Antminer Firmware Download

Use the download table on this page. Pick your model, then grab the Install file if the miner is still on Bitmain stock, or the Update file if it already runs this custom firmware. S21, S21 Pro, S19 XP, S19j Pro, and T21 are in the list.

Both. The S19, S19j Pro, and S19 XP files replace stock Bitmain firmware with autotune and undervolt builds. The same page hosts S21 and T21 downloads so you are not hunting separate vendor archives.

Custom Antminer firmware is optimized software that replaces the stock firmware on your ASIC miner. It unlocks features like autotuning, overclocking, and undervolting to increase hashrate by 10-25% while reducing power consumption.

Yes, our firmware is thoroughly tested and used by thousands of miners worldwide. It includes safety features like temperature monitoring and automatic shutdown protection. Always backup your original firmware before upgrading.

We support all major Antminer models including S21, S21 XP, S21 Pro, T21, S19 XP, S19 XP+, S19j Pro, S19k Pro, S19 Pro, S19j+, T19, and many more. Check the download table for the full list.

Download the firmware for your model, access your miner's web interface, go to System → Upgrade, upload the firmware file, and wait for the installation to complete. The miner will reboot automatically.

Install firmware is for miners running stock firmware - it performs a clean installation. Update firmware is for miners already running our custom firmware - it preserves your settings while updating to the latest version.