Firmware Antminer T21
Firmware Vnish for ASIC
Antminer S21 (XIL - SD, 1.3.4)
- Manufacturer ASIC: Bitmain
- Version: 1.3.4
- Release date: 20.06.2026
Increase ASIC Antminer performance by up to 30%, reduce power consumption, and gain full control over the miner thanks to VNISH's intelligent AutoTune. Download the firmware for free, configure the equipment in a few minutes and choose the optimal balance between the maximum hash rate, energy efficiency and stable operation of the device.
How Install firmware
Download TOOLKIT
Download and install the special software to install our firmware "HASHCORE TOOLKIT". More details
Download firmware VNISH
Download the VNISH firmware installation file for your miner model. You can do this at the top of this page or on the page "Firmware".
Install firmware VNISH
Use the "HASHCORE TOOLKIT" program to install the firmware on your miner. More details
Video tutorial: Firmware installation on ASIC
Step-by-step guide for safely updating your device
Profiles Overclocking
for Antminer T21