[NCS2.7.0]can't FOTA updates with nrf5340 DK

Question

I am running nrf5340_audio_applications on the nRF5340 Audio DK. Follow the requirements, i add an external flash shield. I've only changed

the configuration of flash and close SB_CONFIG_SECURE_BOOT_NETCORE, when i ran it on nRF5340 Audio DK, i got error message:

I don't know what is the cause of this problem.

sysbuild_fota.conf

#
# Copyright (c) 2024 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#

# Enable bootloaders for both cores
SB_CONFIG_BOOTLOADER_MCUBOOT=y
SB_CONFIG_SECURE_BOOT_NETCORE=n
SB_CONFIG_NETCORE_APP_UPDATE=y

# Settings required for external flash to be used for DFU
SB_CONFIG_PM_EXTERNAL_FLASH_MCUBOOT_SECONDARY=y
SB_CONFIG_PM_OVERRIDE_EXTERNAL_DRIVER_CHECK=y
SB_CONFIG_MCUBOOT_MODE_OVERWRITE_ONLY=y

overlay

/ {
	chosen {
		nordic,pm-ext-flash = &mx25r64;
	};
};

&qspi {
	status = "disabled";
};



&spi4 {
	cs-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>, <&gpio0 11 GPIO_ACTIVE_LOW>, <&gpio0 17 GPIO_ACTIVE_LOW>;
	status = "okay";
	mx25r64: mx25r6435f@0 {

		compatible = "jedec,spi-nor";
		reg = <0>;
		spi-max-frequency = <8000000>;

		jedec-id = [c8 40 15];
		sfdp-bfp = [
			e5 20 f1 ff  ff ff ff 03  44 eb 08 6b  08 3b 04 bb
			ee ff ff ff  ff ff 00 ff  ff ff 00 ff  0c 20 0f 52
			10 d8 00 ff  23 72 f5 00  82 ed 04 cc  44 83 68 44
			30 b0 30 b0  f7 c4 d5 5c  00 be 29 ff  f0 d0 ff ff
		];
		size = <16777216>;
		has-dpd;
		t-enter-dpd = <10000>;
		t-exit-dpd = <5000>;
		dpd-wakeup-sequence = <30000 20 45000>;
	};
};

&gpio_fwd {
	uart {
		gpios = < &gpio1 0x9 0x0 >, < &gpio1 0x8 0x0 >, < &gpio1 0xb 0x0 >;
	};
};

4478.build.log

And then i decrease ipc_radio size to fix warning spot.But i got the same result.

Could you please help me with this issue ?

Thanks and best regards