08-04-2016 09:31 AM
I just bought Lenovo YOGA HOME 500 for a day, all working fine (devices all connected)
suddenly Mouse & Keyboard Portable not working anymore (not connected to main)
I found that is Error Message at Setting Devices =
"Unkown USB Device (Device Descriptor Requested Failed)
I already try replace the AAA battery inside the mouse & keyboard
and looking for new/updated driver ... can't find it
I can't find the "dongle" for these devices because in manual said "already paired inside the main unit"
and from beginning (1 day) - No need dongle for using Keyboard & Mouse
How to fix this problem?
Could you provide the proper driver for these devices?
09-13-2016 12:28 AM
I have exactly the same problem ...
Keyboard and mouse have work for month, but since the last Windows Update (i think), they don't work and have the same message in device settings "Unkown USB Device (Device Descriptor Requested Failed)"
10-21-2016 10:39 AM
04-13-2017 08:28 AM
my solution was
- in device manager
- select the error device
- right-click uninstall
do not refresh the devices
- power down the Yoga Home
- power up the Yoga Home (so this is not restart!)
then lots of times, this will work.
If this doesn't work, perform the above up to power down the Yoga Home.
get a USB keyboard and connect to the Yoga Home
- while starting the Yoga Home, press F1 to entery BIOS mode
- change something in the BIOS mode (something that won't break your Yoga Home)
- save the new BIOS setting with a boot
This is needed sometimes, at least for me, every once in 5 keyboard errors.
04-13-2017 09:46 AM