https://devzone.nordicsemi.com/f/nordic-q-a/87629/nrf52-multirole-testHello, We are developping based on SDK 15.2 for nRF52 using IAR 8.11 and S132 V6.1.0 as softdevice for central/peripheral application. Bellow is the test scenario explained: 1- Connect to the mobile as peripheral without any issues(ability to send anden-USTelligent Community 13Fri, 06 May 2022 09:28:48 GMThttps://devzone.nordicsemi.com/thread/366649?ContentTypeID=1Fri, 06 May 2022 09:28:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b2602251-7fcc-4661-8a4b-842ee8924b2aHung Bui<p>Hi Mehdi,&nbsp;</p> <p>Have you tested with the&nbsp;ble_app_hrs_rscs_relay example ?&nbsp;<br />It has the exact features that you described.&nbsp;</p> <p>Regarding the issue that&nbsp;<span>sd_ble_gatts_hvx returns BLE_ERROR_GATTS_SYS_ATTR_MISSING , I suspect that it was a wrong connection handle used.&nbsp;<br />Please double check if you use the conn_handle for the connection between phone and the device in&nbsp;sd_ble_gatts_hvx&nbsp;() call.&nbsp;</span></p><div style="clear:both;"></div>