Hondata

Hi all I have an issue with my KPro V4. I key on ignition and green light illuminates and stays on, ECU receives power and I can connect to it through the Hondata app through bluetooth. However after trying 2 laptops and 3 different cables the issue still persists where the computer doesn’t seem to be even recognizing that a usb device is being plugged in (KPro). Nothing under Device Manager and even after installing KManager and manually installing drivers, everytime I open KManager it says USB Drivers not installed Click Here, gives an error that “USB Drivers couldn’t be installed (Error:)”. I run a USB test and it fails saying no device was found. When I plug a USB into the kpro with ignition off the green light turns on for maybe 2 seconds then goes off as if it’s detecting a connection but it just doesn’t seem to be communicating at all. I removed the board and inspected everything and there’s no signs of burnt components, USB port seems to be soldered and should be working. I am stumped as to what to try next?

- 1988 Honda Civic with K20A2
- 42271? I think that is serial number
- V4.6.1.0
- 37820-PNF-A03 2091-307499 0C07
- V4.6.1.0

Post a picture of the inside of the USB port.

@

Spunkster wrote: Tue Jun 02, 2026 3:35 pm Post a picture of the inside of the USB port.

Send an email to support<at> hondata.com with the following and I will issue an RMA and give you further
instructions:

Name:
Address:
Phone:
Email:
Serial#:
Description of problem:

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