https://devzone.nordicsemi.com/f/nordic-q-a/91816/new-services-are-not-updated-on-a-previousl-bonded-clientHi, I am using nRF52832 for my development and our project requires us to have a bare minimum security between a gatt server(nRF52832) and gatt client(Android mobile APP). Hence we have chosen to go for the route where the gatt server(nrF52832) generatesen-USTelligent Community 13Tue, 13 Sep 2022 05:46:46 GMThttps://devzone.nordicsemi.com/thread/385839?ContentTypeID=1Tue, 13 Sep 2022 05:46:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:74ca7733-80f1-4583-bee0-6a3e19eb3877clock_work97<p>Thank you very much Einar Thorsurd, This also helped me understand the pairing and bonding section better <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/385735?ContentTypeID=1Mon, 12 Sep 2022 12:28:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e23d4627-ef73-4c6f-8fe9-9ecaaedf6cd1Einar Thorsrud<p>Hi,</p> <p>You need to have the service changed characteristic. That should be enabled by default though, but just in case you can add&nbsp;<code>CONFIG_BT_GATT_SERVICE_CHANGED=y</code> (or at least ensure you have not set it to <code>n</code>). When this is in place, the Bluetooth stack should automatically&nbsp;notified peers about the changed service.</p><div style="clear:both;"></div>