nrfutil not building package properly

[mcau1]

I am trying to create a package file to use with the DFU on my design. I followed the instructions for getting nrfutil latest version built and was able to generate a private key and public key file.

Now I am using this command to build my package:

nrfutil pkg generate --hw-version 1 --sd-req 0x80 --application-version 1 --application DFU_Test3.iHex --key-file private.pem DFU_Test3.zip

it returns "Zip created at DFU_Test3.zip"

Which creates a zip file with two files one is the hex file (but only 1k length, origonal hex file was 523k) and a manifest.json file.

Can you tell me what I am doing wrong here?

Thank you.

[mcau1]

I rebuilt this with the option (under Visual GDB) to program the softdevice separately and it works.

It builds a much smaller hex file which then produces the package file.