https://devzone.nordicsemi.com/f/nordic-q-a/64873/do-i-need-to-flash-softdevice-s140-when-programming-the-nrf52840-dongle-using-another-development-board-as-debuggerhello Nordic i want to use the bl652 laird development board (nrf52832) as a debugger for the nrf52840 dongle i have been working with that board allready so it has the s132 softdevice on it, maybe its a stupied question but i want to be sure theen-USTelligent Community 13Mon, 17 Aug 2020 14:20:36 GMThttps://devzone.nordicsemi.com/thread/264911?ContentTypeID=1Mon, 17 Aug 2020 14:20:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b2f6949d-015a-4308-8c3d-9e8047f34c95haakonsh[quote user=""]1. do i need to flash the s140 to the nrf52840 dongle before programing it and using the s140 examples ? if so what will be the easy way to do that ?[/quote] <p>&nbsp;Yes. The easiest way is to use the USB bootloader and the Programmer app in nRF Connect For Desktop.<br /><br /><br /></p> <p>&nbsp;</p> [quote user=""]2.&nbsp; if i would like to later use the usb on the dongle as a virtual serial port on my pc, how can i simulate a uart port when the dongle is connected and debugged via the development board ?[/quote] <p>&nbsp;You need to use the USB CDC library, see the USB CDC example in the SDK.&nbsp;</p><div style="clear:both;"></div>