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7 Posts

04-15-2019

Bahrain

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  • Message 21 of 26

Re: [solved] Lenovo Yoga 720 touch screen, pen issues (wacom device)

2019-10-25, 6:49 AM

---------------------------------------added--------------------------------

 

hello, I opened this thread 6 month ago, and this touch malfunction happened again 1~2 month ago.

I changed to new display but it doesn't work. so, I ordered new edp cable and it is working now.

I bought it from aliexpress.

https://www.aliexpress.com/item/32840901256.html?spm=a2g0s.9042311.0.0.541b4c4d82cek6

my laptop is 15ikb 4k model. please be careful to find to 13ikb, 15ikb, FHD, UHD model.

 

my history

windows update -> touch broken -> try to fix it(including window re-install), nothing works -> bios roll back make touchscreen works -> after several month, touch broken again(I don't know window update is done) -> chage new display($160 UHD 15"model) doesn't work -> new edp cable ($8) work!

 

--> if you change edp or display, you have to delete and re-install driver at device manager. you may see like "no HID Compliant code 10 error".

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1 Posts

10-26-2019

United States of America

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  • Message 22 of 26

Re: [solved] Lenovo Yoga 720 touch screen, pen issues (wacom device)

2019-10-26, 19:06 PM

I suspect I have this exact problem (2x).  Mine was replaced in warranty then broke again weeks outside of the expiration.  So now I will be on my second cable replacement... Does it apear to be a design flaw to you?  Rather than replace the cable every four months maybe I will live with the design flaw and no camera and touch screen.  How is your repair holding up?  Trying to decide if it is worth the time and effort to repair this myself.

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7 Posts

04-15-2019

Bahrain

23 Signins

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  • Posts: 7
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  • Message 23 of 26

Re: [solved] Lenovo Yoga 720 touch screen, pen issues (wacom device)

2019-10-28, 1:05 AM
I think it is design deficiency that EDP cable connected too tightly. So I skip one cable holder (there are three holder(maybe two) near connector) and it looks good now. I will post here if I get same touch screen issues
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1 Posts

11-28-2019

United States of America

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  • Message 24 of 26

Re: [solved] Lenovo Yoga 720 touch screen, pen issues (wacom device)

2019-11-28, 5:23 AM

I'm also trying to replace the EDP cable in my yoga laptop. I've just got a question about the replacement process: did you need to completely remove the motherboard to thread the cable through the hinges?

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12 Posts

05-15-2018

United States of America

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  • Message 25 of 26

Re:[solved] Lenovo Yoga 720 touch screen, pen issues (wacom device)

2020-07-19, 0:19 AM

While your results went well, my 720-12ikb just needed to change the enable intel SGX BIOS option to "software controlled". 

 

Hope this helps

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4 Posts

03-15-2019

United Kingdom of Great Britain and Northern Ireland

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  • Message 26 of 26

Re:[solved] Lenovo Yoga 720 touch screen, pen issues (wacom device)

2020-07-20, 12:34 PM
Just to confirm, changing this BIOS setting got your touch screen working again?
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