Does mcuboot have a mechanisms to update the bootloader itself?

[Diego]

Hello,

Is there a way to configure mcuboot to allow updates to the bootloader itself? That feature is supported in Nordic's bootloader, but I haven't been able to find any info on that on Mcuboot's documentation or nRF Connect SDK.

Thanks,

Diego

[Simon]

It is not possible for the bootloader (MCUboot) to update itself. For the MCUboot to be updateted, you need to add the immutable bootloader to your solution. See https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.8.0/nrf/ug_bootloader_adding.html#adding-an-upgradable-bootloader 

What chip are you using? There are some uncertainties whether it is supported to upgrade mcuboot using the above approach with the nRF52 series. I will look into it and get back to you.

Best regards,

Simon