Over the air updates essentials

Discover the core principles, architectural patterns, security considerations, and operational strategies behind over the air updates – an essential mechanism for maintaining and enhancing the security and functionality of embedded systems.

What are over the air updates?

Over-the-air (OTA) updates are a method for remotely updating a device’s root file system, firmware, or application via a wireless network, enabling continuous maintenance and enhancement of connected systems without physical access.

How to define your firmware update strategy?

Since firmware updates are key to fixing bugs, improving performance, adding new features, and addressing security vulnerabilities, it’s important to explore all available options and choose the strategy that best fits your system architecture.

A/B partitions for robust over the air updates

A/B partitioning is a robust update strategy that enhances system reliability by installing updates on an inactive partition. This approach allows seamless switching via the bootloader and ensures that, if an update fails, the system can safely roll back—keeping device functional and secure.

Over the air firmware update deployment: Beyond the basics

Over the air updates in DevSecOps practices

Implementing a robust firmware update system and ensuring your compilation platform can generate update artifacts is a fundamental practice in DevSecOps.

Embedded systems long term maintenance

The maintenance process in software development extends beyond the initial release of a product. It involves a meticulous strategy to ensure the ongoing stability, security, and performance of the software – including regular embedded software updates. 

Our solutions integrate over the air updates capabilities

Welma Yocto Linux distro

Production-grade Linux distribution based on Yocto, featuring an A/B partitioning scheme to support fail-safe firmware updates 

Kamea IoT device management platform

Device management platform offering integrated or external capabilities for remote update deployment and device lifecycle management.

Additional resources on over the air updates

The Embedded Kit penguin with orange cap

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