In this blog we describe how to use the Zephyr microPlatform and the in-tree Zephyr samples to build, flash and perform an over the air (OTA) update of a Zephyr application over Bluetooth Low Energy (BLE). This demonstration uses the DFU support within Zephyr provided by mcumgr.
In the Zephyr microPlatform update 0.13, we have released support for the AT&T IoT Starter Kit (LTE-M). With the following instructions, you can start using Zephyr and the IoT Starter Kit with LWM2M in a matter of minutes.