Acer Aspire S7-392 Screen Flickering

[Irakli_]

My laptop's screens started flickering after I had the keyboard changed, it's been like that ever since for maybe 4-5 months. Sometimes screen works flawlessly, sometimes it's unbearable to watch. Tried to open it up myself, checked the cable and it seems to work, I wiggled it, bent in, pushed it but screen was working perfectly regardless. I put the bottom cover back on when screen started flickering again. If I put the cover from left to right everything works until it's fully covered, so the problem is on the right side of the laptop as shown in this video we took. I have no idea what the problem may be.

[video="https/www.youtube.com/watch?v=cqgT7x2TJfc"][/video]

Acer Aspire S7-392-9439 13.3-inch WQHD Touchscreen Ultrabook,
i7-4500U, 8GB RAM, 256SSD.
Windows 10 Home 64bit & Fedora 24 dual boot. (doesn't matter but still).

 

[webworkings]

You may want to open it up (if you feel comfortable doing so) and check the ribbon cable that connects the display to the laptop. Make sure it isn't pinched, bent, torn, loos, etc. Any of these can cause the screen to act up.

 

[Irakli_]

You may want to open it up (if you feel comfortable doing so) and check the ribbon cable that connects the display to the laptop. Make sure it isn't pinched, bent, torn, loos, etc. Any of these can cause the screen to act up.

Yeah I've checked that already, that doesn't seem to be a problem. I wiggled the cable when it was on that didn't affect anything whatsoever, it starts flickering only when the back cover is on, which is really strange and I can't figure out what the problem might be.

 

[webworkings]

I agree, very strange. Obviously it has to be a connection issue, but what connection. Are there any other loose or damaged cables? Also, you may want to check the Inverter and the backlight and make sure neither of those is the cause.

 

[Irakli_]

I agree, very strange. Obviously it has to be a connection issue, but what connection. Are there any other loose or damaged cables? Also, you may want to check the Inverter and the backlight and make sure neither of those is the cause.

As far as I know there are no loose or damaged cables, I know for sure that display cable is working well, as I've said, I wiggled it, pinched it and whatnot, what other cables should I check?

.

Only other visible cable is for display touch sensor and it's flickering even when that's unplugged.





I have no idea what those are or how to check them, can you tell me how to do it?

 

[webworkings]

Here are a couple of videos to check out that may help you with locating and testing. I couldn't find one on your exact model, but the locations are usually the same, or close, on the same brand.

https/youtu.be/ZTESO1jiYCM --- https/www.youtube.com/watch?v=sj1deIj5lpc