Upgrading RAK811 Firmware

Hello all,

I badly need help. I wanted to upgrade the firmware of RAK811 and I used the below link.
https://github.com/RAKWireless/RAK811_LoRaNode/blob/master/doc/User%20Manual/WisNode-Lora Quick Start Guide V1.3.pdf
However, after erasing the flash I close the window and now I am not able to join the RAK811 to flash with the correct firmware.

Can you please advice?

Many thanks in advance,

I managed to access it by using the default Baud rate and settings.


Maybe you did not burn the new firmware after you erased the firmware, so now the board is empty. You can download the new firmware and burn it by [firmware].(https://github.com/RAKWireless/RAK811_LoRaNode/tree/master/doc/AT%20Command)