Get verified build
Miner modelAntminer S21+ Hydro
PlatformCV
Installation methodNAND
Version1.3.5 · Stable
SHA-2561b241e96879646b75cb7338743f1b19f9c2b625b0f7693714dd7dabfcc5e273c
Controlled installation sequence
- Confirm the exact Antminer model and control-board platform.
- Record the current firmware, settings, hashrate, power, temperatures and pool configuration as a baseline.
- Download the build from this page and verify its SHA-256 checksum locally.
- Test on one miner within safe power and cooling limits, with a rollback route ready.
- Observe stability and expand only after the success criteria have been met.
A firmware change can affect manufacturer warranty, power draw, thermal behavior and hardware life. Use settings appropriate to your power supply, cooling and operating limits.