User’s Manual 8-19
Troubleshooting
USB device
In addition to the information in this section, please also refer to the 
documentation supplied with your USB device.
USB Sleep and Charge function
For more information and settings, please refer to the Using the TOSHIBA 
USB Sleep and Charge Utility section in Chapter 4, Operating Basics.
Problem Procedure
USB device does not 
work
Remove the USB device from the computer and 
then reconnect it to a free port it in order to 
ensure it is firmly attached.
Ensure that any required USB device drivers are 
properly installed - to achieve this you should 
refer to both the device documentation and the 
operating system documentation.
If you are using an operating system that does 
not support USB, you are still able to use a USB 
mouse and/or USB keyboard by setting the USB 
KB/Mouse Legacy Emulation option within the 
TOSHIBA HW Setup utility to Enabled.
If you are still unable to resolve the problem, 
contact your reseller, dealer or service provider.
Problem Procedure
I cannot use the "USB 
Sleep and Charge 
function".
USB Sleep and Charge function may be 
disabled.
Select the "Enable USB Sleep and Charge" 
check box in the TOSHIBA Sleep and Charge 
utility to enable this function.
When there is a current overflow of the external 
device connected to the compatible port, USB 
bus power (DC5V) supply may be stopped for 
safety reasons. When this happens, disconnect 
an external device if some external devices are 
connected. After that, turn the power of the 
computer ON/OFF to restore the function. If this 
function can not be still used even if only one 
external device is connected, stop using the 
external device because its current is over the 
acceptable value of this computer.