QUESTION:
I have a Sony Vaio duo 11 and the usb
ports are not working. Optical 3 button mouse’s cannot connect nor can my USB
both of which work on other computers. I have absolutely no idea what the problem
is.
Although, I looked into device manager
and found USB root hub xhcl had an exclamation mark next to it. It says
that it cannot load the device driver for this hardware. The driver may be
corrupted or missing. (Code 39). When I try to update the driver for it says
the driver is up to date. Does this have anything to do with it?
I've also tried uninstalling all
the usb extensions and rebooting. It did nothing (All the extensions came back
even xhcl with the exclamation mark).
SOLUTION:
Possibly the driver is corrupted or
the USB devices are busted. Let's isolate the issue. Kindly follow these
steps:
- Power cycle - Remove the battery and all peripherals -> press and hold the power button for 5 seconds OR, if the battery is not removable, remove all peripherals -> look for a battery off button on the bottom of the laptop -> push the button for 5 seconds
- Reset BIOS
- Download the drivers from Sony support page (from where you purchased the unit)
- Run Vaio update and Windows update.
For further assistance regarding your
concern, please contact the Sony offices/Sony representative offices nearest to
your place of residence in Asia Pacific region
Due to proximity, they are in a better
position to respond to your questions or concerns.
http://sonylaptopservice.com/
