https://devzone.nordicsemi.com/f/nordic-q-a/56282/old-attribute-table-is-not-go-awayWhen testing different applications on an nRF52840 dongle I have the following problem: The table of service and characteristics (1 service and 4 characteristics) of an earlier application is (partly) still available, although I have programmed a completelyen-USTelligent Community 13Tue, 07 Jan 2020 20:39:57 GMThttps://devzone.nordicsemi.com/thread/227996?ContentTypeID=1Tue, 07 Jan 2020 20:39:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:11359f84-317b-41f7-adbb-6563123943f8Stefan_B<p>Thank you.</p> <p>The flight mode helped once. The second time I had to restart the iPhone.</p> <p>But at least now I know what it is.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/227908?ContentTypeID=1Tue, 07 Jan 2020 13:32:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:05d869fb-756a-4607-a0a3-eb8eae7ccafbVidar Berg<p>The iPhone will cache the attribute table across connections to avoid having to repeat service discovery every time it connects. Try to toggle flight mode or reboot the phone. It&#39;s a trick to manually clear the cache and thus force a new service discovery on the next connection.</p> <p>The Bluetooth core specification has a good summary of how to attribute caching works if you are interested in more details, see vol. 3, part g, section 2.5.2</p><div style="clear:both;"></div>