https://devzone.nordicsemi.com/f/nordic-q-a/78858/nrf5-sdk17-02-advertisingMay I ask, I changed the broadcast time 18000 in UART to 0, and the device crashed? May I ask why? Tell me, thank you! NRF5 SDK17.02en-USTelligent Community 13Tue, 24 Aug 2021 00:52:01 GMThttps://devzone.nordicsemi.com/thread/326253?ContentTypeID=1Tue, 24 Aug 2021 00:52:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6e415a53-a96f-4526-bae8-a879e40489d1liuyanfeng<p>yes ,i remember it ,thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/326195?ContentTypeID=1Mon, 23 Aug 2021 12:35:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cbe7a2cc-bc54-40a7-8dc8-858801cb92a5run_ar<p>Hi,</p> <p>If you are thinking about the ble_app_uart example and is changing advertisement duration to 0, this will fail with a &quot;invalid parameter&quot; error. Most likely it is advertising with limited discoverable mode. while infinit advertisments (setting duration to 0) is only available in &quot;general discoverable mode&quot;.</p><div style="clear:both;"></div>