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@John Veness If you press with force onto the middle of your display, it will bend slightly. That's very noticeable with replacement displays since they have a sticky back and you can hear the glue sticking to something when being pressed. The design flaw of the Pro1 probably is that there's a gap between display and display cover (the part you screw onto the sliding mechanism) and therefore you have more wear on the display. If I don't forget, I'll try to measure how much air is between display and the plastic part, maybe we can stick something in between, idealy some plastic glued on, s

That is definitively can be the reason of the fault. Anyway, once I have boght an Elephone U Pro display together with its original frame by mistake. I could separate the screen which worked after it, bt it was not the easiest thing to remain intact - I still have the frame if you may like to see a photo of it. It has a big metal part behind the screen, where the screen was glued using original sticky part... so that frame is metal as opposite to Pro1's frame and it does not allow movement.

Thanks. It surprises me that they fail in exactly the same position - the horizontal line approximately one third up from the bottom, when held in portrait.

Small update and good news!: fortunately it doesn't seem to be /persist related, because I reinstalled LineageOS 20, stock Android 2.1.12, 2.1.15 and 2.1.17 beta, and there everything works, except LineageOS 20 latest build (20230622?) where there are errors with fingerprint. DivestOS is based on LineageOS, and it was also latest build. So this just seems to be LineageOS-related and my sensors keep working. That's why I reported this on the official XDA forum thread for Pro1x LineageOS, so if anyone is interested you can follow it there: https://forum.xda-developers.com/t/official-li

The producer of the displays. https://www.boe.com/en/

@VaZso I was thinking about Epoxy as well but the higher the viscosity, the worse it will get into small gaps. You'll have to be careful with superglue but I expect better results if I pour superglue into the gaps to prevent any kind of movement. I just hope it doesn't get into the corners of the display itself. @Hook I open the display very softly as well, so that's not the root of the problem. In my case, it's probably related to pressure in the pockets of my trousers. The display is too flexible for tight pockets. And since the phone is so big, every jeans' pocket is tight.

My plan is the next time I will have a defective screen, I will try to apply some glue under that ribbon cable. (That was also my plan before my previous replacement but I wanted to do it quickly and weekend was in the corner, so I forgot to do it...) However, my current screen is the one and only I have ordered from Aliexpress which has no defects at all of the screen, including screen corners....... However, I am planning to do it using a two-component glue instead of a superglue (cyanoacrylate) because the first one is easier to handle and harder to misplace while cyanoacrylate

hey have you seen that in the Beta folder there is a 2.1.7 build put there on June 15th? Oh, this build has "20230417" in the filename so I don't know if it is something new.

The signals tab on the free version of LTE Discovery will show you what band you are on. Most of the time I am on Band 4, but lately have been switching sometimes to B2. Both are high frequency bands and work fine for LTE. This does not require root or paid version.