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08-01-2020

DE

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Yoga 720-12ikb touch screen broken after KB4497165 + KB4562900

2020-08-01, 2:27 AM

after update of windows 10 (1903) with KB4497165 and KB4562900 the touch screen of my Yoga 720-12ikb didn't react on finger touch anymore. (about pen touch I can not tell).

after deinstallation of these updates and power off - waiting a while - power on, I was able to calibrate the finger touch. now it works.

 

I delayed the next update as long as possible and hope that the issue will be solved by the time.

 

 

 

update: the next day when I powered on my Yoga, the sesitivity for finger touch is broken again !!!

there was no new software installation since yesterday. 

I tried a lot of steps, without success until now:

 

  • deactivate and activate the driver
  • deinstall the device and get it reinstalled by reboot
  • power off and wait some time until the next power on

 

am really unhappy and have no idea what to try next.

 

has anyone an advice?

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1 Posts

08-01-2020

DE

5 Signins

40 Page Views

  • Posts: 1
  • Registered: ‎08-01-2020
  • Location: DE
  • Views: 40
  • Message 2 of 2

Re:Yoga 720-12ikb touch screen broken after KB4497165 + KB4562900

2020-08-04, 16:42 PM

that is me again with a new update.

 

the other day after trying numerous combinations of second screen plugged or unplugged, tablet mode or destop mode, power off and on or restart,

and everytime calibration not sensitive

I happened to click the calibration panel 

  • first with my finger - no reaction, 
  • then with my ballpen (not the touch pen! so I didn't expect any response)
  • then with my finger again 

==> calibration worked !!!

 

that was two days ago and since then my finger touch is still working.

 

 

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