Hello. I have nRF52840 DK and nRF52840 Dongle. I want to test thread cli example. Everything is good for nRF52840 DK, because it uses Jlink-uart-usb converter. I dont understand how to use this example with dongle. I use \examples\thread\cli\ftd\usb\hex\nrf52840_xxaa_mbr_pca10059.hex. After connecting dongle to usb it is defined like nRF52 SDFU USB (COM38). As i understand this is interface for firmware download. There can i find command line interface??? In thу source of that example Openthread is used as library, so i cant understand what pins are used for UART? Please help.