Middle of touchsreen not working after repair

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1

I just changed the display assembly on FPU1 after dropping it about 10 m.
After dropping it, the touchscreen worked ok except for the lower left hand corner.

I ordered the new display unit and installed it this afternoon, and now the middle (and lower left hand) of the touchscreen doesn’t work. On the touchsreen test (✏ How to test your touchscreen for abberant behaviour (is it a hardware or software failure?)), it shows a black square in the middle. Occasionally, I can touch something in the “dead zone” and it registers, but it’s random (and rare).

I’ve dissasembled and put it back together 5 times now, and no luck -except for about 30 second when it worked properly, then it stopped again.
I figure something is misaligned (or I was very unluck to get a faulty display unit).
Any ideas?

Thanks for the help!

2

I’ve never heard of it, but it might be possible. Did you get in contact with Fairphone support?

3

Late reply, but yes I contacted them and shipped it off.
They repaired it at no charge and sent it back, so it seems it was indeed a faulty unit!
Works perfectly now.

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4

Nice to hear it worked out in the end. :smile: