ASIC firmware downloads / ASIC specifications
ASIC.TOOLS / FIRMWARE
Bitmain Antminer S4+ (2.57Th) 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: BITMAIN Product Manual & Firmware ↗
| Version | Published / updated | Compatibility | Size | SHA-256 | Download |
|---|---|---|---|---|---|
| 20150715SD-S4+-20150715.tar.gz | 2025-05-29 | ANTMINER S4+ | 18.2 MB | 78f4343e374015c65394852b3aea341f7d52a092f3ec5bd299a9e504352adf0fMD5: f1dde66a3982d694b2c38c1a9f15ce7e | Download local verified copy ↓Official source ↗ |
| Release notes: Update: 1.User defined fan speed; 2. Interval of detection time for high temperature protection is 2S after the first alarm; 3. Process optimized of miner's status; MD5: F1DDE66A3982D694B2C38C1A9F15CE7E | |||||
Verify the downloaded file with SHA-256 before uploading it to a miner.
Sources checked 14 September 2026