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Ghost touches and unresponsive area on lower screen


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On 11/21/2021 at 5:03 PM, Chris2 said:

Thanks for your answers. I just contacted the support. I received my phone last year in August, so they should agree. Hopefully, the replacement of the screen won't take to long.

After I contacted the support they wanted me to send some photos of the display. I did that 20 days ago but I received no reply since then...

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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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Update: fx support got back to me and offered a free replacement screen assembly, which they claim will become available some time in January. They also pointed me to an aliexpress seller and suggested if I want it fixed sooner, I could buy this at my own expense.

With fx timelines being what they are, I am not holding my breath for January, so have ordered screen from Aliexpress. Meanwhile, my current screen has mainly settled down and just sometimes has that one unresponsive row, but no crazy random presses, thank goodness!

It seems I may now have another major problem - the battery - but that will be for another thread!

Good luck to everyone else with this issue!

I'll certainly update it once I receive my aliexpress screen and attempt the swap-out.

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Hi mbecroft,

I had this problem too: the offer of a replacement was delayed from October - so I ordered the screen replacement from aliexpress.

I just fitted it this afternoon, and it wasn't too difficult - all working now 🙂

Reason I'm here is while there's an official video for replacing the whole screen unit, I couldn't find one for replacing just the screen itself. So I was flying blind and a bit worried about damaging things as you have to prise the screen off the frame. As mentioned it turned out not to be difficult, but if anybody has a link to a "replacing just the screen" video, it would be good to link it here.

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6 hours ago, andy said:

Hi mbecroft,

I had this problem too: the offer of a replacement was delayed from October - so I ordered the screen replacement from aliexpress.

I just fitted it this afternoon, and it wasn't too difficult - all working now 🙂

Reason I'm here is while there's an official video for replacing the whole screen unit, I couldn't find one for replacing just the screen itself. So I was flying blind and a bit worried about damaging things as you have to prise the screen off the frame. As mentioned it turned out not to be difficult, but if anybody has a link to a "replacing just the screen" video, it would be good to link it here.

...."deglue" display from frame is simple. I have preheater for it , sometime i am too lazy to go to second room where is preheater 🙂Solution is simple - buy zippo lighter fuel, littlebit moisten gap between lcd glass/frame...and then use carefully razor blade and put it between glass and frame - but not cutting! ...thats all. 

 

Edit - razor blade is needed because is thin!!!

Edited by CornholioGSM
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On 12/29/2021 at 12:05 AM, CornholioGSM said:

...."deglue" display from frame is simple. I have preheater for it , sometime i am too lazy to go to second room where is preheater 🙂Solution is simple - buy zippo lighter fuel, littlebit moisten gap between lcd glass/frame...and then use carefully razor blade and put it between glass and frame - but not cutting! ...thats all. 

 

Edit - razor blade is needed because is thin!!!

The replacement screen shipped with a bag of tools, including thin plastic shims that were useful to help prise the screen off.

Unfortunately I just gone and dropped it on a tiled floor and the screen is completely borked now :_(  Not cracked but doesn't display anything, I presume the ribbon cable or connector is broken.

Hey ho - not much I can do about that, I'm a software guy not hardware. Let's see what the official repair process is like, failing that may give up and get a new Pro-1X...

 

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1 hour ago, andy said:

Unfortunately I just gone and dropped it on a tiled floor and the screen is completely borked now :_(  Not cracked but doesn't display anything, I presume the ribbon cable or connector is broken.

Does Pro1 look to be working?

I may try to disassemble it again looking for a released connector.
Basically I am thinking of two connections - one is the connector at the bottom of display assembly which may has came out and there is also a connector of that display cable at the bottom part of the phone but it has a metal part above so maybe it is less likely to come off but maybe it is also a possible thing to release.
(These are snap-in connectors but an impact may get them to release.)

I would also buy a replacement screen anyway as it may happen also the screen may has problems, but I would check the connections of cabling or bring it to a service where someone can do it.

Disassembling the bottom part is also not complicated but you may need a thin tool for opening it.

If you look at here, the first connector I was thinking is this one and the second connector is under the metal part here on the right of the battery.

So I feel there is a chance for a minor problem and a relatively high chance for repairability.
 

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I purchased the panel from the Aliexpress vendor that fxtec support recommended. Installed it a couple of days ago.

I removed existing panel with hot air 160 degrees per this guide:

https://matland.be/pro1disassembly.pdf

I did not use a suction cup but instead a very thin metal wedging tool (similar to razor blade mentioned above). It took a few minutes to remove.

The mistakes I made were about installing the new panel. The original panel had a black plastic over the panel's adhesive - so from looking at that, I did not realise that the entire reverse side of the panel as supplied is adhesive. Rather than try to re-glue around the edges, I used 3M two-sided tape (that I already own, nothing was supplied with panel) at top and bottom, and covered most of the adhesive leaving some exposed to hopefully hold panel well enough (I don't care about water-proofing). But nothing would stick, and I'm not sure what I was thinking at the time, but I stuck the panel on using by its entire adhesive area. Which is fine, but means it is nearly impossible now to remove. Luckily I aligned it well and it's all good - but the 2-sided tape I used top and bottom is not holding (I think I used too-thin tape) so in the end I just put some kapton tape across the bottom on the outside to hold it down. Sounds janky, but the main thing is it works, and screen is perfect and defect-free.

But there is a problem - left and right digitizer margins:

The left and right margins of the panel by about 5mm do not respond to touch. Not a digitizer fault, clearly it is intended behavior. You can drag into the margins, but not initiate a touch in the left/right margins. This is a problem, as some apps have buttons close to the sides. I am  told it is due to different programming from the factory designed for the Elephone which uses same panel. Is there a solution to this?

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So I just searched the forums as I should have in the first place, and it sounds like only solution is to reflash the entire phone. Which would be a huge hassle to do. Has anyone found a better way? I am on LineageOS 18.1.

Can anyone provide the instructions fxtec has allegedly provided to some people? Maybe I can just XXXadbXXX fastboot the special debug OS that has been mentioned, without flashing the phone...

Thanks!!

Edited by mbecroft
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@mbecroft The instructions I suppose you're referring to describe the use of a proprietary not-for-distribution flashing tool specific to the digitizer in our screens. The flashing tool used to work with LOS 17.1 (Android versions up to Android 10), but there's no way to make them work with LOS 18.1. Hardly anything about that tool seems to exist on the net, and the few mentions I found only refer to even older versions than the one we're talking about here.

For the time being, the only solution to the margins problem (for someone not using stock Android) unfortunately seems to be to flash the latest stock ROM (the process automatically resets the margins to what we need on our device) and then re-flash the OS they want to use...

 

Edited by Rob. S.
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Darn, well at least I know now, thanks for that!

I will ask fxtec for the tool, and maybe can reverse-engineer it enough to make it work. It actually would be nice to be able to control the margins - by default, it is a little overzealous in that if you are holding the phone in your hand it's hard not to accidentally be touching a screen edge, which blocks all other touches from working. So a little bit of margin, but not too much, would be good. Probably not possible to reverse-engineer things enough to achieve that level of control, though, without ridiculous effort.

I can't put my finger on it exactly, but it also feels as if the new panel is somehow slightly more responsive than the old one. May be just placebo effect...

Will update thread if I make any kind of breakthrough, otherwise this is the end of the line on this topic from me, for now.

Thanks everyone who has helped out!

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