Bootloader - upgrading version from remote

[alonmat]

Hi,

We have a device containing nrf52840 CPU with GPS, Simcom modem and other things.

We already implemented a bootloader upgrading via BLE.

Do you have any information, recommendations, application notes, tools, examples, etc

for how to upgrade our device firmware from remote

via modem.

Alon Matalon

Cloud-wise

[Menon]

Hello,
From your explanation, I guess that you are using the older nRF5 SDK is that correct? If so, I don’t think we have any samples demonstrating the use of a bootloader other than the Nordic Secure Bootloader. You can check the Bootloaders and DFU modules, also see the section open bootloaders.

Also, please note that the samples I referred to earlier are from the nRF Connect SDK, since support for cellular connectivity/modem is available only in the nRF Connect SDK.

The nRF5 SDK is currently in maintenance mode, so you may need to implement this solution on your own.

Kind regards,
Abhijith

[alonmat]

Yes. We are using old NRF SDK.

I already started with this example: nrf_sdk\examples\dfu\secure_bootloader\pca10056_uart

I think this version is the closest to what I need.

I will read upgrade data via UART driver which is connected to the modem.

[Menon]

Hello,

alonmat said:

I think this version is the closest to what I need

Good to hear that.

Kind Regards,

Abhijith