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Phantom touches on FP4? (discuss.tchncs.de)

submitted 2 months ago by [email protected] to c/[email protected]

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Hi all! I have a Fairphone 4 that is serving me very well, but it occasionally reacts as if someone had touched the screen, such as scrolling randomly, zooming in in the camera, pulling down the settings menu, etc. I assume that there's something on the display that occasionally activates something.

I have cleaned the display several times, but still have the issue. Before I buy a new display to swap it out, which costs 70€, I'd like to know if anyone else has had this issue, and if you found a good way to fix it other than swapping out the display :).

Thank you!

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[–] [email protected] 4 points 2 months ago* (last edited 2 months ago) (1 children)

Yes this is a common issue on FP4 sadly. Lots of huge forum threads about it and basically no response from the company after years of asking. Installing a new screen seems to sometimes fix it but not always. (Someone suggested a sort of "pair" behaviour, where some screens work fine with one device but not the other) I had it on my phone too, but it kind of just went away almost completely. Anecdotally i feel like there might be a correlation between low battery and frequency of ghost inputs. Have you tried resocketting the display cable yet? That seems to have helped many people and is fairly easy to do and free.

[–] [email protected] 2 points 1 month ago

I finally tried resocketting the cable, and I've only seen the issue a little bit since, but not as extreme. But I'm not sure if it's real or just my perception ;). I'll keep an eye on it. Thanks for the idea!