connecting problem of v4

Installing the software and connecting the hardware with usb-to-use cable to computer, it still cannot download programs. There are nothing in the options box to select.

[ATTACH]9356[/ATTACH]

this is device manager

[ATTACH]9357[/ATTACH]

The hardware wouldn’t show like [com and a number]
How can I deal with this problem?
Thank you.
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urnotxintianjiang,

Yes, please use the VEXnet Upgrade Utility to establish communication between PC & Microcotroller (screenshot attach).

Also can you elaborate on your PC specifications?
Windows 7 or 8? 32-bit or 64-bit?

-Eli
Doc1.pdf (166 KB)

I am using windows7 and 64-bit.

It sounds like the drivers for the programming cable are not installed. Try reinstalling the drivers from the easyC start menu drivers folder. https://vexforum.com/attachment.php?attachmentid=9595&stc=1&d=1443121452

If the problem persists please contact our support department at 800-221-2763
easyc drivers.JPG