Experimental_bootloader_secure_usb example does not work on NRF 52840

[Hayk]

Hello. I would like to run DFU experimental_bootloader_secure_usb example on NRF 52840 but the USB port does not recognize my device. I tried with both 5.0.0-2Alpha and 6.0.0-6Alpha versions of the softdevice. Tried to the softdevice is actually not enabled in the example, tried to enable it, but was not possible. Also tried to not initialize the softdevice, also didn't help.

Every thought could help me. Thank you.

[Sigurd]

Hi,

• Do you have the same problem with the USB examples in the SDK? Could you try the usbd_hid_generic example in SDK 14.1 ?
• Is this a nRF52840-PDK? What version of the nRF52840 PDK are you using? It should be printed below PCA10056 on the sticker on the kit.
• Do you have any custom boards using nRF52840 "engineer samples" ?