Update the corresponding firmware to solve the operating faults of Antminer S21, S21 hyd, T21 and other miners. By flashing the firmware and programming the correct operating procedures, you can effectively extend the service life of the miner and obtain more mining profits.
Miner model | File name | File size | Description | Publish date | Action |
Antminer S21 XP Hydro firmware | Antminer-S21-XP-Hyd.-release-202410111643.bmu | 17.31MB | MD5:d21cffc41fe397a33e05987ee31e571a ANTMINER S21 XP Hyd. initial firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-10-21 | Download |
| Antminer S21 XP firmware | Antminer-S21-XP-AML-release-202411051642.bmu | 15.21MB | MD5:4c16363cc2487de493ae0cc1cd9086d0 ANTMINER S21 XP initial firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-11-18 | Download |
| Antminer S21Imm firmware | Antminer-S21Imm-AML-release-202408061155.bmu | 14.42MB | MD5:92f7f01581c49f0d3742b2ce4029d991 ANTMINER S21 lmm. initial firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-08-12 | Download |
| Antminer S21 firmware | Antminer-S21-AML-release-202410111634.bmu | 14.44MB | MD5:764c68de1f07c1d5597e8a38e0e37a15 Updates: 1. Implemented slight frequency reduction and other optimization strategies for machines that may shut down due to high temperatures. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-11-19 | Download |
| Antminer T21 firmware | Antminer-T21-merge-release-20240926105845.bmu | 43.89MB | MD5:644f1f1ec6d8b9adfec1db0570def3fd Updates： 1. Implemented frequency reduction and other optimization strategies for machines that may shut down due to high temperatures. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-10-23 | Download |
| Antminer S21 Hydro firmware | Antminer-S21-Hyd.-release-202405191051.bmu | 17.31MB | MD5:524dcfdced9927b89d28e637b100354a Updates： 1. Optimized firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-05-22 | Download |
| Antminer S21 Pro firmware | Antminer-S21-Pro-AML-release-202408281552.bmu | 15.21MB | MD5:e4a459c56454452e6639a18fff901323 Updates： 1. Optimized firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-09-02 | Download |
Firmware download for SD card:
Miner model | File name | File size | Description | Publish date | Action |
| Antminer S21 firmware | S21-aml-flashcard.zip | 24.50MB | SD firmware for S21 AML control board. After flashing the firmware with the SD card, please upgrade to the latest official firmware. | 2024-02-26 | Download |
| Antminer T21 firmware | t21-flash-card-7007.zip | 27.11MB | T21 7007 Flash card package. | 2024-03-28 | Download |
| Antminer T21 firmware | t21-flash-card-aml.zip | 24.49MB | T21 amlogic Flash card package. | 2024-03-28 | Download |
| Antminer T21 firmware | t21-sd2nand-cvctrl-202403221534.tar.gz | 16.84MB | T21 cvctrl Flash card package. | 2024-03-28 | Download |
| Antminer S21 Hydro firmware | S21-hyd-flash-card-7007.zip | 27.13MB | S21 Hydro 7007 Flash card package. | 2024-04-09 | Download |
[email protected] [email protected] [email protected] [email protected]
China Mainland Hong Kong 
Business Hours: (GMT+8) 08:30-20:00 Mon to Sat 
Company Phone: +86-023-72227777