Downloading the DK firmware

The nRF9160 DK firmware is available from the Nordic Semiconductor website.

Download the latest nRF9160 DK application and modem firmware from the nRF9160 DK Downloads page and extract it to a folder of your choice.
The zip file contains the following firmware:
Application firmware
The images_full folder contains full firmware images for different applications. When following this guide, use the image for the asset tracker application. Depending on where you are located, you need the image with either LTE-M or Narrowband Internet of Things (NB-IoT) support. See iBasis IoT network coverage for information about which mode is supported where.
Application firmware for Device Firmware Update (DFU)
The images_dfu_bin and images_dfu_hex folders contain firmware images for DFU. When following this guide, ignore these images.
Modem firmware
The modem firmware is located in the root folder of the zip file. When following this guide, use the mfwnrf9160*.zip file to update the modem firmware. Do not unzip the file.