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ASIC.TOOLS / FIRMWARE

Download Bitmain Antminer S21 XP Hyd (473Th) Firmware

Download firmware for Bitmain Antminer S21 XP Hyd (473Th) from the official source. Versions: 1. Check compatibility and release details; local copies are unavailable.

Bitmain Antminer S21 XP Hyd (473Th)

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.

Available versions

1 version
Exact modelOfficial source: BITMAIN Product Manual & Firmware ↗
Version

FR-1.70

FR-1.70(260108-S21 XP Hyd.).bmu

Local copy unavailableOpen official source ↗
Published / updated
2026-01-22
Compatibility
ANTMINER S21 XP Hyd.
Size
17.3 MB
Check file integrity · SHA-256

SHA-256

—

MD5

78c48309eb28517f012c4f30d33b3f4b

Verify the downloaded file with SHA-256 before uploading it to a miner.

Release notes

MD5:78c48309eb28517f012c4f30d33b3f4b Updates： 1. Optimized firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware.

Official source ↗

Sources checked 14 September 2026