Finally got Knock On working again.
    Had to go to stock LG launcher, then toggle the setting off and on, then reboot.

    The trick in getting it to work is the 1st tap has to be at least 1second before the second tap.

    NO DOUBLE TAPPING QUICKLY!

    Sent from my SPARK enabled Sprint LG G2. K00949438Yd FRAMILY!
    04-24-2014 09:52 PM
  11. Mikey47's Avatar
    1 second? If my knocks are more than a quarter to half a second apart it won't recognize them.

    Sent from my LG-LS980 using AC Forums mobile app
    Tritonemusic likes this.
    04-24-2014 09:55 PM
  12. Delirious D's Avatar
    This started happening to me today.. Knock knock actually sold me the phone..
    I can knock off but not on... Still stock launcher.



    Posted via Android Central App
    04-26-2014 07:42 PM
  13. coolblood2's Avatar
    I noticed that mine has had the same problem lately with knock on not working but knock off is just fine. As far as I can narrow it down it started happening a day or two after I rooted and starring using the apps Greenify and G2 Exposed. This the case for anyone else? I love both these apps and do not want to remove them before I see if this could more likely be caused by something else.

    Ok quick updated. Did different things with freezing the apps and no change so I'll assume they aren't the culprit. Could altering the stock keyboard be able to swype cause it? Screen going bad? I just want to solve this. I have noticed very occasionally (not often at all) the screen will act like it doesn't recognize my pages when scrolling webpages or selecting an app in the app drawer.
    04-27-2014 06:15 PM
  14. mxmarcus's Avatar
    After the update to KK, things are not looking good
    Delirious D likes this.
    04-28-2014 09:48 AM
  15. coolblood2's Avatar
    I'm beginning to think must just be a weird hardware issue. If I wrote the screen it'll work one time lol. Guess I might actually have look into a replacement....
    04-28-2014 05:18 PM
  16. Smith I Run's Avatar
    There is a solution; (not sure about it, my friend had the same problem and he fixed it with this method)

    Open dialer menu and type;
    5689#*980# (Sprint)
    3845#*801# (T-Mobile)
    3845#*803# (AT&T Canada)
    3845#*802# (International)
    3845#*800# (At&T)
    3845#*980# (Verizon)

    And when hidden menu is showed up, go to "Settings"
    and go to "Update Touch Firmware".
    The touchscreen won't work until after 5 seconds, Wait for it and if touchscreen gets working, exit the menu.
    Lock the phone and try knocking on the screen, It should be working
    05-02-2014 01:52 PM
  17. Delirious D's Avatar
    There is a solution; (not sure about it, my friend had the same problem and he fixed it with this method)

    Open dialer menu and type;
    5689#*980# (Sprint)
    3845#*801# (T-Mobile)
    3845#*803# (AT&T Canada)
    3845#*802# (International)
    3845#*800# (At&T)
    3845#*980# (Verizon)

    And when hidden menu is showed up, go to "Settings"
    and go to "Update Touch Firmware".
    The touchscreen won't work until after 5 seconds, Wait for it and if touchscreen gets working, exit the menu.
    Lock the phone and try knocking on the screen, It should be working
    anyone tried this with sprint? no settings or update touch fw in the menu...
    05-03-2014 07:25 AM
  18. DWR_31's Avatar
    Okay folks. Knock-off works, but Knock-on doesn't.
    Turn off the setting in the gestures menu. Reboot your phone. Turn on setting. Power button lock your phone.
    Now tap screen firmly for one second then tap firmly again. (No quick tapping like you're trying to turn the screen off)

    Say this out loud. (1.- 2.)
    One dot, two dot.
    The first touch has to be firm and for a solid 1 second.

    Sent from my SPARK enabled Sprint LG G2. K00949438Yd FRAMILY!
    Delirious D likes this.
    05-05-2014 01:41 PM
  19. gsdurran's Avatar
    I tried. Same result - no "settings" menu for Sprint even though this takes you to the hidden menu.
    Delirious D likes this.
    05-05-2014 05:39 PM
  20. gsdurran's Avatar
    Okay folks. Knock-off works, but Knock-on doesn't.
    Turn off the setting in the gestures menu. Reboot your phone. Turn on setting. Power button lock your phone.
    Now tap screen firmly for one second then tap firmly again. (No quick tapping like you're trying to turn the screen off)

    Say this out loud. (1.- 2.)
    One dot, two dot.
    The first touch has to be firm and for a solid 1 second.

    Sent from my SPARK enabled Sprint LG G2. K00949438Yd FRAMILY!
    This did work for me finally but the responsiveness is not as good as before the kitkat upgrade.
    Delirious D likes this.
    05-05-2014 05:44 PM
  21. Delirious D's Avatar
    WTF THAT WORKED... BUT YEA LIKE gsdurran SAID THE RESPONSE IS NOT THE SAME..

    you quick tap for off but slow tap for on lol..

    hopes that's fixed soon..
    but atleast I can go back to being lazy and not pick up my phone to turn it on lol....
    mrones and DWR_31 like this.
    05-05-2014 09:32 PM
  22. coolblood2's Avatar
    This trick does work but only about 60% of the time. Would be nice to get some response officially from Sprint......
    Delirious D likes this.
    05-06-2014 12:18 PM
  23. phoneaddict78's Avatar
    Mine works a lot better actually after Sprint's KK update. I'm using Nova Prime launcher don't know if that makes a difference.

    Sent from my LG-LS980 using AC Forums mobile app
    05-06-2014 12:44 PM
  24. coolblood2's Avatar
    I wanted to add that I have noticed that also my screen won't turn on when i unplug from charging. Although it will when i plug it in to charge. Not sure if that makes a difference or not but kind of weird.
    05-12-2014 12:15 PM
  25. darrylklose's Avatar
    Nice job DWR-31! Of all the suggestions this one solved the problem. Takes a little practice to get the right timing but now working 100%
    Eugenio Infurna and DWR_31 like this.
    05-13-2014 09:58 AM
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