https://devzone.nordicsemi.com/f/nordic-q-a/125892/is-an-app-necessary-when-a-phone-performs-channel-sounding-functionalityI&#39;m developing a keyless entry/start system for vehicles with the following requirements: The vehicle side uses an nRF54L15, while the mobile phone is a standard smartphone (e.g., Android 16+). The phone acts as the Bluetooth Central, anden-USTelligent Community 13Fri, 28 Nov 2025 13:14:45 GMThttps://devzone.nordicsemi.com/thread/555750?ContentTypeID=1Fri, 28 Nov 2025 13:14:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:190ca969-0f6b-46bf-8fc6-90b4f12ba67cElfving<p>Hi,</p> <p>This would have been supported from our side. Though when it comes to the android side I am not 100% sure, but I don&#39;t think this is supported, and that you are currently forced to use an app for this,&nbsp;but that might suddenly change with a new android version.&nbsp;I would rather recommend you to ask an android forum or something about this instead.&nbsp;</p> <p>Regards,</p> <p>Elfving</p><div style="clear:both;"></div>