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Help Screen recognizes touch when it is physically let go

MichaelSK

Lurker
Good day everyone,

We hand out XCover 4's to colleague's. And some of them have this issue where the touch just won't let go when the touch is physically let go.

We RMA'd one of them and it came back (working again) with nothing but the caption "We only reinstalled android".

So yeah OK, besides factory reset I haven't done that so I try that on the other phones and they actually work again! W00t!

Now I've been given the job to do the same thing with this one, and it just doesn't work. I've tried flashing three types of stock ROM's with no success.

The only thing that comes remotely comes close to my problem is "host/Phantom touch" but the usual fixes don't work for this one.

Also, when it's on the charger it behaves normally without any problems.

I added some screenshots of said phone, with "Developer Options --> Show Taps & Pointer Location" activated. It may look like the phone just freezes, but it's not. The only thing it does is registering a "holding touch" when it's not there,

Things I tried already without succes:
a. Safe Mode
b. Factory Reset/Wipe Cache
c. New (official/stock) ROM
d. Cleaning the screen with a wet cloth
e. Pushing lightly on the sides of the screen so the screen can "make contact"
f. Touchscreen update with *#0*#

Thanks for any responses in advance.

Michael

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