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Ghost touches and unresponsive area on lower screen


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Just a quick follow up... F(x)tec Support sent my replacement screen out on Friday, I received it less than 24 hours later, replaced it as per their video instruction, and it's now working perfec

Alright.... I received my screen today, replaced it. Phone works again as it should!

I still did not use the new display too much, but I feel I have a working Pro1 again. 🙂 I mostly notice the working of touch panel is smooth again, so I was not able to enter my unlock pattern while

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On 1/9/2021 at 12:40 PM, hka said:

Six months after replacing the screen the ghosts are back:( Same location as last time.

That's some bad luck. Are you still under warranty?  How did you get it fixed last time?

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4 hours ago, Slion said:

That's some bad luck. Are you still under warranty?  How did you get it fixed last time?

Last time I got a new screen from fxtec and replaced it myself. Sent a mail to support again and asked if they could send another one (and if they have checked with their supplier about fixing the root cause).

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They turned me down for sending a display after first considering it.  They indicated that they are no longer confident that just replacing the screen addresses the underlying issue.  Hence, my Pro 1 is now at their offices.

With a number of these issues popping up, they may want to do a more thorough investigation.  Doesn't mean it won't turn out to be the display, but I think they want to look more deeply into it.

Hope you do get the new display, however.

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8 minutes ago, Hook said:

With a number of these issues popping up, they may want to do a more thorough investigation.  Doesn't mean it won't turn out to be the display, but I think they want to look more deeply into it.

When I have replaced my screen with one bought at Aliexpress, I have noticed some dust at one of the shorter sides.

I think it may be in connection with the problem... or may not.
However, that time official support did not seem to be interested...

Anyway, if I will have a similar issue with my current display, I may try to replace it with my original one first...

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10 minutes ago, VaZso said:

When I have replaced my screen with one bought at Aliexpress, I have noticed some dust at one of the shorter sides.

I think it may be in connection with the problem... or may not.
However, that time official support did not seem to be interested...

Anyway, if I will have a similar issue with my current display, I may try to replace it with my original one first...

It's possible, but I would expect the effect of that would be more along the lines of causing touches to be inaccurate.  That used to happen a lot with Palm PDA digitizers and the cure most times was to run the corner of an index card carefully around under the bezel.  But, as I say, the effect was to make the digitizer inaccurate (you would tap one place but it would be interpreted as tapping at a different location).  Not clear why crud would trigger an avalanche of touches across the screen on it's own, while just sitting on a desk.

Not saying you are wrong.  Just raising a question. I'm certainly not an expert on any of this.

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1 minute ago, Hook said:

It's possible, but I would expect the effect of that would be more along the lines of causing touches to be inaccurate.  That used to happen a lot with Palm PDA digitizers and the cure most times was to run the corner of an index card carefully around under the bezel.  But, as I say, the effect was to make the digitizer inaccurate (you would tap one place but it would be interpreted as tapping at a different location).  Not clear why crud would trigger an avalanche of touches across the screen on it's own.

Not saying you are wrong.  Just raising a question. I'm certainly not an expert on any of this.

I am also unsure and that is also a reason why I have not disassembled my phone again for testing - that is my daily driver...

However, the dirt ("pocket dirt") seemed to be relatively high amount and I am also unsure which short end was it.
However, the problem was closer to the bottom end and when I have pressed the lower left corner, ghost touches have disappeared or improved for me for a while.

So I am also just guessing but as more people having the same issue, it would be more important to know the valid reason...
I still think it is most likely a display issue, but if the assembly process is similar, a similar gap may exists of different phones and dust may cause jokes... so it simply may worth a try.

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