Full modem firmware update through UART

RE: Full modem firmware update through UART

dejans — Tue, 20 May 2025 07:47:04 GMT

Hi Ben,

[quote user="ben_pham"]Is it possible for you to provide or generate a 1.3.5 to 1.3.7 delta binary? [/quote]

This is not supported. Please have a look at this discussion.

Best regards,
Dejan

RE: Full modem firmware update through UART

ben — Mon, 19 May 2025 23:29:17 GMT

Hello Dejans,

I had a question regarding the delta binaries. Is it possible for you to provide or generate a 1.3.5 to 1.3.7 delta binary? Currently we are set to doing stepped updates, but would save some time to go directly from modem firmware version 1.3.5 to 1.3.7.

Thanks!

Ben

RE: Full modem firmware update through UART

dejans — Mon, 19 May 2025 13:18:31 GMT

Hi Ben,

[quote user="ben_pham"]I have resolved the issue with the delta update. It was an issue with how I was passing over the data.[/quote]

This is great to hear.

[quote user="ben_pham"]I would still like clarification on the full modem update though. [/quote]

You can find a lot of relevant information in our documentation. You should have a look at dfu_target library which provides API support for different types of firmware upgrades. DFU_target library uses fmfu_fdev (full modem firmware using flash device) library which implements support for full modem FOTA using nrf_modem_bootloader API.

[quote user="ben_pham"]One concern I have with using the delta update method is the scratch size. Is there an expected size each delta update file?[/quote]

Theoretical maximum delta size on nrf9160 is 256 KB.

Best regards,
Dejan

RE: Full modem firmware update through UART

ben — Fri, 16 May 2025 23:22:03 GMT

Hello Dejans,

I have resolved the issue with the delta update. It was an issue with how I was passing over the data. I would still like clarification on the full modem update though.

One concern I have with using the delta update method is the scratch size. Is there an expected size each delta update file?

Thanks again,

Ben

RE: Full modem firmware update through UART

dejans — Fri, 16 May 2025 21:26:39 GMT

Hi,

[quote user=""]I have taken a look at the API required to program using the mfw_nrf9160_update_from_1.3.5_to_1.3.6.bin, and have been getting a NRF_ENOENT (2) error when calling nrf_modem_delta_dfu_write().[/quote]

Can you elaborate on this (what you did and what you tried to achieve) and provide complete log which shows the error?

I will look into your questions during next week.

Best regards,
Dejan