STM32 NUCELO-WBA55CG, No device found on target.

[BadEngineer]

My STM32 WBA55CG was working absolutely fine yesterday and today it seems that, my system refuses to find it. I have checked that i can see it from my device manager but when trying to flash it. It doesn't seem to do anything.

When i remove the JP2 jumper, it seems to turn on LD4. I have not removed the jumpers at all. They are as they came to me in the box. 

I am able to see it on the STLink Upgrade utility which is in the cube ide. 
Could it be because the ST-link chip is working fine but something is wrong with the microprocessor? 

[STTwo-32]

Hello @BadEngineer and welcome to the ST Community :smiling_face_with_smiling_eyes:.

If you remove the JP2, you will not be able to program or debug any code. If not, can you please try to upgrade the St-link firmware using CubeMX. Can you also ensure that you are using a data cable and not just a charging one. 

Also, please ensure that the Jumpers are set as mentioned on the STM32WBA Nucleo-64 board (MB1863) - User manual

Best regards. 

STTwo-32

[BadEngineer]

@STTwo-32  Thank you for your reply. 
I can confirm that i am using a micro usb cable that has the data lines (without the data lines it doesn't detect the unit at all). 
I can confirm my JP2 and JP1 jumpers are on. I have attached some additional pictures to this. 

I am using cube ide for this project, you can see through that, i am able to program up the stlink chip 

When it comes to flashing it says no device found on target. i can confirm that my reset configuration is "Connect under reset" 

  

[STTwo-32]

Can you try to program it using Cube Programmer.

Best Regards.

STTwo-32

[BadEngineer]

@STTwo-32  Ty for your suggestion. 
I have tried using stm32cube programmer but it can't seem to detect it at all (below is an image). I've tried UART, st-link and USB. None of them seem to detect it. 

My device manager does detect it as shown from the image. 

[STTwo-32]

I think the MCU is broken in this case. I suggest you try using another Board or change the MCU. 

Best Regards.

STTwo-32

[BadEngineer]

@STTwo-32 
Unfortunately I don't have another MCU that i can use or another board. 
Is there any way to verify that the MCU is broken? I know it has all the symptoms of broken MCU but is there anything i can try. 

Similar to this article: link ?

[STTwo-32]

Hello @BadEngineer 

Could you please try to connect it to Cube Programmer throw ST-LINK and not UART mode (using a Data cable and not a charging one).

Best Regards.

STTow-32