HM-USB-ISO User Manual
MAN-1008 19/7/2012 v2 Designed and Produced under Page 5 of 8
ISO 9001:2008 Certification
e) If the “USB Serial Converter” driver installed correctly you should see an entry called “USB Serial
Converter”.
f) Expand “Ports (COM & LPT)”
g) If the “USB Serial Port” driver installed correctly you should see a port called “USB Serial Port (COMX)”
(where X is the assigned COM port number.
If the drivers did not install correctly it will have a red cross in the symbol and the device will not be
listed under “Ports (COM & LPT) but will instead be listed under “Other devices” as “USB Serial Port”.
2) Correcting basic installation problems:
Note: Two drivers are installed when HM-USB-ISO is properly installed, the first is a “USB Serial
Converter” driver, the second is a “USB Serial Port” driver. We must remove both drivers (if both
installed) and then re-install them.
a) Connect HM-USB-ISO to a USB port.
b) Go to “Device Manager” and make sure under the “View” menu of “Device Manager” you have
selected “Devices by Type”.
c) Expand “Ports (COM & LPT)”
d) Right click on any entries called “USB Serial Converter” and select “Uninstall”.
e) Expand the section “Universal Serial Bus Controllers”.
f) Depending on how far installation got before it encountered problems you may see a device called
“USB Serial Converter” or “USB High Speed Serial Converter” or “USB Serial port”. Right click on any
matching entries and select “Uninstall”.
g) If it exists, expand “Other devices”
h) Right click on any entries called “USB Serial Port” and select “Uninstall”.
i) Disconnect HM-USB-ISO
j) Restart/Reboot your PC
k) Follow the “Installation Instructions” in this user guide.
3) Correcting hard to resolve installation problems:
Note: Two drivers are installed when HM-USB-ISO is properly installed, the first is a “USB Serial
Converter” driver, the second is a “USB Serial Port” driver. In this section we will manually force the
loading of the correct drivers. You will need from our website the latest driver file, you should save this
file on your desktop. If the file is a zip file please extract the contents from the zip file to your desktop.
a) Reboot your PC
b) Connect HM-USB-ISO to a USB port.
c) Go to “Device Manager” and make sure under the “View” menu of “Device Manager” you have
selected “Devices by Type”.
d) Expand the section “Universal Serial Bus Controllers”.
e) Right click on “USB Serial Converter” and select “Update Driver”, a new window will open titled
“Hardware Update Wizard”.
f) Select the bullet item “Install from list or a specific location (Advanced)”, click the “Next” button
g) Select the bullet item “Don’t search. I will choose the driver to install”, click the “Next” button
h) Click on “Have Disk”, then click “Browse”.
i) Browse to the driver folder on your desktop and select the file “ftdibus.inf”, click “Open” then click
“OK”.
