Thread DFU client problem

[marmio]

Hi,

I'm following instructions for testing Thread Secure DFU example and I can't get this working. I think there's a problem with client application. LED3 starts being lit after bootloader flash (4.c) and after DFU client flash (4.d) it stays being lit, LED1 is still off. I followed all the instructions with no errors. Thread SDK 0.10.0.

[Jørgen Holmefjord]

Great that you got it working! Please see the note in SDK for Thread v0.11.0 documentation:

"Thread Secure DFU example behavior was modified in Thread SDK v0.11.0. The current example is not compatible with older versions of nrfutil. Therefore, you must use nrfutil v3.4.0 with the current version of this example. Older versions of Thread Secure DFU (Thread SDK 0.10.0 and older) are compatible with nrfutil v3.2.0."

I have not tested or confirmed this with the developers, but this might also be true for the generation of keys/bootloader settings, meaning you would need to downgrade to nrfutil 3.2.0 to get DFU testing procedure working with Thread SDK v0.10.0