Fujitsu Microelectronics America, Inc.
5
How to Install/Update USB Driver
5. Delete the following files.
\Windir\system32\drivers\windrvr6.sys
\Windir\inf\SiUSBd_wdrv.inf
\Windir\inf\SiUSBd_wdrv.pnf
\Windir\inf\windrvr6.inf
\Windir\inf\windrvr6.pnf
Windir is a directory path defined in the system environment
variable of Windows system.
Common USB Driver Errors and
Possible Solutions
• If the USB driver is not installed properly, the Softune
Workbench will show an error as “
Invalid communication
”
when trying to connect with the Emulator system. In this case,
it is required to reconfirm the driver installation and version.
If the problem doesn’t solve by reinstallation, then it is required
to roll back to previous driver.
• In some systems, the USB driver installation will pop up even
though the driver has been already installed before. To avoid the
reinstallation again, try power ON/OFF sequence or switch the
USB port on PC.
If the above problem still persists then contact Fujitsu Support,
Summary of Contents for MB2147-01
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