https://devzone.nordicsemi.com/f/nordic-q-a/19370/advertising-hang---disabled-uartI&#39;m trying to remove the debugging UART statements to reduce power consumption, however, not initializing the UART seems to hang the system right after advertising start, sometimes I don&#39;t even pick up the initial advertisement. My code is looselyen-USTelligent Community 13Wed, 01 Feb 2017 12:16:05 GMThttps://devzone.nordicsemi.com/thread/75137?ContentTypeID=1Wed, 01 Feb 2017 12:16:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b23df689-ddf4-47db-ac2d-23e53d1a02b5Sigurd<p>Hi,</p> <p>By default, the ble_app_hrs example does not enable the UART. The NRF_LOG and UART is enabled by calling the function NRF_LOG_INIT(). It should be enough to just comment out this function to not use the UART/not enable it. I did a quick measurement with DCDC enabled, by not calling NRF_LOG_INIT() the power-consumption is 90µA.</p><div style="clear:both;"></div>