https://devzone.nordicsemi.com/f/nordic-q-a/79502/uarte-lost-a-byte-after-uarte-disable-and-enable-againHi,all~ The program runs on nRF52833.The SDK version is NRF5_SDK_17.0.2_D674DDE. At the beginning, MCU sends data to nRF52833 through serial port, and the data can be received correctly(see pic one）. When I use THE GPIO control module to disable anden-USTelligent Community 13Fri, 10 Sep 2021 07:34:52 GMThttps://devzone.nordicsemi.com/thread/328935?ContentTypeID=1Fri, 10 Sep 2021 07:34:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3b076729-72ba-45f8-88d8-4715276c50afSimonr<p>Closing this case as it is a duplicate of&nbsp;<a href="https://devzone.nordicsemi.com/support-private/support/276259">https://devzone.nordicsemi.com/support-private/support/276259</a>&nbsp;</p><div style="clear:both;"></div>