I have a nrf9160 DK but when upload SLM application to it i can not send AT commands to it over it's usb port but in asset tracker application it works
i want to modify SLM so it work on the USB port As I want to connect to AWS via serial terminal
so how can do that and also i have to customize it for a MIKROE 4477 Click board too i am attaching the schematic for the click board 
