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ASIC.TOOLS / FIRMWARE

Download Bitmain Antminer S11 (20.5Th) Firmware

Download official firmware for Bitmain Antminer S11 (20.5Th). Versions: 2. Local downloads, hardware compatibility, file sizes and SHA-256 checksums.

Bitmain Antminer S11 (20.5Th)

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

2 versions
Exact modelOfficial source: BITMAIN Product Manual & Firmware ↗
Version

201908011639

ANTMINER-S11-all-user-201908011639-sig.tar.gz

Download firmware↓ 40.3 MB
Published / updated
2025-05-29
Compatibility
ANTMINER S11
Size
40.3 MB
Check file integrity · SHA-256

SHA-256

fe790584647df7bf9efef878b4f473a69f6651c55364f44eb94e7d4f1338677e

MD5

672b4551a3c5e275b6797dacf21b1668

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

Release notes

MD5:672b4551a3c5e275b6797dacf21b1668 1. Enhance anti-virus capability 2. S11 user firmware, support both 7007 and 7010 control board 3. Secure firmware with signature, SSH port is closed 4. Few of the miner probably have lower hashrate in low temperature environment

Official source ↗
Version

201812082324

ANTMINER-S11-xilinx-201812082324-autofreq-user-Update2UBI-NF.tar.gz

Download firmware↓ 42.2 MB
Published / updated
2025-05-29
Compatibility
ANTMINER S11
Size
42.2 MB
Check file integrity · SHA-256

SHA-256

e2f57fe7fba079085cf52edb95c2998c024c829292c767816799dfb20d4a6ec3

MD5

af5124c67c74470c5443a023fe69174a

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

Release notes

MD5: af5124c67c74470c5443a023fe69174a S11 User Firmware

Official source ↗

Sources checked 14 September 2026