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Modifying a signed driver INF file will cause the driver signature in the catalog file to be invalid.
Hence, the driver no longer has a valid signature to be installed in Windows.
The unsigned driver can still be installed by putting the PC into test mode or disabling the driver signature enforcement. But, this is recommended only during the product development or testing phase.
Please contact the product manufacturers for the proper driver as using the cyusb3 driver may not be useful for normal operation of the product even if the device is successfully bound to the device.
thank you very much for your fast and helpfull answer. Unfortunately, the Company went out of business in 2015, so there is no support from this side. I will try and find out how to deactivate the signing of the .inf and how to force into testmode.
with the help from you, I could manage to get it working in the Testmode. Superb!!!!!
No it is only a matter of time, that I get it to work in the "normal" Windows mode.
once more, thank you very much.