21energy Ofen 3 Pro XL Firmware — Availability & Support
Firmware for 21energy Ofen 3 Pro XL: check official download availability and manufacturer support. No verified public firmware file is currently listed.
Firmware is hardware-specific. Match the exact model and control-board revision, back up settings, use stable power, test one miner first, and never interrupt an upgrade. A wrong image can make the controller unbootable.
Support page only
21energy distributes Ofen firmware updates through the 21energy mobile app. The app can enable automatic updates or start an update manually; the manufacturer does not publish a standalone Ofen 3 firmware image for manual download. Keep the factory firmware and update it from the app.
Official source: 21energy App Changelog · in-app firmware updates ↗
Sources checked 2026-09-23