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ASIC.TOOLS / FIRMWARE
Bitmain Antminer S9 (12.5Th) 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
10 versionsExact model Official source: BITMAIN Product Manual & Firmware ↗
| Version | Published / updated | Compatibility | Size | SHA-256 | Download |
|---|---|---|---|---|---|
| s9_fix_upgrade.tars9_fix_upgrade.tar.gz | 2025-05-29 | ANTMINER S9 | 38.9 MB | — | Official listing; local copy unavailableOfficial source ↗ |
| Release notes: If S9 miner can not upgrade new fw, please use upgrade this special package to fix the file system, then upgrade new fw again. | |||||
| 201908121158ANTMINER-S9-c5-201908121158-autofreq-user-Update2UBI-NF-sig.tar.gz | 2025-05-29 | ANTMINER S9 | 22.9 MB | 3bc308460e3889e7498c0a52ddcf6a163414f45c29d0da44be4e8870af0d6242MD5: 10d9d2a114a735ff256a9956f0189bab | Download local verified copy ↓Official source ↗ |
| Release notes: MD5:10d9d2a114a735ff256a9956f0189bab 1.Enhance anti-virus capability 2.S9 user firmware. It is only for C5 control board, not for 7010 xilinx control board. 3.Secure firmware with signature, SSH port is closed. | |||||
| 201907311618ANTMINER-S9-xilinx-201907311618-autofreq-user-Update2UBI-NF-sig.tar.gz | 2025-05-29 | ANTMINER S9 | 41.5 MB | fda5e5a62cb3be04e1344a2ae7682b66c57f822c6ef02d81bff0dc1d50d3f0a9MD5: f07a8ce195d421f9b69db02aed83a460 | Download local verified copy ↓Official source ↗ |
| Release notes: MD5:f07a8ce195d421f9b69db02aed83a460 1. Enhance anti-virus capability 2.S9 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. | |||||
| 201907302037ANTMINER-S9-xilinx-201907302037-autofreq-user-Update2UBI-NF-sig.tar.gz | 2025-05-29 | ANTMINER S9 | 42.2 MB | 2cd6e5142d82950083d3789b8b14d3d045aed238d65acbeb73d3ab8f9c55735fMD5: fc658783843d512b81efc8ff56db8a3c | Download local verified copy ↓Official source ↗ |
| Release notes: MD5:fc658783843d512b81efc8ff56db8a3c 1. Enhance anti-virus capability 2.S9 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. | |||||
| 201812051512ANTMINER-S9-all-201812051512-autofreq-user-Update2UBI-NF.tar.gz | 2025-05-29 | ANTMINER S9 | 60.9 MB | 95667e8c4ec66f5e630ad17ce162b67998487e98a44a70031474bc8bd462f19dMD5: 0b9a8134c5c2cae1f7723aad96df4867 | Download local verified copy ↓Official source ↗ |
| Release notes: MD5：0b9a8134c5c2cae1f7723aad96df4867 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 | |||||
| 20181102ANTMINER-S9-LPM-20181102.tar.gz | 2025-05-29 | ANTMINER S9 | 838 KB | 56a9d0f4ce5b39bb16d8b5dfeebd2c1af14faef4c4aa0e736f42ae126b420ee8MD5: a14dc339fd002127d8adb006bbf1f647 | Download local verified copy ↓Official source ↗ |
| Release notes: MD5:A14DC339FD002127D8ADB006BBF1F647 1. Not support C5 control board. 2. Reduce power consumption. 3. Automatically abort the upgrade if the criterion is not met. 4. Please revert to the previous version if the miner is not stable after upgrade. 5. Fixed the hashrate dropping issue | |||||
| 201711171757ANTMINER-S9-all-201711171757-autofreq-user-Update2UBI-NF.tar.gz | 2025-05-29 | ANTMINER S9 | 60.7 MB | — | Official listing; local copy unavailableOfficial source ↗ |
| Release notes: * Support S9 miners except S9-11.85T，12.93T，14T with fixed frequency * Remove post mac address and remote stop mining interface * Fix a bug of memory leak. * Fix to support keep config when upgrade * Remove unused *.bitmain.com url strings in binary file in fw. | |||||
| 201705031918ANTMINER-S9-all-201705031918-550M-user-Update2UBI-NF.tar.gz | 2025-05-29 | ANTMINER S9 | 60.7 MB | — | Official listing; local copy unavailableOfficial source ↗ |
| Release notes: * Support S9 with fixed frequency 550M * Remove: post mac and stop mining interface * Fix a memory leak bug. | |||||
| 201705031858ANTMINER-S9-all-201705031858-600M-user-Update2UBI-NF.tar.gz | 2025-05-29 | ANTMINER S9 | 60.7 MB | — | Official listing; local copy unavailableOfficial source ↗ |
| Release notes: * Support S9 with fixed frequency 600M * Remove: post mac and stop mining interface * Fix a memory leak bug. | |||||
| 201705031838ANTMINER-S9-all-201705031838-650M-user-Update2UBI-NF.tar.gz | 2025-05-29 | ANTMINER S9 | 60.7 MB | — | Official listing; local copy unavailableOfficial source ↗ |
| Release notes: * Support S9 with fixed frequency 650M * Remove: post mac and remote stop mining interface * Fix a memory leak bug. | |||||
Verify the downloaded file with SHA-256 before uploading it to a miner.
Sources checked 14 September 2026