Hello,
I am currently developing an LTE/LwM2M application on a custom board using the nRF9160 and NCS version 2.1.0.We are almost finished with our application and the final open milestone is the modem firmware update implementation.
I used the "http_update/full_modem_update" sample and the "http_update/modem_delta_update example" as a starting point to implement both options for the modem update, however I am updating the firmware over LWM2M instead of HTTP. I first got the FMFU working using external flash, then I started working on the delta updates, expecting it would be far easier, however I ran into some errors. The modem firmware is currently updated to the latest version (1.3.3) and I am trying to update the firmware using the delta image "mfw_nrf9160_update_from_1.3.3_to_1.3.3-FOTA-TEST.bin". As can be seen in the image below, the write operation failed with the error code 22. I've look up this error code: "NRF_MODEM_DELTA_DFU_ERROR_INTERNAL_04" and have no idea what it means. Could someone elaborate on this and suggest a solution? Is it a bug in the modem or am I missing something?
Below you can find the "prj.conf" I am using:
# # Copyright (c) 2020 Nordic Semiconductor ASA # # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause # # General config CONFIG_NEWLIB_LIBC=y CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y CONFIG_CBPRINTF_FP_SUPPORT=y CONFIG_ASSERT=y CONFIG_REBOOT=y # DEBUGGING CONFIG_SERIAL=y CONFIG_UART_CONSOLE=n CONFIG_RTT_CONSOLE=y CONFIG_USE_SEGGER_RTT=y # Logging CONFIG_LOG=y CONFIG_ELEO_LOG_LEVEL_DBG=y # Network CONFIG_NETWORKING=y CONFIG_NET_NATIVE=n CONFIG_NET_IPV6=n CONFIG_NET_IPV4=y CONFIG_NET_SOCKETS=y CONFIG_NET_SOCKETS_OFFLOAD=y # LwM2M CONFIG_LWM2M=y CONFIG_LWM2M_COAP_BLOCK_SIZE=512 CONFIG_LWM2M_COAP_MAX_MSG_SIZE=1024 CONFIG_LWM2M_ENGINE_MAX_OBSERVER=100 CONFIG_LWM2M_ENGINE_MAX_MESSAGES=20 CONFIG_LWM2M_ENGINE_MAX_PENDING=20 CONFIG_LWM2M_ENGINE_MAX_REPLIES=20 CONFIG_LWM2M_ENGINE_VALIDATION_BUFFER_SIZE=128 CONFIG_LWM2M_ENGINE_DEFAULT_LIFETIME=30 CONFIG_LWM2M_DNS_SUPPORT=y CONFIG_LWM2M_SERVER_DEFAULT_PMIN=0 CONFIG_LWM2M_SERVER_DEFAULT_PMAX=120 CONFIG_LWM2M_CLIENT_UTILS=y CONFIG_LWM2M_DTLS_SUPPORT=y CONFIG_LWM2M_SECURITY_KEY_SIZE=33 CONFIG_LWM2M_SHELL=y # LwM2M 1.1 CONFIG_LWM2M_VERSION_1_1=y CONFIG_LWM2M_RW_SENML_CBOR_SUPPORT=y CONFIG_ZCBOR=y CONFIG_ZCBOR_CANONICAL=y CONFIG_LWM2M_RW_SENML_CBOR_RECORDS=35 CONFIG_LWM2M_COMPOSITE_PATH_LIST_SIZE=10 CONFIG_LWM2M_RW_OMA_TLV_SUPPORT=y # Disable unused object supports CONFIG_LWM2M_PORTFOLIO_OBJ_SUPPORT=n CONFIG_LWM2M_CLIENT_UTILS_SIGNAL_MEAS_INFO_OBJ_SUPPORT=n # CoAP CONFIG_COAP_INIT_ACK_TIMEOUT_MS=4000 CONFIG_COAP_EXTENDED_OPTIONS_LEN=y CONFIG_COAP_EXTENDED_OPTIONS_LEN_VALUE=40 # LTE link control CONFIG_LTE_LINK_CONTROL=y CONFIG_LTE_AUTO_INIT_AND_CONNECT=n CONFIG_LTE_NETWORK_MODE_LTE_M_NBIOT_GPS=y # Modem library CONFIG_NRF_MODEM_LIB=y CONFIG_NRF_MODEM_LIB_SYS_INIT=n CONFIG_MODEM_INFO=y CONFIG_MODEM_INFO_ADD_DATE_TIME=n CONFIG_MODEM_KEY_MGMT=y CONFIG_FMFU_FDEV=y # Crypto (used for full modem update) CONFIG_OBERON_BACKEND=y CONFIG_NORDIC_SECURITY_BACKEND=y # Disable all non-used crypto CONFIG_NRF_SECURITY_RNG=n CONFIG_MBEDTLS_AES_C=n CONFIG_MBEDTLS_CHACHA20_C=n CONFIG_MBEDTLS_POLY1305_C=n CONFIG_MBEDTLS_ECP_C=n CONFIG_MBEDTLS_RSA_C=n CONFIG_MBEDTLS_DHM_C=n CONFIG_MBEDTLS_SHA1_C=n CONFIG_MBEDTLS_SHA384_C=n CONFIG_MBEDTLS_SHA512_C=n CONFIG_MBEDTLS_GCM_C=n # This is the one we need CONFIG_MBEDTLS_SHA256_C=y # Enable settings storage CONFIG_SETTINGS=y CONFIG_FCB=y CONFIG_SETTINGS_FCB=y # DFU Target CONFIG_DFU_TARGET=y CONFIG_DFU_TARGET_STREAM=y CONFIG_DFU_TARGET_FULL_MODEM=y # Allow FOTA downloads using download-client CONFIG_DOWNLOAD_CLIENT=y CONFIG_DOWNLOAD_CLIENT_STACK_SIZE=4096 CONFIG_DOWNLOAD_CLIENT_HTTP_FRAG_SIZE_1024=y CONFIG_FOTA_DOWNLOAD=y CONFIG_LWM2M_FIRMWARE_UPDATE_OBJ_SUPPORT_MULTIPLE=y CONFIG_LWM2M_FIRMWARE_UPDATE_OBJ_INSTANCE_COUNT=3 # Heap and stacks CONFIG_HEAP_MEM_POOL_SIZE=20480 CONFIG_MAIN_STACK_SIZE=4096 CONFIG_LWM2M_ENGINE_STACK_SIZE=4096 CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048 CONFIG_AT_MONITOR_HEAP_SIZE=1024 ## PSM CONFIG_LTE_PSM_REQ_RPTAU="00000011" CONFIG_LTE_PSM_REQ_RAT="00100001" ## eDRX CONFIG_LTE_EDRX_REQ=y CONFIG_LTE_EDRX_REQ_VALUE_LTE_M="1001" # GPS CONFIG_GNSS_PRIORITY_ON_FIRST_FIX=n CONFIG_GNSS_SEARCH_TIMEOUT=120 CONFIG_GNSS_SEARCH_INTERVAL_TIME=180 CONFIG_SUPL_CLIENT_LIB=y # Application Event Manager CONFIG_APP_EVENT_MANAGER=y CONFIG_APP_EVENT_MANAGER_LOG_EVENT_TYPE=y CONFIG_APP_EVENT_MANAGER_LOG_LEVEL_INF=y CONFIG_APP_EVENT_MANAGER_SHOW_EVENTS=y # Set SPM as default secure firmware CONFIG_BUILD_WITH_TFM=n CONFIG_SPM=y # GPIO CONFIG_GPIO=y # SPI CONFIG_SPI=y CONFIG_SPI_NRFX=y CONFIG_SPI_NOR=y CONFIG_SPI_NOR_SFDP_RUNTIME=y CONFIG_SPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096 CONFIG_SPI_NRFX_RAM_BUFFER_SIZE=32 # FLASH CONFIG_FLASH=y CONFIG_STREAM_FLASH=y CONFIG_STREAM_FLASH_ERASE=y CONFIG_FLASH_PAGE_LAYOUT=y CONFIG_FLASH_JESD216_API=y CONFIG_FLASH_MAP=y CONFIG_NVS=y CONFIG_MPU_ALLOW_FLASH_WRITE=y # MCUBOOT CONFIG_BOOTLOADER_MCUBOOT=y # Image manager CONFIG_IMG_MANAGER=y CONFIG_IMG_ERASE_PROGRESSIVELY=y # WDT CONFIG_WATCHDOG=y CONFIG_WATCHDOG_WINDOWN_MIN=0 CONFIG_WATCHDOG_WINDOWN_MAX=90000 # Partition Manager CONFIG_PM_EXTERNAL_FLASH_MCUBOOT_SECONDARY=y CONFIG_PM_OVERRIDE_EXTERNAL_DRIVER_CHECK=y # Date-Time library CONFIG_DATE_TIME=y CONFIG_DATE_TIME_UPDATE_INTERVAL_SECONDS=86400
