BLE connection parameter update from peripheral to nRF connect on iOShttps://devzone.nordicsemi.com/f/nordic-q-a/70439/ble-connection-parameter-update-from-peripheral-to-nrf-connect-on-iosHi, I am running an nRF5 SDK BLE example ( Cycling Speed and Cadence Application ) on nRF52 DK as peripheral and connect to nRF connect mobile app as central, and I would like to change connection parameter. I tried two ways for updating the paramsen-USTelligent Community 13Sun, 17 Jan 2021 21:24:03 GMTRE: BLE connection parameter update from peripheral to nRF connect on iOShttps://devzone.nordicsemi.com/thread/289589?ContentTypeID=1Sun, 17 Jan 2021 21:24:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0376bcbb-1a9e-4fb9-add5-884e88aa92f5Joakim Jakobsen<p>Glad you figured it out. Thanks for sharing the solution.</p> <p>Br, <br />Joakim</p><div style="clear:both;"></div>RE: BLE connection parameter update from peripheral to nRF connect on iOShttps://devzone.nordicsemi.com/thread/289528?ContentTypeID=1Fri, 15 Jan 2021 21:32:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9b1adfd2-8900-45b5-85d7-75cd4c443a93YangGao123<p>Another visit to Apple&#39;s BLE guideline showed that I was using an out of range timeout value, they only accept [2,6] and I gave it 8, no wonder it got rejected the way it did. I tried 6s as timeout and slave latency of 1 it worked fine for both connection param initialization and on the fly update.</p><div style="clear:both;"></div>