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  1. Thread Author  Thread Author    #1  

    Default My LG G2 won't knock on

    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?
  2. #2  
    DWR_31's Avatar

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    Default Re: My lg g2 wont knock on

    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!
  3. #3  

    Default Re: My lg g2 wont knock on

    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.
  4. Thread Author  Thread Author    #4  

    Default Re: My lg g2 wont knock on

    Yes im using the stock launcher and the tap off still work

    - - - Updated - - -

    How do u do a lg backup?
  5. #5  

    Default Re: My lg g2 wont knock on

    It is a app built in. Look for it in apps, or search.
    Quote Originally Posted by OneNecklace View Post
    Yes im using the stock launcher and the tap off still work

    - - - Updated - - -

    How do u do a lg backup?
  6. #6  
    DWR_31's Avatar

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    Default Re: My lg g2 wont knock on

    Quote Originally Posted by Justin Cardwell View Post
    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!
    Thanked by:
  7. #7  
    Mista_J's Avatar

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    Default Re: My lg g2 wont knock on

    Disable knock on/off then enable it again.

    Posted via Android Central App
  8. #8  

    Default Re: My lg g2 wont knock on

    Didnt work. Any new ideas. Can they fix it at the Sprint Store ? A big feature of this phone wont work ? This is BS !
  9. #9  

    Default Re: My lg g2 wont knock on

    I am having the same problem ever since the KitKat upgrade. :-(
  10. #10  
    DWR_31's Avatar

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    Default Re: My lg g2 wont knock on

    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!
  11. #11  

    Default Re: My lg g2 wont knock on

    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.
  12. #12  

    Default Re: My lg g2 wont knock on

    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
  13. #13  

    Default Re: My lg g2 wont knock on

    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.
  14. #14  
    mxmarcus's Avatar

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    Default Re: My lg g2 wont knock on

    After the update to KK, things are not looking good
    Delirious D likes this.
  15. #15  

    Default Re: My LG G2 won't knock on

    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....
  16. #16  

    Default Re: My LG G2 won't knock on

    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
    Thanked by 15:
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  17. #17  

    Default Re: My LG G2 won't knock on

    Quote Originally Posted by Smith I Run View Post
    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...
  18. #18  
    DWR_31's Avatar

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    Default Re: My LG G2 won't knock on

    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!
    Thanked by:
    Delirious D likes this.
  19. #19  

    Default Re: My LG G2 won't knock on

    I tried. Same result - no "settings" menu for Sprint even though this takes you to the hidden menu.
    Delirious D likes this.
  20. #20  

    Default Re: My LG G2 won't knock on

    Quote Originally Posted by DWR_31 View Post
    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.
    Thanked by:
    Delirious D likes this.
  21. #21  

    Default Re: My LG G2 won't knock on

    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....
    DWR_31 and mrones like this.
  22. #22  

    Default Re: My LG G2 won't knock on

    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.
  23. #23  

    Default Re: My LG G2 won't knock on

    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
  24. #24  

    Default Re: My LG G2 won't knock on

    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.
  25. #25  

    Default Re: My lg g2 wont knock on

    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%
    DWR_31 and Eugenio Infurna like this.
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