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Microsoft Windows 10 (64-bit)

We had four machines doing this today and at first thought it might be a driver issue.

 

The Display was rotated 90 degrees which made it hard to check settings, if you turned the PC on its side the display would rotate another 90 degrees, you could enable rotation lock and pick landscape, but the keyboard and touchpad still did not work, caps lock would not toggle on/off and none of the keys worked.

 

The Keyboard, Touchpad and Display all worked in the BIOS and Diagnostics.

 

After loading the factory image on one and still having the same issue we changed course and started treating this as a hardware failure.

 

When powering off the device to change an internal component  or reseat a cable on this model you need to disconnect the battery, press and hold the power button 7 seconds before disconnecting cables.  

 

You can disconnect the keyboard, touchpad, and Keyboard Camera with the battery connected.

 

The first thing I tried was powering off the device, opening the case, disconnecting the battery, press and hold the power button 7 seconds, and then disconnect the display cables, (One on each corner of the motherboard).  Then powered on the device with the display disconnected and tried the Caps Lock key, the light toggled on/off, this light would not toggle in earlier testing.

 

Fortunately we had another PC of the same model in house, but with a different issue, I opened it and following the same power off process as earlier disconnected the display, and then connected that display to the failing device, (always following the power off process as documented).

 

With the display from a working unit connected the device worked!  It is in warranty so a replacement part has been requested, (I work for an authorized service provider).

 

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