Hello
My nRF9160 DK was working fine and it had certificates for AWS cloud. I wanted to update these certificates so I did it but every thing went wrong. Therefore i erased the nRF9160 dk hex file using programmer and i updated cellular modem also i didn't work then i toggled SW5 to nRF52 and i flashed hello world in it , then updated modem and hex file for nRF9160. ALSO did not work. there is no COM port at all. please help me in this issue. Thank you