Embedded OTA Rollback Testing overview

Tests over-the-air firmware update and rollback mechanisms for embedded devices -- validating OTA package signing and integrity verification on target hardware, simulating network interruptions at each download stage to confirm resume-capability, testing atomic update application with automatic rollback on boot-failure detection, verifying A/B partition switching under power-loss scenarios, measuring update-time budgets against field-deployment constraints, validating rollback preserves user configuration and calibration data, testing fleet-wide staged-rollout gating with canary device cohorts, and confirming telemetry reporting of update success and failure states. Produces OTA rollback test report and firmware-update certification record. Excludes OTA server infrastructure design.