Encountering an issue about BLE connection between a phone and a STM32wb55cc

Hi,

We designed a custom PCB containing a STM32wb55cc and needed it to be connected by bluetooth with an application made by ourselves. Unfortunately, even if ou board is functionning pretty well with STM apps, with our own app we didn't manage to establish a connection between our board and a cellphone. We went through a lot of topics in this forum and didn't seem to see the same problem somewhere else. We also went through some workshops provided by STM over the BLE function but we didn't find any solution.

If you need more details about our project feel free to ask.

We hope we were clear enough about our issue.

Best regards