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Associate
May 30, 2025
Question

B-WL5M-SUBG1 - "Launching LoRaWAN_End_Node has encountered a problem"

  • May 30, 2025
  • 2 replies
  • 313 views

Split from https://community.st.com/t5/stm32-mcus-wireless/development-board-for-stm32wl5moc/td-p/795521 as this is a new question.


Hi @STTwo-32 ,   

    I have ordered and received two B-WL5M-SUBG1 boards for my testing. I am able to flash one B-WL5M-SUBG1 board. When I am trying to flash the another B-WL5M-SUBG1 board, I am getting this below error. Seems like HW issue or something else? Could you please help me to rectify this issue?

Prabakaran_0-1748602867140.jpeg

Looking for your valuable response :) .

Thanks,

Praba

2 replies

Andrew Neil
Super User
May 30, 2025

The message tells you that it failed to initialise the ST-Link.

What ST-Link are you using?

The message also tells you to check power and cabling - have you done that?

 

More tips on resolving debugger connection problems:

How to solve connection errors when connecting and programming the STM32 target board.

How to solve debugger connection issues

 

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
Associate
June 4, 2025

I am using STLINK-V3MINIE In-Circuit Debugger And Programmer and also I am using the same power and data cable which I using for the another board. So one B-WL5M-SUBG1 board is working and another B-WL5M-SUBG1 board is not working and getting the above error