Full modem firmware update FOTA files.

[JVantol]

When I look at the zip files that are released for modem updates, I see that they contain a number of files, including delta updates for updates within a major version.

What i don't understand is if you're going to use the newly available full modem fota that utilizes an external serial flash, is which file you ask the download client to download? I think that actually none of the supplied files in the zip are suitable. I was presuming there would be a binary format file available for the full modem fota, but I don't see one.

Regards,

Josh

[Didrik Rokhaug]

Hi,

 

I think that actually none of the supplied files in the zip are suitable. I was presuming there would be a binary format file available for the full modem fota, but I don't see one.

 You are correct.

As full modem FOTA capability didn't exist in the SDK when the past modem FW versions were released, binary files for the full modem was not included.

They will of course be included in future modem FW releases.

Until then, you can find version 1.2.1 and 1.2.2 here:

http://nrfconnectsdk.s3.eu-central-1.amazonaws.com/fmfu_1.2.1.bin

http://nrfconnectsdk.s3.eu-central-1.amazonaws.com/fmfu_1.2.2.bin

Best regards,

Didrik

[Lukáš]

Hi Didrik,

could you please tell us a method, how to put together the bin for FMFU FOTA from existing MFWs? I see there are two image segments in each MFW zip. One seems to be a bootloader and the other the firmware. The third file is the digest to check whether they are valid in flash. Would you be willing to provide us a script on how to merge these files to the compatible bin file?

Lukas

[Didrik Rokhaug]

Hi Lukas,

I don't know all the details myself, but it shouldn't be necessary for you to make your own FMFU binaries.

Future releases will have a FMFU image. And for doing tests now, the two images I linked to should be enough.

Best regards,

Didrik