So I finally got fed up with my phone and tore it completely to bits. I had previously added some tape behind the screen connector which didn’t really help. Now I think I have found the plausible root cause to this. Or if not this issue then at least a future problem that’s going to happen eventually.
The screen flex cable rubs against the very sharp edge of the case itself. My cable had copper showing through the coating. I took some pictures but they didn’t really come out very detailed. Anyway. I put a piece of tape on the cable to fix the insulation and scraped the edge of the case a little bit smoother. If this is in fact the root cause of our ghost touch problem then I would be very interested to see how a “software fix” would fix it. My brothers FP4 had the exact same issue.
https://photos.app.goo.gl/WuqabWEoRVwn1Zea8 - pictures. Edit: added a few more macroish shots.
6 Likes