Unable to use normal Bluetooth LE when the Fast Pair is enabled

[hz-fran]

Hi, 

I integrated the NRF locator sample in my code because I want to use the Fast Pair and FMDN. However, when I try to connect to my device via BLE, even with the Fast Pair code commented, but with the Fast Pair Kconfig related parameters enabled, the BLE connection fails. This works when the Fast Pair's Kconfig parameters are disabled, so it looks like the Fast Pair is messing with my BLE functionalities. From my point of view, this doesn't make a lot of sense, does anyone know how to solve this issue? 

I guess this could be a RAM related issue, since after adding the Fast Pair and FMDN related Kconfig parameters to the prj.conf, the RAM consumption is 99,56%. However, I don't think so, because I have the stack and heap for communications defined in the prj.conf and I haven't changed it since it was working before. 

Note: I am using the 2.7.0 SDK and I build using sysbuild.

Thank you. 

Best regards,

Francisco. 

[hz-fran]

Hi,

We discovered that the problem is that we were using the same Bluetooth identity for BLE and Fast Pair. Therefore, the static MAC address that we were using for the BLE was being replaced by the changing RPA addresses that the Fast Pair generates over time. 

Best regards,

Francisco. 

[danny0007]

Hi hz-fran 

did you find a solution regarding this? or it's impossible to make them both working simultaneously?

Regards

Danny