generated: '2026-07-20' method: searched source: https://docs.ninefives.com/attenuator/rest-api/firmware/ versioning: api: scheme: unversioned-path note: REST paths are /api/... with no version segment firmware: scheme: semantic example: 1.2.0-abc1234 slots: dual (A/B) redundant slots; active + inactive with independent versions update: channels: [upload (.raucb bundle), url, resume, cancel] modes: [single-slot, full (both slots)] async: true deprecation: policy_url: null sunset_header: false note: No published deprecation/sunset policy for the device API. sla: url: null note: Hardware warranty (2-year) and 30-day money-back guarantee published on storefront; no API/service SLA. status_page: null deprecated_operations: []