7.9 inch display / Model A1432 / Available in black or white / Announced October 23rd, 2012 / 16, 32, or 64 GB capacity

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Digitizer activating itself after digitiser replacement

Hi Guys.

I hope someone can help me.

Ok i don't use replacement digitizers that are not pre soldered i think i need to hone my soldering skills before i go anywhere near that.

I always use screens with all the soldering pre done.

I'm asking as this is my last screen & this is is special present for a birthday otherwise i would just put another screen on.

I have fitted the digitizer & it all works fine until i seat the screen onto the adhesive.

Once this happens it works fine for a couple of minutes but then the screen starts to activate itself swiping through screens opening apps & typing into any text field that appears that sort of thing.

Ive also noticed the top half of the screen then becomes unresponsive also.

But as soon as i lift the screen up again it all starts to work fine.

I have a horrible feeling that where the digitizer cable is supposed to bend itself back it has kinked a bit.

I do always with any repair make sure not to trap or crease any cables this must have sprung back as i was seating the screen.

This cable has not creased badly as i hadn't started to press down fully.

Is this the issue or cold there be a way to get this solved.

Thank you in advance guys.

Answer this question I have this problem too

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Thank you for your helpful comments guys but i have an update.

I have got to the bottom of it.

When setting the screen down if you don't check how the digitiser cable is folding if you don't fold the cable forward it creases the cable & leaves the screen unusable.

I now always get a spudger & make sure the cable is folding forward i have never had a problem since

Hope this helps some of you guys out a bit

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So did you replace the digitizer? Or just bend the cable the opposite way? I think I'm having the same issue. But my digitizer is creased. I think I need to order a new one

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My iPad is doing the same thing but the top half is responsive and I have had it working for a few months but I took it to a screen repair place because my glass was cracked.

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9 Answers

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Hi everyone. I've found what's going on!!

Turns out, there is a small strip of black tape in between the glass and frame that keep the digitizer from "touching" itself and activating home button + digitizer randomly.

The fix for this is simple. Just put a thin strip of tape in between the glass and it's flex cables. I suggest Kapton tape since it's adhesive is light and wont damage the flex, as well as being thin, or just carefully transfer the thin tape strip from the original digitizer to the replacement. Be sure not to cover the Digitizer Adhesive of course!

Here are some pictures for you guys!

http://imgur.com/a/mwTJa

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you are a life saver!!! thank you !!!

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I had this problem tons of times and even transferring the black tape from the original digitizer didn't always fix the job since its all about the tiny layer of kapton tape underneath the thicker black one and this layer sometimes gets wrinkled.

Bought a big roll of Kapton tape off ebay and ever since I use it to tape off everything that looks like coltan or metal on my ipad mini's and airs, no more problems at all! Kapton tape is basically insulating-heat resistant tape and for some reason its the only one fixing this problem.

Other causes of ghost touch can be that the corners are bent, putting a stress on the screen or that you damaged the digitizer flex, although in my experience 95% of the time the Kapton tape does the job!

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In my experience one of two things could be the issue.

  1. You have a defective part.
  2. There are 4 foam pads that sit between the LCD and the back side of the digitizer. For some reason these pads will at times interfere with the touchscreen causing the digitizer to exhibit "phantom touch syndrome" as I like to call it :)

These pads aren't needed and I'm not entirely sure why they cause issues on some digitizers and not on others.

Let us know the outcome!

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Alex Nguyen, you have officially saved my life. Thank you!!

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Alex Nguyen is right , got same problem ,half touch not working and icons moving itself after digitizer replacement, you need to cover the digitizer connections with adhesive tape as in the pictures .

many thanks

tahir

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hello. Quick question: i still have this problem even if digitizer isn't seated. I have a bad digitizer or what?

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I have exactly the same problem, but on an ipad2... Do you know if i could fix it with the tape? Thnx!

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hi i also have this problem ipad 3 wifi

screen moves on its own sometimes and one half of screen does not work send me an email manazoid4@gmail.com

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Alex Nguyen, thank you for sharing this, it has been very helpful.

Thanks again.

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I have this problem with a OnePlus 3 and am on the *second* replacement digitizer assembly ( thought the first replacement that I got was defective) with the exact same problem: a strip down the left side of the screen is completely unresponsive, and then a portion of the right side of the screen causes phantom touches on the left (ie tapping the number 3 causes a simultaneous press on the 1 so I can't even enter my pin). This happens when the digitizer is not even seated, just sitting next to the mainboard with the ribbon cable connected and nothing else touching. I'm pretty stumped.

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Kenny Leonard will be eternally grateful.
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