The Qualcomm-based modules are able to be upgraded and downgraded between firmware versions and across carrier configuration files. This video walks through how to perform this operation using the QMI Lite SDK, which is a standalone application, using an MC74 module. It is applicable to all of our EM, MC, RC and WP families of units.

In some applications, the ability to know the location of the unit without powering up a GPS is useful. Using the method shown in this video, an application can perform a geolocation operation through the use of a pure cell ID. This is demonstrated using the WP7607, which is a 2G/3G/4G module. However, any module can be used.

From a UE (user equipment, so a handset/module) perspective there are a number of parameters that are critical to its operation. This video explains what these numbers are, where they come from and how they are used. It is applicable to all UE's on the market.

SMS is still the ultimate backup mechanism for sending data in several systems. It is universally available and not dependent on several of the systems that IP might be in the case of a significant outage. This video shows how to use AT commands to send an SMS.

This video shows how to start a data session that a Linux system is able to use for data communications over its USB link when connected to a 3G or LTE network.

Several of the Qualcomm based modules that Sierra Wireless produce have the ability to store multiple firmware and carrier (i.e. Vodafone, Verizon, Docomo, etc.) configuration files. This video shows how to manage and switch between these firmware and carrier configuration files.

This video walkthrough demonstrates how to retrieve NMEA frames from modules like the EM/MC74. All required AT commands are reviewed and demonstrated.

The Qualcomm based modules may be upgraded and downgraded between firmware versions and across carrier configuration files. This video walks through how to perform this operation using the QMI SDK on an EM7565. It is applicable to all of our EM, MC, RC and WP families of units.

Within mobile networks there are different ways of being attached to a 3GPP PLMN (public land mobile network). This video explains the different types of attach statuses and how they can affect and influence data connections you are using.

In embedded designs CMUX is a popular mechanism to use where an external PPP dial-up connection is used rather than the onboard IP stack. This allows the application firmware to have the connection up while still performing other operations on the unit such as querying network status, etc. This video walks through the tools that can be used on a Linux system to start CMUX, and its operation.

The CF3 concept introduced by Sierra Wireless, and its companion product the snap-in socket, are a significant step forward in enabling the user to test multiple types of units on a single board. The snap-in socket, when handled correctly, is a robust and flexible tool to enable this but it does need to be handled properly with units being inserted and removed correctly. Otherwise it can result in fatal damage to the lid, socket, and potentially the unit. This video walks through this process to make sure the correct procedure is applied.

This document explains how to get started with Legato.