Hello, I try to use the mcuboot_smp_ble_simultaneous sample.
It compiles fine and the updates completes successfully in the nRF Connect App on Android.
But the image is not booted on the application core after nrfjprog --reset.

I am also facing some warnings on the application core.

I: Starting bootloader
W: Failed reading sectors; BOOT_MAX_IMG_SECTORS=256 - too small?
W: Cannot upgrade: slots are not compatible
W: Failed reading sectors; BOOT_MAX_IMG_SECTORS=256 - too small?
W: Cannot upgrade: slots are not compatible
I: Bootloader chainload address offset: 0xc000
*** Booting Zephyr OS build v3.2.99-ncs1 ***
AAA this to see it change.

I don't know why the both slots should be incompatible.
Thanks, Alex

I am currently unable to get this example working when CONFIG_NRF53_UPGRADE_NETWORK_CORE=Y. All encrypted bin files that I upload get "sent" to the network core. Only signed files load correctly. Setting CONFIG_NRF53_UPGRADE_NETWORK_CORE=N creates the expected behaviour.

See:
"Migration" pages in https://docs.nordicsemi.com/search?bundle=ncs-latest&q=zcbor_new_decode_state
https://devzone.nordicsemi.com/support-private/support/330856

Need to update all sample that is using this function.

Lots of messages are being dropped when pressing the button.

how can i disable the Mass Storage feature on the device in windows system?

ADMIN@DESKTOP-C9E5DTQ MINGW64 /f/ncs/v1.9.1
$ JLinkExe --help
bash: JLinkExe: command not found

thank you very much

I follow procedures list on https://github.com/hellesvik-nordic/samples_for_nrf_connect_sdk/tree/main/bootloader_samples/nrf5340/mcuboot_smp_ble_simultaneous. But I encounter "Error: This image has already been flashed (has value of the previous image matches current one)".

Thanks for your reply! I try to build the following sample. But it failed to build.

https://github.com/hellesvik-nordic/samples_for_nrf_connect_sdk/tree/main/bootloader_samples/keys_and_signatures/mcuboot_smp_custom_key

The following are log messages of west build.

D:\ncs\v2.4.0\bootloader\mcuboot\samples\zephyr\mcuboot_smp_custom_key>west build -b nrf5340dk_nrf5340_cpuapp
-- west build: generating a build system

...

warning: MCUMGR (defined at subsys/mgmt/mcumgr/Kconfig:5) was assigned the value 'y' but got the
value 'n'. Check these unsatisfied dependencies: NET_BUF (=n), ZCBOR (=n). See
docs.zephyrproject.org/.../kconfig.html and/or look up MCUMGR in the
menuconfig/guiconfig interface. The Application Development Primer, Setting Configuration Values,
and Kconfig - Tips and Best Practices sections of the manual might be helpful too.

D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_custom_key/prj.conf:3: warning: attempt to assign the value 'y' to the undefined symbol MCUMGR_SMP_UART

D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_custom_key/prj.conf:4: warning: attempt to assign the value 'y' to the undefined symbol MCUMGR_CMD_IMG_MGMT
Parsing D:/ncs/v2.4.0/zephyr/Kconfig
Loaded configuration 'D:/ncs/v2.4.0/zephyr/boards/arm/nrf5340dk_nrf5340/nrf5340dk_nrf5340_cpuapp_defconfig'
Merged configuration 'D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_custom_key/prj.conf'

error: Aborting due to Kconfig warnings

Procedures to reproduce this issue are as follows.

1. Unzipping mcuboot_smp_custom_key.zip to D:\ncs\v2.4.0\bootloader\mcuboot\samples\zephyr\ folder.

2. west build -b nrf5340dk_nrf5340_cpuapp

I would like to build https://github.com/hellesvik-nordic/samples_for_nrf_connect_sdk/tree/main/bootloader_samples/nrf5340/mcuboot_smp_ble_simultaneous. But it failed to build with the following messages.

D:\ncs\v2.4.0\bootloader\mcuboot\samples\zephyr\mcuboot_smp_ble_simultaneous>west build -b nrf5340dk_nrf5340_cpuapp
-- west build: generating a build system
Loading Zephyr default modules (Zephyr base).
-- Application: D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_ble_simultaneous
-- CMake version: 3.20.5
-- Using NCS Toolchain 2.4.0 for building. (D:/ncs/toolchains/31f4403e35/cmake)
-- Found Python3: D:/ncs/toolchains/31f4403e35/opt/bin/python.exe (found suitable exact version "3.8.2") found components: Interpreter
-- Cache files will be written to: D:/ncs/v2.4.0/zephyr/.cache
-- Zephyr version: 3.3.99 (D:/ncs/v2.4.0/zephyr)
-- Found west (found suitable version "1.0.0", minimum required is "0.7.1")
-- Board: nrf5340dk_nrf5340_cpuapp
-- Found host-tools: zephyr 0.16.0 (D:/ncs/toolchains/31f4403e35/opt/zephyr-sdk)
-- Found toolchain: zephyr 0.16.0 (D:/ncs/toolchains/31f4403e35/opt/zephyr-sdk)
-- Found Dtc: D:/ncs/toolchains/31f4403e35/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6")
-- Found BOARD.dts: D:/ncs/v2.4.0/zephyr/boards/arm/nrf5340dk_nrf5340/nrf5340dk_nrf5340_cpuapp.dts
-- Found devicetree overlay: D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_ble_simultaneous/app.overlay
-- Generated zephyr.dts: D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_ble_simultaneous/build/zephyr/zephyr.dts
-- Generated devicetree_generated.h: D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_ble_simultaneous/build/zephyr/include/generated/devicetree_generated.h
-- Including generated dts.cmake file: D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_ble_simultaneous/build/zephyr/dts.cmake

D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_ble_simultaneous/prj.conf:6: warning: attempt to assign the value 'y' to the undefined symbol MCUMGR_SMP_UART

D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_ble_simultaneous/prj.conf:7: warning: attempt to assign the value 'y' to the undefined symbol MCUMGR_CMD_IMG_MGMT
Parsing D:/ncs/v2.4.0/zephyr/Kconfig
Loaded configuration 'D:/ncs/v2.4.0/zephyr/boards/arm/nrf5340dk_nrf5340/nrf5340dk_nrf5340_cpuapp_defconfig'
Merged configuration 'D:/ncs/v2.4.0/bootloader/mcuboot/samples/zephyr/mcuboot_smp_ble_simultaneous/prj.conf'

error: Aborting due to Kconfig warnings

CMake Error at D:/ncs/v2.4.0/zephyr/cmake/modules/kconfig.cmake:339 (message):
command failed with return code: 1
Call Stack (most recent call first):
D:/ncs/v2.4.0/nrf/cmake/modules/kconfig.cmake:29 (include)
D:/ncs/v2.4.0/zephyr/cmake/modules/zephyr_default.cmake:115 (include)
D:/ncs/v2.4.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
D:/ncs/v2.4.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
CMakeLists.txt:5 (find_package)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: 'D:\ncs\toolchains\31f4403e35\opt\bin\cmake.EXE' '-DWEST_PYTHON=D:\ncs\toolchains\31f f4403e35\opt\bin\python.exe' '-BD:\ncs\v2.4.0\bootloader\mcuboot\samples\zephyr\mcuboot_smp_ble_simultaneous\build' -GNinja -DBOARD=nrf5340dk_nrf5340_cpuapp '-SD:\ncs\v2.4.0\bootloader\mcuboot\samples\zephyr\mcuboot_smp_ble_simultaneous'

Procedures to reproduce this issue are as follows.

1. Unzipping mcuboot_smp_ble_simultaneous.zip to D:\ncs\v2.4.0\bootloader\mcuboot\samples\zephyr\ folder.

2. cd D:\ncs\v2.4.0\bootloader\mcuboot\samples\zephyr\mcuboot_smp_ble_simultaneous

3. west build -b nrf5340dk_nrf5340_cpuapp

I get warning:
C:/ncs_proj/samples_for_nrf_connect_sdk-main/bootloader_samples/keys_and_signatures/mcuboot_smp_custom_key/build/mcuboot/zephyr/misc/generated/extra_kconfig_options.conf:2: warning: malformed string literal in assignment to BOOT_SIGNATURE_KEY_FILE (defined at C:/ncs/v2.2.0/nrf/modules/mcuboot/boot/zephyr/Kconfig:58, C:/ncs/v2.2.0/bootloader/mcuboot/boot/zephyr/Kconfig:131, C:/ncs/v2.2.0/nrf/modules/mcuboot/Kconfig:3). Assignment ignored.

error: Aborting due to Kconfig warnings