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IoT Implementation — Modems, Power, Security, Certification · Pro
Firmware-over-the-air (FOTA) is essential for cellular IoT because devices are deployed in places where physical access is expensive or impossible. A smart meter in a basement, a soil sensor in a remote field, an asset tracker on a moving truck — sending a technician to update firmware costs more than the device. FOTA enables: security patches when vulnerabilities are found; feature updates as product capabilities evolve; bug fixes for issues discovered after deployment; protocol updates as standards evolve (e.g., DTLS 1.2 to 1.3 migration). Without FOTA, fielded devices are frozen at their…
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