What's the actual procedure to update firmware

LPWAN Modules / EVBs RAK811
1

Could someone please tell me what is the correct current procedure to update the RAK811 Breackout board firmware?

at+version
OK V3.0.0.13.H.T3
at+get_config=device:status
OK Board Core:RAK811
MCU:STM32L151CB_A
LoRa chip:SX1276

I have tried both procedures without success:
RAK DUFT 1.4 and SMT32CubeProgrammer

2

Resolved!
Something was wrong when I initially tried to configure the module in boot mode.
The initial step should be to load the .hex file using STM32CubeProgrammer.
Now my module has the latest firmware version. I understand that the DFU tool 1.4 can be used from now on?

3

If the firmware version you have now is V3.0.0.14 and up, you can now use DFU tool 1.4 for future upgrades.

4

That’s rigth, I have now V3.0.0.14 firmware. Thank you!