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-202404021047.bmu | 14.43MB | MD5:81d890c78970cbba40f6b89e31afbe10 Updates： 1. Optimized firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-04-11 | Download |
| Antminer T21 firmware | Antminer-T21-merge-release-20240409062002.bmu | 43.85MB | MD5:ee72c827a39322cfd4ba4ccd1d38ce81 Updates： 1. Optimized firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware. | 2024-04-12 | Download |
| Antminer S21 Hydro firmware | Antminer-HHB68XXX-release-202403281200.bmu | 17.32MB | MD5:b0ab50621f78ec7f15d26c365c7bbb32 ANTMINER S21 Hydro initial firmware version. Please make sure the miner type and firmware type are the same before upgrade the miner firmware. | 2024-04-09 | 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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