I'm having the same issue FW update (Version 1033) gave error "An unexpected error occurred" 'please unplug wait 5 sec's plug back in and try again', the camera does not work on any other systems, and when I attempted to reapply the firmware it loops.
Asking to unplug the camera for 5 seconds, plug it back in, Do not unplug the webcam while it is being updated, and back to the unplug for 5 seconds, ad nauseam. Is my webcam bricked by a firmware update?
No recent changes, security software is "MS Security Essentials", Windows 7 64.
Also, attempt on another computer was Windows 7 32, fresh install - updates only, no security software.
Attempted complete re-install on both systems - even going so far as to remove the driver "set DEVMGR_SHOW_NONPRESENT_DEVICES=1" style, and of course none of the aforementioned methods were fruitful either.
Thanks ahead of time for any responses.