Bitmain Antminer S9i (14Th) 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

6 versions

Exact model Official source: BITMAIN Product Manual & Firmware ↗

Version	Published / updated	Compatibility	Size	SHA-256	Download
fix_mac.tarfix_mac.tar.gz	2025-05-29	ANTMINER S9i	181 B	`—`	Official listing; local copy unavailableOfficial source ↗
Release notes: * Fix the MAC address package
201907311618ANTMINER-S9i-xilinx-201907311618-autofreq-user-Update2UBI-NF-sig.tar.gz	2025-05-29	ANTMINER S9i	41.5 MB	`2de6cc311839e74aef07db934adf9b55bdf483ea37ec4590171073e5de46e79a`MD5: a4688cbe77edb7ee0025d10d209356d9	Download local verified copy ↓Official source ↗
Release notes: MD5:a4688cbe77edb7ee0025d10d209356d9 1. Enhance anti-virus capability 2.S9i user firmware. It is only for 7010 xilinx control board, not for C5 control board. 3.Secure firmware with signature, SSH port is closed. 4.You can't upgrade previous secure firmware after using this version.
201907302056ANTMINER-S9i-xilinx-201907302056-autofreq-user-Update2UBI-NF-sig.tar.gz	2025-05-29	ANTMINER S9i	42.2 MB	`ce26abafcffd63a5484cd71b6d2cafe646c0449d9420a94e9e9be6987ea05796`MD5: 4f9712ba068d095e5778f7ce0fd63393	Download local verified copy ↓Official source ↗
Release notes: MD5:4f9712ba068d095e5778f7ce0fd63393 1. Enhance anti-virus capability 2.S9i multi-option user firmware which provides the options that can increase the hash rate or decrease the power consumption. It is only for 7010 xilinx control board, not for C5 control board. 3.Secure firmware with signature, SSH port is closed 4.It is possible to damage the miner if you use a high frequency setting, and also please make sure the miner is in a good situation and the capacity of power supply is enough before you apply a over frequency setting 5.A small number of miners may have low hash rate and instability issue after over frequency. Please use lower over frequency option, or choose "Normal" option, or revert to the previous secure firmware version. 6.You can't upgrade previous secure firmware after using this version 7.Please read the instructions before using the firmware:https://support.bitmain.com/hc/en-us/articles/360023715154 *Please use the firmware in strict accordance with the operating instructions. If the machine is scrapped due to improper use, it will not be guaranteed according to the after-sale policy.
201811301418ANTMINER-S9i-xilinx-201811301418-autofreq-user-Update2UBI-NF.tar.gz	2025-05-29	ANTMINER S9i	41.5 MB	`db33ad139ebfcb7344a257b4fda5976ca21e6a0702c1853c362fab13d4350123`MD5: fb2a59f0bbfabc1d287fbd6eec9bff98	Download local verified copy ↓Official source ↗
Release notes: MD5: fb2a59f0bbfabc1d287fbd6eec9bff98 1. Not support C5 control board 2. Reduce hashrate and power consumption, better power efficiency 3. If the miner is unstable after upgrade. Please close Low Power Enhanced Mode or revert to the previous version
201811071119ANTMINER-S9i-all-201811071119-autofreq-user-Update2UBI-NF.tar.gz	2025-05-29	ANTMINER S9i	61.0 MB	`3fbe3b218a3b57723e0f62091ec3a26ecd6da384607286feec5247b35728cfa9`MD5: 5b07bd845685d81c092a3b0465f24ef1	Download local verified copy ↓Official source ↗
Release notes: MD5:5b07bd845685d81c092a3b0465f24ef1 1. Reduce power consumption. 2. Automatically abort the upgrade if the criterion is not met. 3. Please revert to the previous version if the miner is not stable after upgrade. 4. Fixed the hashrate dropping issue
201805222008ANTMINER-S9i-xilinx-201805222008-autofreq-user-UBI-NF.tar.gz	2025-05-29	ANTMINER S9i	18.9 MB	`—`	Official listing; local copy unavailableOfficial source ↗

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

Sources checked 14 September 2026