Upgrading firmware on RAK811 from 2.0.3.0 to 3.0.0.14

[stefan_bare (Stefan Dzisiewski-Smith)]

I have a RAK811 module that seems like it has old firmware on it. at+version gives OK2.0.3.0. Many other commands, for example at+set_config=device:restart give various errors.

I think that perhaps this old version of firmware doesn’t support many of the newer commands. I would like to upgrade it to version 3.0.0.14 and have tried to use the RAK Device Firmware Upgrade Tool v1.4. to do this. However, this results in a timeout every time I try.

For reference, the module I have has P/N: RAK811-868MHz and LOT number: 201919 printed on it, rather than RAK811(H) and the module also does not have the DevEUI printed on the outside.

My question are:

1. Can I safely upgrade this part to firmware version 3.0.0.14?
2. If I can safely upgrade this part’s firmware, how do I do it? I am happy to update the bootloader via SWD / STMCube32Programmer if needed, but I want to check that the hardware I am using is compatible.

Many thanks in advance

Stefan

[carlrowan]

Hi Stefan,

Please use this FW https://downloads.rakwireless.com/LoRa/RAK811/Firmware/RAK811(H)_Latest_Firmware.zip and update via STM32CubeProgrammer. Use the .hex file and not the .bin.

BOOT0 of RAK811 must be high if you are doing FW update.

[stefan_bare (Stefan Dzisiewski-Smith)]

Thank you for your help. This worked, although I would note for others that I had to hold BOOT0 high at power-up and keep it held high throughout the programming process. Holding it high and resetting the device by pulling the reset pin low was not sufficient.