1. leelauer's Avatar
    Just recently I started having a problem with my Nexus7 (2012) where the touch screen acts erratic, missed hits and random menu activation but only when the tablet is plugged in and charging. As soon as I remove power it acts fine.

    Any ideas?
    02-28-2015 01:29 PM
  2. Rukbat's Avatar
    It could be a filter capacitor in the charging circuit going bad, a battery at end of life or the charging cable is too close to the screen (make sure it comes off the phone at right angles for at least 6").
    ALEnaext likes this.
    02-28-2015 02:16 PM
  3. zedorda's Avatar
    If by chance you're not using the stock charger make sure its not too much more wattage than the stock charger. I experienced this same problem when I tried to use a non-stock charger of very high power output.
    02-28-2015 02:26 PM
  4. iresq's Avatar
    That's an issue normally associated with a cheap chargers introducing noise. Did you change chargers? Try another charger. My high amp charger does the same.
    Tim1954 likes this.
    03-04-2015 03:07 PM
  5. Drackon Lord's Avatar
    I know that this is an older thread, but if someone have this problem and is searching for an answer: The lack of ground in the electrical supply (outlet, PC....) cause your screen to go crazy. If you lift your feet from the ground or touch a metal object your screen will be fine.
    Javier P, Nike Kosasih and Tim1954 like this.
    05-06-2016 04:52 AM
  6. Muhammad Rizqi Imani's Avatar
    I know that this is an older thread, but if someone have this problem and is searching for an answer: The lack of ground in the electrical supply (outlet, PC....) cause your screen to go crazy. If you lift your feet from the ground or touch a metal object your screen will be fine.
    OMG Touching my foot to a metal worked
    07-04-2016 04:55 AM
  7. Nike Kosasih's Avatar
    I know that this is an older thread, but if someone have this problem and is searching for an answer: The lack of ground in the electrical supply (outlet, PC....) cause your screen to go crazy. If you lift your feet from the ground or touch a metal object your screen will be fine.
    OMG.. it is crazy hack but its work! I just simply lift my feet from the ground and my screen is totally fine.. but if my feet back to the ground, the screen is going crazy again. I'm using samsung a5 btw. Thanks to you!
    01-26-2018 09:46 AM
  8. Echallita3's Avatar
    I will tell you once go buy a 2.0 charger. Becouse if you had a charger its usb is blue it means it is a fast charger but not for all phones some of them can't take that much so the screen start on double tapping ext.. i have a charger of 3.0 i tried it on my htc it made my touch bad i tried it on samsung it was good so not all phones are compatible with 3.0 or ext.. chargers it will damage your phone.
    03-12-2018 03:53 PM
  9. anon(10449435)'s Avatar
    That works , but for short time. I think may be the charging cable is bad.
    04-22-2018 10:50 PM
  10. johnsnails's Avatar
    In my case (pun intended), it was because the case I had on was preventing the phone charger from being fully in. if I take of my case phone charges and screen/fingerprint reader all work as expected.
    02-08-2019 08:23 PM

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