window7 unable to recognize usb cdc driver.

[William.wei]

hi Support team,

      I have one problem with window7 system both 32 bit and 64 bit, that the usb cdc driver can not be verified by windows, that software signature is not right or maybe damaged;

     Neither nrfconnect_driver_installer in "https://github.com/NordicSemiconductor/pc-nrfconnect-launcher/tree/master/build/drivers/dfu_trigger_and_cdc_acm" nor driver in example\usb_drivers works 

      and I have tried all those method by devzone gave, None of them works.

     https://devzone.nordicsemi.com/f/nordic-q-a/38191/nrf52840dk-usb-cdc-driver-error/150142#150142;

     https://devzone.nordicsemi.com/f/nordic-q-a/18592/is-there-a-windows-driver-for-the-nrf52840-usb-cdc-acm/71738#71738;

    

     so is there any solutions for this problem?

     Thanks in advance!

     

[Edvin]

Hello,

Did you try to install the drivers manually? You can find them here:
https://github.com/NordicSemiconductor/pc-nrfconnect-launcher/tree/master/build/drivers/dfu_trigger_and_cdc_acm

Best regards,

Edvin

[William.wei]

Yes, i did this, but still can't solve this problem