http://www.techkings.org/downloads.php?do=cat&id=12
Right click My Computer icon on desktop to find your device manager.
Drop the + sign (plus sign) on Ports (Com & LPT) should tell u what port you are connected to or which one you need to connect to.
Shout if you're still having issues
does your pc have a serial port the same as the kv box,then all you should need is a null modem cable.
Sorry did you not find the device manager page or can you not see the Ports (Com & LPT) parts??
Also are you connecting a usb adapter to your null modem cable then to your box?
The connection needs to be firmly done as sometimes the laptop does not recognise it; may be an idea to disconnect and reconnect a few times.
http://www.prolific.com.tw/US/supportDownload.aspx?FileType=56&FileID=133&pcid=85&Page=0
Meron
Plug in your USB convertor with the null modem lead attatched into a USB port
on your computer.
go to Start - Devices and printers.
If there is no obvious device listed you need to install a driver for your USB lead
try the prolific driver
PL2303_Prolific_DriverInstaller_v1.6.0.zip
HTML:http://www.prolific.com.tw/US/supportDownload.aspx?FileType=56&FileID=133&pcid=85&Page=0
After installing the driver you should see
Prolific USB to Serial Comm Port (Com "number") in the devices and printers.
Right click on the device - Properties
Hardware - Properties
Port Settings - Change bits per second to 115200
When using the loader program to transfere the BIN file make
sure the Com Port "Number" selected in the loader matches the
one the USB is using on your computer.
Good luck :)