https://devzone.nordicsemi.com/f/nordic-q-a/17360/uart-sending-garbage-data-when-transition-from-bootloader-to-appHello, I am using IAR Embedded Workbench for ARM ver 7.6. We are using nrf52 with SDK 11 and the corresponding soft device. We are having a problem with the uart sending garbage data. In the bootloader, we send version information over the uarten-USTelligent Community 13Thu, 27 Oct 2016 08:59:19 GMThttps://devzone.nordicsemi.com/thread/66746?ContentTypeID=1Thu, 27 Oct 2016 08:59:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:06f4689a-4f62-4444-b8bb-4dab802cddbdbjorn-spockeli<p>Are you unintializing the UART before you branch to the application? Since there is no reset when the bootloader branches to the application, the previous configuration may still be retained and initializing it again may lead to some undefined behaviour.</p><div style="clear:both;"></div>