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Enthusiast
Posts: 1
Registered: ‎04-16-2014
Message 1 of 2 (903 Views)

VPCSA4C5E - Win8.1 Brightness Charm and Fn keys not working

Hi

 

I work for a company and we are having trouble with a couple of VAIO laptops that have been upgraded from 8 to 8.1. I've spent a few hours on one particular laptop, uninstalling drivers, reinstalling, in differing orders etc. I Even spent 3/4 hours letting the sony updater download 3GB of drivers on a bad connection, install them and still come out with no change.

 

Below is a log file generated by the hotkey program located here http://community.sony.com/t5/Windows-8/Windows-8-Upgrade-Troubleshooting-FAQ/td-p/41893

 

This is the one ive been installing/uninstalling drivers, the extension parser seems to be missing but i am certain i had it installed before i let the sony updater program do its thing.

Model Name = VPCSA4C5E
VAIO Control Center Version = 6.0.5.10150
VESStaminaSwitch Version = 6.0.1.08220
VESPerformanceSwitch Version = 6.0.0.08170
Sony Firmware Extension Parser =
Video Card Driver Name = Intel(R) HD Graphics 3000 AMD Radeon 6600M and 6700M Series
Video Card Driver Version = 9.17.10.3347 13.251.0.0

 

 

Second laptop - I personally have not touced this one, and i suspect the drivers have not been installed by its user (Fresh Win 8.1 install after a HDD failure)

Model Name = VPCSE1C5E
VAIO Control Center Version =
VESStaminaSwitch Version =
VESPerformanceSwitch Version =
Sony Firmware Extension Parser =
Video Card Driver Name = Intel(R) HD Graphics 3000 AMD Radeon 6600M and 6700M Series
Video Card Driver Version = 9.17.10.2932 13.251.0.0

 

 

Im at a complete loss to what to do or how to fix it and any help is appreciated

Moderator
Posts: 1,415
Registered: ‎10-10-2013
Message 2 of 2 (852 Views)

Re: VPCSA4C5E - Win8.1 Brightness Charm and Fn keys not working

Hi KieranFJ,

 

You may have missed a step or two with the 8 to 8.1 upgrade. Here's a link you may use as a reference for moving to 8.1 - Windows 8.1 upgrade. Hope it helps.

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