Support for Custom PCB review

[NPanc.1]

Hello ST Community,

I recently made PCB using STM32WB55CGU6 MCU. I used STM32WB-Dongle as reference and designed 4-layer PCB.

After board bring up and soldering I found that every peripherals of my board are working except Bluetooth.

I am using P2P-server application code and I see nothing on ST-ble mobile app.

Can anyone suggest how can I make Bluetooth working?

Thanks and Regards,

Nikunj Panchani

[NPanc.1 · Accepted solution]

After so many trials and errors, I found that the external LSE was stuck due to the supercapacitor.

After removing the component LSE went well and the hardware worked.

Regards,

Nikunj