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 firmware | Antminer-S21-AML-release-202407111638.bmu | 14.43MB | MD5:01599c48892c082296affe5ca0315015 Updates： 1. Optimized firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-07-29 | Download |
| Antminer T21 firmware | Antminer-T21-merge-release-20240821015400.bmu | 43.89MB | MD5:6bdd711b091e47f88eec6497feccdb11 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 |
| 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 |
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