How to generate init file(*Dat) for secure DFU OTA update?

[Nilesh Bhavsar]

Hi;

I am trying to secure DFU OTA. For that, i am using SDK12.2.0 and done with example file.

Now how to generate this .dat file itself.

Also explain each parameter of init file and how to set it.

[bjorn-spockeli]

Hi Nilesh,

you can generate firmware images for the Secure Bootloader using our nrfutil tool, which is available here on GitHub.

Install instructions and examples on how to generate the firmware images are given in the READM.md file.

Best regards

Bjørn

[Nilesh Bhavsar]

Hi Sir,

Today, i am trying with the ble_app_blinky_c program in keil which is located into the nRF5_SDK_12.2.0_f012efa\examples\ble_central\experimental\ble_app_blinky_c\pca10028\s130\arm5_no_packs.

Simply, i build the project and using generated hex file create the zip file using "nrfutil pkg generate --debug-mode --application your_application.hex --key-file key.private app_dfu_package.zip"

Now when i am trying to update the firmware, the mobile application shown "DFU is failed" error message.

Please suggest me. thanks