Full modem firmware update for modem v1.3.0

[AndreasPettersson]

I am working in a project where we want to be able to do full modem firmware update with FOTA for modem version 1.3.x. According to the release notes, in order to do this, we need to use the .cbor file in the zip from the release.

I have tried to follow the example in samples/nrf9160/http_update/full_modem_update. This sample however only uses v1.2.1 and v1.2.2. Can I follow the same steps for v1.3.x using the .cbor file? Or do I need to do something more? Like some digest?

I have modified the sample to fit my project. My hardware has a nrf9160 which downloads the firmware via LwM2M. The hardware also has an external flash memory which I use for the firmware update. I am currently using NCS version 1.6.1.

[Waqar Ahmed]

Hi  Andreas,
I have the similar situation .i want to update the modem firmware from 1.2.3 to 1.3.1 over the air. I am using AWS(MQTT) over the update,
can you please give me hint which .bin file I have to used.

Thanks

[AndreasPettersson]

Hi Waqar,

I have not used AWS (MQTT), but the files should still be the same. In order to update from modem firmware v1.2.3 to v1.3.1 you need to do a Full modem firmware update (FMFU), and for that you can use the following link:

https://www.nordicsemi.com/-/media/Software-and-other-downloads/Dev-Kits/nRF9160-DK/nRF9160-modem-FW/mfw_nrf9160_1.3.1.zip

That .zip-file contains various files, but the file that you should use for FMFU is

firmware.update.image.cbor

which is a binary file, encoded using cbor.

Hope it works!

/Andreas

[AndreasPettersson]

Or, if you want to use a URL directly in your application, and maybe use the download client library to download it, you can use the following URL:

https://nrfconnectsdk.s3.eu-central-1.amazonaws.com/fmfu_1.3.1.bin

You can look at the sample https://github.com/nrfconnect/sdk-nrf/tree/main/samples/nrf9160/http_update/full_modem_update for reference.

/Andreas

[Waqar Ahmed]

if i use .cbor files  i am getting this error
I am using nrfConnect sdk 1.5.0

2022-03-09T15:02:35.224Z DEBUG modem << D: MQTT_EVT_PUBACK: id = 53713 result = 0
2022-03-09T15:02:36.103Z DEBUG modem << I: Configuring socket timeout (60 s)
2022-03-09T15:02:36.106Z DEBUG modem << I: Connecting to dl40-fota.s3-eu-west-1.amazonaws.com
2022-03-09T15:02:36.243Z DEBUG modem << I: Downloading: firmware.update.image.cbor [0]
2022-03-09T15:02:36.245Z DEBUG modem << D: AWS_FOTA_EVT_START
2022-03-09T15:02:36.247Z DEBUG modem << AWS_IOT_EVT_FOTA_START
2022-03-09T15:02:36.250Z DEBUG modem << PSM mode off requested due to FOTA update
2022-03-09T15:02:37.154Z DEBUG modem << Feeding watchdog
2022-03-09T15:02:37.269Z DEBUG modem << I: Downloaded 1024/2015653 bytes (0%)
2022-03-09T15:02:37.271Z DEBUG modem << E: No supported image type found
2022-03-09T15:02:37.273Z DEBUG modem << E: Unknown image type
2022-03-09T15:02:37.275Z DEBUG modem << E: dfu_target_init error -134
2022-03-09T15:02:37.276Z DEBUG modem << E: FOTA download failed, report back
2022-03-09T15:02:37.278Z DEBUG modem << E: AWS_FOTA_EVT_ERROR
2022-03-09T15:02:37.280Z DEBUG modem << AWS_IOT_EVT_FOTA_ERROR/nPublication reset to default value/nI: Modem upgrade aborted.
2022-03-09T15:02:37.282Z DEBUG modem << E: Failed to close modem DFU socket.
2022-03-09T15:02:37.283Z DEBUG modem << E: Unable to clean up dfu_target
2022-03-09T15:02:37.284Z DEBUG modem << E: Unable to reset DFU target
2022-03-09T15:02:37.287Z DEBUG modem << I: Fragment refused, download stopped.

[AndreasPettersson]

What was the full URL you used in this test?

It looks to me like you either get the incorrect file or that you have not set

CONFIG_DFU_TARGET_FULL_MODEM=y

in your config, which you need to do. You can look in the file subsys/dfu/dfu_target/src/dfu_target.c for the ifdefs in dfu_target_img_type function.

Also, I am using nrf v1.8.0 currently, so there might be some changes from v1.5.0, but should probably be the same in this area.

[Waqar Ahmed]

Thanks 
Andreas

I have successfully updated from 1.2.3 to 1.2.7 but after doing configuration .i am still getting the error

RRC mode: Connected

D: MQTT_EVT_PUBACK: id = 27137 result = 0

I: Configuring socket timeout (60 s)

I: Connecting to dl40-fota.s3-eu-west-1.amazonaws.com

I: Downloading: fmfu_1.3.0.bin [0]

D: AWS_FOTA_EVT_START

 AWS_IOT_EVT_FOTA_START 

PSM mode off  requested due to FOTA update

I: Downloaded 1024/1991053 bytes (0%)

E: No supported image type found

E: Unknown image type

E: dfu_target_init error -134

E: FOTA download failed, report back

E: AWS_FOTA_EVT_ERROR