My system is
- Zephyr OS build v2.3.0-rc1-ncs1
- nRF-Connect-SDK v1.2.0
Moving some config switches allowed me to
b) Build and program MyApp (or smp_srv) in slot-0 (using nrjprog over SWD)
c) Build and DFU upload MyApp in slot-1 (using mcumgr over UART)
d) Confirm slot-1 image (using mcumgr over UART)