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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

This topic has been closed for replies.

Best answer by NPanc.1

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

NPanc.1AuthorBest answer

Associate II

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

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