ASIC firmware downloads / ASIC specifications
ASIC.TOOLS / FIRMWARE
Canaan Avalon A1566I firmware
Official firmware versions matched to the exact ASIC model or manufacturer family. Local copies include SHA-256 checksums.

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.
Official manufacturer firmware
1 versionsExact model Official source: Canaan Resources & Downloads ↗
| Version | Published / updated | Compatibility | Size | SHA-256 | Download |
|---|---|---|---|---|---|
| 25050901_25462b2_46bbe92A15xI-A3197S-LC_25050901_25462b2_46bbe92.aup | 2025-10-30 | A1566I/A1566HU/A1566HS, K210 control board | 1.1 MB | — | Official listing; local copy unavailableOfficial source ↗ |
| Release notes: Latest official K210 release listed for the A1566I/A1566HU/A1566HS family. | |||||
Verify the downloaded file with SHA-256 before uploading it to a miner.
Sources checked 14 September 2026