Cannot run a precompiled example hex file

[junma]

Hi all,
I have one PCA10040 board, and want to start to download and run some examples while reading the on-line documentations.
In section "Running precompiled examples ", I see the description of copy and drag an existing hex file to the standard USB drive. I've tried several times to copy and drag hex files to the USB drive, however, each time after I dragged to the drive, seems the USB drive will reset and delete my dragged hex files. Attached is the capture of the USB drive.

Is there any procedures that I missed? Hope someone can help me about this issue. Thank you in advance!

Best regards.
junma

[Scott]

I am suffering the same miserable out-of-the-box experience here with 2 brand new nrf52-dk boards: PCA10040 V1.1.1 2016 37 682770908 & 682488524

Please help me at least get something that should be so basic working, as this is only the tip of the iceberg (attempting to download and debug from the example IAR projects doesn't work either, but that is of course a separate thread).

Note that the JLINK removable drive enumerates, I drag and drop a sample .hex, progress show incrementing to 100%, drive momentarily disappears and then reappears, but nothing - no BLE advertisements, no LEDs, etc.

Plugging in the dev board enumerates this COM port on Windows10 Pro: JLink CDC UART Port