https://devzone.nordicsemi.com/f/nordic-q-a/81281/bonding-problems-with-nrf52810Dear Community, We want to use bonding to connect our app to the nRF and create a personal account. So all your devices will have the same UUID. If the device never connected to a phone, it advertises, and anyone can connect. The first time it connectsen-USTelligent Community 13Tue, 02 Nov 2021 11:37:28 GMThttps://devzone.nordicsemi.com/thread/337055?ContentTypeID=1Tue, 02 Nov 2021 11:37:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:665ebc4e-bddf-4ff8-9e3a-756a657daaa9Vidar Berg<p>Hello,</p> <p>Could it be that your device is already bonded with the phone? The pairing request will be rejected in that case, please see my answer here for more details: <a href="https://devzone.nordicsemi.com/f/nordic-q-a/51965/pairing-and-bonding-after-deleting-synchronization/208927#208927">https://devzone.nordicsemi.com/f/nordic-q-a/51965/pairing-and-bonding-after-deleting-synchronization/208927#208927</a></p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>