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Droid 2 touch screen input not working well when charging

Discussion in 'Android Tech Support' started by newfnose, Aug 25, 2010.

  1. newfnose
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    newfnose New Member

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    I have noticed when I plug my droid 2 into ac charger the touch screen goes haywire. Specifically when using swipe it doesn't reckognise half the letters I swipe. When I scroll down a page it is choppy or it sometimes thinks I am doing a long press when actually I am just scrolling. When I unplug from charging the problem completly goes away. Its crazy!
  2. jimnutt
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    jimnutt New Member

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    OEM Charger or a generic charger? If the charger doesn't have a regulated 5Vdc output at 500 ma it can cause strange and mysterious things to happen. Most of the time this problem is caused by using an older charger for a different phone.
  3. QuteMobile
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    QuteMobile New Member

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    Agreed, I have heard this already with non-motorola chargers causing this on Droid 2. Use the manufacturers charger as they are tested.
  4. eliassami5
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    eliassami5 New Member

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    it doesnt matter which charger you are using, its a grounding issue. Mine acts funny when using the moto charger or a generic charger. The Droid 2's also have this issue.
  5. plasticmajestic
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    plasticmajestic New Member

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    I'm seeing this problem when I use the headphone jack as AUX line-in, either to my car or a Squeexebox Boom. Usually after disconnecting the problem clears up fairly soon, if not then I do a power cycle.
  6. white Lightning
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    white Lightning New Member

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    This happens with my X on the OEM charger... when its charging it makes it difficult to use the phone if you have to...

    Pretty annoying when it gets all laggy... but it is what it is...
  7. gary2
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    gary2 New Member

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    I can't believe no one else has figured this out (at least that I've been able to find).

    I have the same issue when plugged in or when I just have it laying flat on my desk. The scrolling is horribly jittery and unpredictable. I have a Droid1. This happens to be my second phone and both exhibited the same behaviors.

    I found a fix, although it isn't permanent. Simply touch the outer bezel holding the screen. I can have the thing plugged in and scroll a short bit then hold it still and it will bounce until I touch (and stay in contact with) the outer edge of the screen bezel. This leads me to believe it is a grounding issue but I'm not adventurous enough to dive into the thing without knowing what needs fixing before hand.

    (to clarify, I touch the outer bezel with my other hand while continuing to scroll w/ the other)

    If anyone has any input, please, lets hear it!
    Last edited: Sep 10, 2010
  8. dirtysanchez
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    dirtysanchez New Member

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    Yo are correct sir pretty much it boils down to Bad screen design and not only Moto but most of the new phones have this grounding issue i think i hear its the defuser thats the real problem and the HTC evo, Samsung Gal S, & Droid x all have this issue my suggestion if you need to use your phone unplug it do your business then plug it back in when done, And i know we shouldn't have to deal with this but its far from a perfect tech
  9. OnMy2ndGP
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    OnMy2ndGP New Member

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    Yep, I've had this problem with my brand spankin' new DX. I only have the stock OEM charger that came with the phone. Yep, the touch screen is very unresponsive ONLY when charging via USB. I can use the same USB cord but plugged into a standard outlet with no problems what so ever. Yes annoying.

    There are always issues with brand new items that come out. Doesn't matter if it's a car, computer, phone, etc. Look at it this way, we are the crash dummies for this new product. dancedroid
    Last edited: Oct 25, 2010
  10. Dingbat
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    Dingbat New Member

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    Thanks

    Son of a gun...my Moto Droid touchscreen was squirreley when in the Moto cradle (and the car dock). Checked and was using a non-OEM charger. Plugged the Moto charger in and all is fine. Thanks all! :icon_ banana:
  11. Slothead
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    Slothead New Member

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    This is not a new topic. I posted to the last one I saw. At the time I thought it was intermittent for me, but now it happens almost always. I end up having to pull the plug to raise my notifications - PITA!
  12. conacher
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    conacher New Member

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    I'm having the same problem with my D2, except it's not even plugged in to anything
  13. Lithoss
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    Lithoss New Member

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  14. EndorphinRush
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    EndorphinRush New Member

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    As hundreds of others I'm having the same issues, though I doubt manufactures have a clue whats going on. When I tried to contact Verizon it was a joke, Motorola sent me back a canned response of how they will look into the problem but it sounds "highly unusual"

    This was present on my Droid 1 and now on my Droid 2

    It's frustrating as H***! Smartphones use a lot of power, and when you like to peck away all day on it like I do, naturally it spends a lot of time on the charger. Wish someone would take responsibility for it or come out with a definitive fix.

    As for myself I tried a few grounding options, at least with the charger and wall receptacles in my house but nothing seemed to help. I seem to think it's a problem with my phone but thinking back on it I can't say that any of the dozen or so replacement phones have been any different. A few times I was sent brand new phones with the accessories and the chargers in those did the same thing.

    Not sure what else I can try... In the mean time I guess the consumers just have to suffer...
  15. Cdjones187
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    Cdjones187 New Member

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    In my opinion its a bad screen digitizer (the glass part of the screen that makes it a touch screen) picking up EMI from the charging cable. Cheap chargers/cables are exactly that, cheap. So they emit more of an electric field than the stock chargers/cables do. Which can cause the digitizer to go crazy even if its not bad.

    If the digitizer is bad, it wont matter which type of cable you use because even a minor EMI can make the digitizer go crazy. How do you think touch screens work? They use EMI! Thats why you cant use a stylis on the new screens, it has to have some sort of electrical emission (your body emits EMI)


    Unless your really confident that you can FULLY disassemble your phone all the way down (and i mean completely) and put it back together you will have to send it back to the manufacturer. If you have insurance, send it to them.


  16. SkreeminR
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    SkreeminR New Member

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    Droid2 USB Charging Problem

    If your Droid2 screen locks up when you are charge using the USB cable that Verizon provided you, there is help!

    I use my laptop to charge my phone and have downloaded the necessary drivers and MotoHelp software. Get it here.. http://www.motorola.com/staticfiles...al_Drivers/MotoHelper_2.0.40_Driver_4.9.0.exe

    Again, using my laptop the phone will lock up. Simply unplug the power-cord to your laptop and VOILA!, it will enable you to use the phone while it is charging. As I previously read it might be a grounding problem.

    Hope this helps EVERYONE!!

    dancedroid
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