The only final solution to this issue - is to order an alternative replacement touch panel, NOT FROM PINE64 - for these three reasons:
Actually, there was a great detailed article somewhere which described sourcing the ARTP and installation in a great detail,
the biggest caveat was that Pine64 changed the pinout of touch and you need to either change in reverse or make some adapter.
However, I lost it :-( Please help me to find it again in this thread - https://forum.pine64.org/showthread.php?tid=19669
EDIT: there also may be some way to fix an existing touch panel, like using a gas lighter's quartz igniter - it works for some people, but may be dangerous:
- an alternative replacement touch panel ("ARTP" below) is guaranteed to be different and is unlikely to suffer from the same problem
- an ARTP is going to be much cheaper, also you will not be rewarding Pine64 for their faulty products by your hard-earned money
- an ARTP will have better availability & shipping options, while the official replacement touch panel is out of stock frequently (including now)
Actually, there was a great detailed article somewhere which described sourcing the ARTP and installation in a great detail,
the biggest caveat was that Pine64 changed the pinout of touch and you need to either change in reverse or make some adapter.
However, I lost it :-( Please help me to find it again in this thread - https://forum.pine64.org/showthread.php?tid=19669
EDIT: there also may be some way to fix an existing touch panel, like using a gas lighter's quartz igniter - it works for some people, but may be dangerous:
Quote:Buy a two dollar lighter that uses a piece of quartz as an ignition source... Electrical discharge... Not the type with a piece of flint inside. The main difference and clue you have the right one is, the flint one has the rollers on top you run your thumb across as you press down on the button/trigger to release its gas for ignition. The lighter you want has just one button/ trigger. First vent or empty butane gas... Release valve on bottom. Then remove the quartz igniter from the lighters housing and place on you phones dead screen click/ press it a couple of times..for me three times. Dead zone/dead bar fixed.. no more ghost touches either. Fixed... 2.00 dollars... but keep igniter around in case screen goes dead again but after a couple of clicks screen permanent fix for me. For a detailed youtube video of the process, search keywords screen fix quartz iginiter.... the error is a digitizer fault, often due to your phone overheating for long periods at a time. The quartz igniter generates around 350 to 400 volts to the lcd screen and attached digitizer ..harmless to your phone and you... this electrical discharge that awakens the dead zone like magic. No costly repairs of digitizer and LCD screen
