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August 1st, 2017 06:00
Inspiron 7568, lost touchscreen functionality
Hi everyone, so here is the problem I am having.
I got the Dell Inspiron 7568 FHD laptop so I could use the PN556W pen with it to sketch and draw on it. The pen didn't work when I tried to use it, and before I sent the pen back I was gonna try doing anything I could.
While trying new Chipsets, Drivers, BIOS and Firmware, I installed the latest Touch Firmware (Blackwood_MLK_Wacom) and I noticed the Touch Screen stopped working. I tried different updates and disk cleans/debugging and nothing worked. It still said I had active HID drivers for it but it wouldn't work, and Dell Support App says there isn't anything wrong.
Also, I couldn't system restore due to no restore points.
When I was going through HID, I turned on Hidden Drives and I found two Hidden HID Touch Screen driver with Code 45 on them. I saw an article (can't find it now of course) that said the touch screen could have disconnected internally and I could open up the base and reconnect it.
Can anyone back this up? Does anyone have anything else I can try?
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DELL-Chris M
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August 1st, 2017 08:00
I doubt that the internal cable came loose. Getting to the touch cable means a complete LCD panel disassembly. Did you try deleting those hidden references, then restarting to see what New Hardware Windows found?
Cody Stewart
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August 1st, 2017 09:00
You think If I delete the hidden Code 45 Reff's then it might work after I restart?
DELL-Chris M
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August 1st, 2017 13:00
possibly...
Cody Stewart
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August 1st, 2017 16:00
I tried it out and it did not work. Are there any other suggestions?
Cody Stewart
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August 2nd, 2017 07:00
Would checking the cable be the same process as detailed in this?
downloads.dell.com/.../inspiron-15-7568-laptop_service manual_en-us.pdf
Removing the Display Assembly?
DELL-Chris M
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August 2nd, 2017 07:00
Then you are looking at opening up and checking the cable.Or sending it back to Dell for repair.
DELL-Chris M
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August 3rd, 2017 07:00
That and in other places in the manual.
Cody Stewart
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August 3rd, 2017 08:00
Where about would that be specifically?
Also, would it be worth resetting my computer?
DELL-Chris M
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August 3rd, 2017 09:00
I thought you said earlier that an OS reset was not possible? Based on the pictures, it is a complete LCD teardown =
Cody Stewart
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August 3rd, 2017 09:00
A restore is not doable, since i have no restore points. I am going to retry an OS reset though.
If the reset doesnt work I will take it apart.
Hopefully that will work.
Cody Stewart
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August 4th, 2017 07:00
Update, I did a full reset and the screen still isn't working. Could you send me the full link to the hardware article? The one I have seen doesn't go beyond the LCD removal from the base.
Can I assume it is a hardware issue now?
DELL-Chris M
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August 7th, 2017 06:00
No. All you have access to is the Service Manual. You will need to search for a teardown on youtube.