Touch acting erratically after display replacement (Need to squeeze)

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iPad Pro 12.9"

High performance tablet computer released by Apple on November 11, 2015. Model A1584.

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ahmedp800 @ahmedp800

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Gepost: 26 jan. 2021

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Touch acting erratically after display replacement (Need to squeeze)

Hey guys, I have recently replaced iPad Pro 12.9 (1st Gen) Display.

Everything was fine, except that suddenly the touch started acting erratically, and by that I mean, if I tap the bottom of the screen, the top of the screen registers unintended taps, I confirmed that with a Touch-Test App.

Now, here is the thing, I figured out that by squeezing the bottom-left side of the iPad (see photo), touch works perfectly!

What could be the reasons? anyone familiar with such issue? any easy fix? or do I need to re-seat the display? (Which I'd rather not).

Photo of squeezing spot: (++https://imgur.com/3Y0XB1s++)

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bert.harmidomski @tojaert

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Gepost: 29 jan. 2021

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hello ahmedp800,

you have got faulty touch interface, big metal square on screen flex. It should be replacement. Many times, “small, Chinese hands” when assembly a big, 12.9” screens use a used interfaces and flexes for new product. Most of those are re-soldered from broken and flooded ones and normally not working properly. Inspect your screen, I guess - there are lots of fingers signs and small, blue stamps? Everywhere? This is a reason why most brand new screens are with no touch interface - it needs to be transferred from your original, broken one - that’s a guarantee full compatibility.

how to solve the problem: the first choice: I thing, you should send back this “brand new” screen (if possible: transport foil is on it or replace with a new one more time) and find other best offer. Somewhere was a guy, in LA who refurbish a tablets screens. His work is much better than Chinese, new screens. Find him on eBay. The second choice is a buy a brand new touch interface with the flex for your model (circa 20$) and solder it to your “new”screen. I’m afraid there is no other options.

I assume the situation that the new screen is properly connected and there is no situation that you put the whole thing together wrongly. Check it before: disconnect the battery, detach the new screen, insert it again, making sure the connection is ok. Connect the battery and check the touch. Be very gentle, it is easy to destroy the contacts. You should hear a click when the connector finds its own place.

if more questions, wright here or find me (view profile) and send a email.

regards,

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Thanks alot, appreciate your detailed response.

I need to decide on next step.

29 jan. 2021 door ahmedp800

your link doesn't work. By the way, you need disassembly iPad again. Take off the screen (its easy but be carefully) and inspect ports on lower/left side of your screen. Flexes can be not proper inserded or have a dirty pins or be a splited. I vote for that first choice.

29 jan. 2021 door bert.harmidomski

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Thanks alot, appreciate your detailed response.

I need to decide on next step. — ahmedp800
your link doesn't work. By the way, you need disassembly iPad again. Take off the screen (its easy but be carefully) and inspect ports on lower/left side of your screen. Flexes can be not proper inserded or have a dirty pins or be a splited. I vote for that first choice. — bert.harmidomski

iPad Pro 12.9"

Touch acting erratically after display replacement (Need to squeeze)

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