https://devzone.nordicsemi.com/f/nordic-q-a/55869/connection-issues-pc-ble-driver-py-with-android-10-and-ios-13Hello, I am emulating the behaviour of a device doing this operations (Using pc-ble-driver-py 0.14.0 and nrf52840 dongle): Is connected by a smartphone app Exchanged data on a custom service with two custom characteristic: One characteristicen-USTelligent Community 13Mon, 23 Dec 2019 14:03:48 GMThttps://devzone.nordicsemi.com/thread/226738?ContentTypeID=1Mon, 23 Dec 2019 14:03:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fe33fb0e-ecd5-48fa-b69c-3250c5bd87aeVidar Berg<p>Hi Mirko,</p> <p>I&#39;m not sure what&#39;s causing the different behaviors on the different phones, but as a start, I would suggest logging unhandled event IDs in your BLE callback. Unhandled events may cause service discovery to stop, and lead to disconnects.&nbsp;</p> <p>Thanks,</p> <p>Vidar&nbsp;&nbsp;</p><div style="clear:both;"></div>