https://devzone.nordicsemi.com/f/nordic-q-a/76681/automatic-connect-to-the-gatt-serverHello, what are necessary that a Device automatically (without a 3rd party app) connect to the GATT Server with a HID Service. I have implement a HID Service, Device Description Service and a Battery Service I also make bonding with the deviceen-USTelligent Community 13Wed, 30 Jun 2021 08:12:55 GMThttps://devzone.nordicsemi.com/thread/317880?ContentTypeID=1Wed, 30 Jun 2021 08:12:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:266c9618-c38a-4c0c-99a6-b4333b5d800etesc<p>Hi,</p> <p>I assume that the issue you are seeing is that you never get any connection requests from the central that you have previously bonded with.</p> <p>The connection process is entirely controlled from the central side. All you can do as a peripheral is to advertise, and hope that the central will connect. That is how it works from the Bluetooth specification. In other words: This is mostly a question about settings on the central, and the answer will vary depending on which central we are talking about.</p> <p>From your peripheral point of view, you should advertise. You can choose to do directed advertising at first, in order to directly target the central of your choice.</p> <p>If, on the other hand, you do get a connection request but something fails during connection setup etc., then you should look into those issues in order to fix them.</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>