https://devzone.nordicsemi.com/f/nordic-q-a/23508/hrs-does-not-bond-with-centralI&#39;m using SDK11 and PCA10028. hrs works well, but did not bond with central(both android(kitkat) phone and iphone) in the nRF Toolbox app, althogh it&#39;s device manager ported and SEC_PARAM_BOND = 1 defined. the Android was bonded with PCA10028 aten-USTelligent Community 13Mon, 24 Jul 2017 05:28:31 GMThttps://devzone.nordicsemi.com/thread/92350?ContentTypeID=1Mon, 24 Jul 2017 05:28:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:02fa557c-3225-40ff-82c0-ce39b27796c5JoonDong<p>Thank you. I solved this problem. This was because of different security requirement between HRS and HTS.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/92349?ContentTypeID=1Fri, 14 Jul 2017 12:18:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a23e0e92-5708-4782-9298-af30d1f74ee5Hung Bui<p>To test bonding I would suggest you to try with ble_app_proximity.</p> <p>On iOS the best way to trigger bonding is trying to read a characteristic that requires encryption.</p> <p>Use nRFToolbox/nrFConenct to connect and try to read all the characteristic (or at least TxPower characteristic)</p><div style="clear:both;"></div>