https://devzone.nordicsemi.com/f/nordic-q-a/5702/dynamic-readsThe documentation of the S110 contains sequence charts that explain how the different GATT operations are performed. developer.nordicsemi.com/.../a00885.html It seems that the way the &quot;read characteristic value&quot; procedure works is that the clienten-USTelligent Community 13Mon, 23 Feb 2015 12:48:07 GMThttps://devzone.nordicsemi.com/thread/19968?ContentTypeID=1Mon, 23 Feb 2015 12:48:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:64ccedc7-03a3-4763-b084-0e1075d5e5caFormerMember<p>Thanks &lt;3 &quot;Authorization&quot; is a bit misleading, as there are also authenticated writes, and the whole pairing topic. However, it seems that it seems that this is indeed what I&#39;m looking for :-)</p> <p>The trigger to enable authorization seems to lie in the two flags rd_auth and wr_auth when adding characteristics: <a href="http://developer.nordicsemi.com/nRF51_SDK/doc/7.2.0/s110/html/a00259.html#a0d2f2743a556d382513a43607a08c057">developer.nordicsemi.com/.../a00259.html</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/19967?ContentTypeID=1Mon, 23 Feb 2015 12:18:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:87954389-7b2b-4cf9-bf5f-2d00df9c4ba6Petter Myhre<p>Can <a href="http://developer.nordicsemi.com/nRF51_SDK/doc/7.2.0/s110/html/a00888.html">GATTS Read Request with Authorization</a> be what you need? Then the application authorizes the read, and can provide the characteristic value.</p><div style="clear:both;"></div>