RE: DFU request 4 failed with error: 0xB

Stefano1984 — Tue, 11 Jan 2022 15:01:08 GMT

Thank you very much Vidar.
I will try your suggestion as soon as possible.

Best regards.

RE: DFU request 4 failed with error: 0xB

Vidar Berg — Tue, 04 Jan 2022 11:09:47 GMT

Hi,

The pre-validation step is failing due to the HW version in your init command not matching the HW version expected by the bootloader. The HW version is set to "52" by default in the bootloader's sdk_config. So you can either change the NRF_DFU_HW_VERSION setting to '1', or you can use the default version when generating your DFU package.

e.g.

python nordicsemi/__main__.py pkg generate --application hand.hex hand.zip --hw-version 52 --sd-req 0x100 --application-version 1 --key-file priv.pem

Best regards,

Vidar