https://devzone.nordicsemi.com/f/nordic-q-a/2138/hid-and-hrs-profiles-in-one-deviceHello, i would like to use HRM, HID, BAS and DIS profiles simultaniously. I used HID mouse example. I append required HRM things and it work almost properly. Problem is fault during storing CCCD information in HID_evt. err_code = ble_bondmngr_sys_attr_storeen-USTelligent Community 13Tue, 08 Apr 2014 11:08:39 GMThttps://devzone.nordicsemi.com/thread/9103?ContentTypeID=1Tue, 08 Apr 2014 11:08:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3b914516-5c87-43c9-8be9-7fa32cf28978H&#229;kon Alseth<p>Hi Robert,</p> <p>This is the CCCD; <a href="https://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml">developer.bluetooth.org/.../DescriptorViewer.aspx</a></p> <p>You can count the number of CCCDs by checking how many of your services uses notification or indication. You can also see on bluetooth developer site which characteristic within a service is required/optional to have notification or indication. In your case, I believe you may have to do a erase of the pages used by the bondmanager, as Keil usually only erases the pages used directly by the application (check &quot;Erase Full Chip&quot; under debugger settings in Keil).</p> <p>Best regards Håkon</p><div style="clear:both;"></div>