RAK5202 Not responding

LPWAN Nodes RAK7205 / RAK5205
1

Issue: Board is not responding

Setup: RAK5202

Server:

Details: Hey, I tried to send any command but I get no response:

image
image925×601 42.9 KB

After that I tried to format the board with the RAK upgrade but it failed. So I tried to download firmware to the board but I keep getting this error:

image
image402×536 22.1 KB

I checked even with STM32programmer but still:

image
image1202×788 59.5 KB

The last thing that I tired is to reset the bootloader with the reset button but I get nothing back:

IMG_20200610_152701
IMG_20200610_1527011728×2304 987 KB

You can see that there is a red led turned on and that I connected the boot jumper.

The computer recognize the board:

image
image783×573 24.1 KB

What else can I do to fix that?

2

Hi @ophirg123
Can you try once again the STM32 Programmer? Close all other applications that may use the serial port (RAK serial tool etc) and with boot jumper on the pins and USB connected to the PC press the reset button of the board. Then open STM32 programmer and try to connect.

3

Hey, I tried again and I get the same… no respond

image
image1513×903 69.6 KB

I have ST-LINK V2 if it can help for something.

4

Hey there are any news?