Left side touch screen not working after home button transfered
After carefully transferring home button from an ipad with cracked lcd to a used working screen, left side of touch screen stopped working.
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Hi Chris,
From my reading of the Screen Replacement guide, it appears the digitizer has two connectors, which is unusual but would explain the problem you're seeing. If one of those connectors isn't seated right or maybe has some debris or a bent pin, it makes sense that half the screen wouldn't be working, as I assume each of the two plugs controls half the screen. Here's a picture of those two connectors.
I'd say your best bet here is to open it back up and unplug those two connectors. Get out a magnifying glass and a bright light and examine the sockets on the motherboard and the plugs on the cables for any indication of foreign objects or bent/broken pins. Once you're satisfied it's all good, clean it all with 90% or higher isopropyl (rubbing) alcohol, let it dry then reassemble and retest.
Chances are one of those plugs isn't fully seated, but check for any issues as long as you've got it open.
Once you've done that, come on back and let us know what you found. If that fixes it, great; otherwise we'll try and help you figure out what to do next.
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Hi Jerry,
Thank you for your great answer, it all makes perfect sense.
Unfortunately this is not the issue for me. I have now found the issue.
This is the first Air 2 I have done and it seems I got a bit careless when removing the screen (I'm using a used screen from a locked device) and damaged the cable and chip just next to the home button. I hadn't noticed before as it was covered by tape.
I loke to use a plastic playing card to run around the edge and I guess I got too close to home button without realising the danger.
Live and learn!! I won't make that mistake again!
I will now be sending lcd off for refurbishment.
@dadibrokeit, two connections in ipads isn't unusual at all. Ipad air 2 has one for the digitiser and one for the lcd as its a bonded unit. Not a cheap part to replace either. Most ipads have two, and a home button connection. Three if you count the lcd connection in basic ipads.
@strongbow Ah, I haven't done much work on iPads; maybe one if I recall correctly. Thanks for the information!
