ota: how to update bootloader

[gorazd]

Hi,

in nrf connect app i see it is possible to update bootloader over ota. How do i generate ota file properly? I tried generating zip and hex but the app says "no matching files"

nrfutil.exe dfu genpkg fw_bootloader.hex --bootloader 001B_SDK11\examples\dfu\bootloader\pca10040\dual_bank_ble_s132\arm5_no_packs\_build\nrf52832_xxaa_s132.hex --application-version 0xffffffff --dev-revision 0xffff --dev-type 0xffff --sd-req 0xfffe

[Rishi]

Extract the contents of zip file to obtain .bin and *.bat * files. Try updating using these files.

[Rishi]

Yes, you are right. I repeated the test case and softdevice and bootloader cannot be updated. I would recommend you try creating a single zip file that contains both dfu and application.

Moreover, why would you like to have bootloader OTA. Usually it is the application that is supposed to be updated. You can always set the device in bootloader mode manually and update the application.