USB driver does not install on Windows 11

[jbyrne_ffe]

I am trying to use a Dataman-40Pro on a new computer with Windows 11. I downloaded the latest software (4.00) and installed it, but it cannot connect to the programmer. When I checked the Device Manager I could see it was showing up as an Unknown Device, and when I tried to update the driver, Windows gave me the following error:

"Windows found drivers for your device but encountered an error while attempting to install them.

DATAMAN-40PRO, Universal 40-pindrive Programmer

The install class is not present or is invalid."

How can I resolve this problem?

[Dataman (Neil Parker)]

Hello jbyrne_ffe,

We are aware of a problem when software v4.00 is installed on a new system, the temporary solution is to install v3.99 and then install v4.00.

I have made Pg4uw software v3.99 available via our dropbox account here:
https://www.dropbox.com/scl/fi/lthsjf65 ... doxi5&dl=0

We think we have found the reason behind this situation and the problem will be fixed soon.

Apologies for the inconvenience.

[jbyrne_ffe]

After installing the v3.99 software it did not recognise the programmer initially, but I went to Device Manager, chose the "Unknown Device" and pressed the "Update Driver" button, and once I had done that it appeared correctly. I have now updated to v4.00 and confirmed that I am able to program a flash chip successfully.

Thanks for the prompt help.

[vitaly-electra]

Hello Neil,

I have exactly the same problem with my Dataman-40Pro on Windows 11.

The programmer is detected by USB and appears in Device Manager as:
“DATAMAN-40PRO, Universal 40-pindrive Programmer”

However, PG4UW cannot establish connection and always shows:
“Establishing connection failed (EC: E1)”

I already tried:

* reinstalling Windows 11
* reinstalling PG4UW v4.12
* different USB ports
* running as Administrator
* disabling USB power saving

I found this forum topic and saw that installing v3.99 first may solve the problem, but unfortunately the Dropbox link is no longer available.

Could someone please provide:

* an updated download link for PG4UW v3.99
or
* another workaround for this Windows 11 USB driver issue?

Thank you very much.

Additional information:

The programmer is visible in Device Manager with VID_1393 & PID_0579, so Windows detects the hardware correctly, but communication with the programmer firmware fails and the software switches to Demo mode.

[Dataman (Neil Parker)]

Hello vitaly-electra,

I have updated the Dropbox link above for v3.99.

Please let me know if the situation does not improve.