https://devzone.nordicsemi.com/f/nordic-q-a/58288/dynamically-change-the-read-write-security-operationHi, Is it possible to change the security option of characteristic read or write? For example , we initial the characteristic as JUST_WORK? Then change it to SEC_OPEN in some of case after disconnect? Thanks SDK version : 15.2 Device :52832en-USTelligent Community 13Wed, 26 Feb 2020 12:03:57 GMThttps://devzone.nordicsemi.com/thread/236517?ContentTypeID=1Wed, 26 Feb 2020 12:03:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d29ce118-b35e-4f04-a90a-50e9057db22dJoakim Jakobsen<p>No problem, happy to help.&nbsp;</p> <p>If you have any further questions, please let me know.&nbsp;</p> <p>Br,&nbsp;<br />Joakim Jakobsen</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/236512?ContentTypeID=1Wed, 26 Feb 2020 11:58:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:68b3bdd2-7e3f-4789-9958-72d27a1af9c8Brian Chang<p>Hi Joakim,</p> <p>Thanks for your support .</p> <p></p> <p>BR</p> <p>Brian Chang</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/236487?ContentTypeID=1Wed, 26 Feb 2020 10:46:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b26d4f77-8511-4219-ac3b-860db2af738bJoakim Jakobsen<p>Hi.&nbsp;</p> <p><span>It&#39;s not possible to update Services and characteristics on the fly. You need to disable then enable the softdevice and re-initialize the new BLE services.</span></p> <p><span>Please look at this previous ticket:&nbsp;<br /><a href="https://devzone.nordicsemi.com/f/nordic-q-a/9308/changing-characteristic-security-mode-on-the-fly">https://devzone.nordicsemi.com/f/nordic-q-a/9308/changing-characteristic-security-mode-on-the-fly</a>&nbsp;<br /></span></p> <p><span>Best regards,&nbsp;<br />Joakim</span></p><div style="clear:both;"></div>