https://devzone.nordicsemi.com/f/nordic-q-a/52770/discoveringservices-problem-android-app-delay-600msHello. After connection establishing i would like to doscover services. I read here: https://stackoverflow.com/questions/41434555/onservicesdiscovered-never-called-while-connecting-to-gatt-server that need to add 600ms delay before &quot;gatt.discoverServicesen-USTelligent Community 13Tue, 01 Oct 2019 09:22:57 GMThttps://devzone.nordicsemi.com/thread/212753?ContentTypeID=1Tue, 01 Oct 2019 09:22:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fca89a6c-9c78-48b6-a944-4df32b44df68matej1410<p>I solved my problem. The issue was in line number 6.</p> <p><pre class="ui-code" data-mode="java">Toast.makeText(context, newState+&quot;&quot;, Toast.LENGTH_SHORT).show();</pre></p> <p><span>exactly in &quot;context&quot;&nbsp;</span></p><div style="clear:both;"></div>