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by vitaly-electra
28 May 2026 05:34
Forum: Dataman 40Pro
Topic: USB driver does not install on Windows 11
Replies: 4
Views: 30273

Re: USB driver does not install on Windows 11

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 ...

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