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Flex 20: Sensor Collection dll won't load after Windows 8.1 update


After updating to Windows 8.1, there is an error with the accelerometer and the HID Sensor Collection dll won't load.


The Lenovo Windows 8.1 Update Guide says that this is a known problem, and to get a firmware update from the download centre: (http://download.lenovo.com/lenovo/content/windows8-1/upgrade/ideacentre/index_en.html)


I have tried multiple searches but I cannot find the firmware update, can you provide a download link.


  1. Go to Lenovo support site and at Quick Path key in "Flex 20" 
  2. Click on Drivers and Software
  3. Look for Sensor firmware under "Others" category 
  4. The sensor firmware update download will show just like this page Sensor Firmware

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