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The World’sLeading Firmwarefor ASIC Miners

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Trusted 26,4%of mining market

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300 Professional Miners

VNISH gives them a proven way to squeeze more profit from every watt: advanced auto-tuning, safe overclock and low-power modes, rapid rollout across entire farms

0Years of
Experience

Million
Devices0.0

ExperienceVNISH Firmwarein Action

Test the interface. Explore every setting. See how simple professional mining management can be. Our live demo mirrors the real firmware environment – full dashboards, tuning controls, voltage profiles, fan curves, security settings,and fleet-level tools. No installation required

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Advantagesof our Firmware

Boost Hashrate by 24%

Get more out of your existing hardware without risky experimentation.

  • Intelligent auto-tuning of frequencies and voltages for optimal performance
  • Per-chip optimization based on real-time operating conditions
  • Automatic profile switching based on temperature to keep performance stable

Save on Energy 

Cut unnecessary power costs and extend the life of your equipment.

  • Automatic shutdown of power consumption if internet connection or pools fail
  • Smart power-saving logic based on actual load and temperature
  • Longer hardware lifespan thanks to stable, optimized operating parameters

Mass Management 

Manage hundreds or thousands of devices as easily as one.

  • Mass installation on an unlimited number of miners within a single network
  • Bulk password updates and SSH port configuration
  • Fast, unified configuration of the entire farm from a single control point

Protection and Stability 

Keep your farm running safely, even under heavy load and harsh conditions.

  • Power limit controls to protect equipment from overload
  • Automatic voltage adjustment at high temperatures
  • SSH configuration options and improved network-level security
  • Flexible settings to manage miners and quickly resolve operational issues

DownloadYour Firmware

Version
Model
Type
Method
firmware
Firmware Vnish for Bitmain
Manufacturer ASIC: Bitmain
Cryptocurrency: Litecoin (LTC)
Build Date: 1970-01-01T00:00:00.000Z
Download InstallDownload Update
  • Newly Antminer supported models: T19 Pro Hydro, S19j XP, S19e XP Hydro, S19 Pro Hydro (120 chips), S19 XP+, S19 XP+ Hydro, U3S19XPH, S21 XP, S21e Hydro, S21+, U3S21EXPH, S21+ Hydro, S21 Immersion, S21 Pro, S21 XP Hydro, S21 XP Immersion, T21 with Xilinx and L9
  • Antminer submodel support added for: S19 XP: BHB56802,BHB56806 S19j XP: BHB56804- S19k Pro: BHB56907 S21 Hydro: HHB68601, HHB68502, HHB68503, S21+ Hydro: H6HB70702, H6HB70704 S21+: A3HB70702, A3HB70703 S21 Pro: A3HB70603 S21 XP: A3HB70502, A3HB70503 T21: BHB68701-, S21: BHB68606, BHB68603P, BHB68603-
  • Added ability to edit tuned presets
  • Chinese language now available in dashboard
  • New detailed graph for power consumption
  • Shows miner consumption and hashboards from presets (for models without PSU consumption reporting)
  • Water temperature widget for Antminer S19 Pro Hydro and S19 Pro Plus Hydro (inlet/outlet)
  • Miner Initialization: Quick pause during initialization
  • PSU temperature monitoring support
  • Automatic preset retuning after repeated “Chain Break Detected” errors
  • Comprehensive error system with detailed error codes
  • Updated voltage limits for Antminer T21
  • Automatic shutdown on any chain error for models without PIC controllers
  • Charts now persist after reboot
  • Preset Switcher options: Ignore fan speed and Auto-lower top preset based on temperature
  • Chip Throttling: Available for x21 series (excluding S21 Pro)
  • Sensor Handling: Option to ignore chip temperature sensors (Antminer L9, Antminer S21, Antminer T21, Antminer S21 Imm, Antminer S21 Hydro)
  • Sensor Handling: Option to skip broken temperature sensors
  • Startup Control: Configurable delay before mining starts (reduces startup power spikes)
  • Startup Control: Configurable minimum number of operational boards required to start mining
  • Dashboard now auto-detects system/browser language at first launch
  • Various UI and UX enhancements for improved usability

How
to Install

Get up and running in a few
minutes, with or without our help

Self-Installation

  • Download the firmware
    for your ASIC model from our website
  • Follow the step-by-step instructions in the installer or video guide
  • Apply settings, reboot the device, and start mining on VNISH

Prefer a guided setup?

Contact our support team
and we’ll help you install and configure VNISH firmware for your specific hardware and mining setup

Video
Tutorials

Watch real installations, tuning examples, and best practices from the VNISH team.
Browse quick, focused video guides: from first-time installation to advancedauto-tuning, profiles, and farm-level management

Youtube Channel
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Video 1
Video 2
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Eventsand Media

event
24.03-26.03, Moscow, Russia
Bradley GBD
Frmware is stable, well-optimized, and we've seen a boost in hashrate... Issues resolved fast and professionally.
Michael Turner
Chief Technology Officer
Big thanks to Sasha et al. You guys rock. Fantastic support + have saved us a great deal. See you in Hong Kong.
David Reynolds
Director of Mining Operations
Moved over from stock firmware back in fall. Our fleet performance has improved massively across all key metrics. Power efficiency, stability, and overall control are on a completely different level. The support team feels like an extension of our own engineers. Special thanks to Vlad and Evgeniy for bearing with us through the tests!
Jason Miller
Head of Infrastructure
Long-time client (took some convincing to get us to move from a competitor back in 2022) – currently running Vnish on our S19 XP / S21 fleet in Finland – does what it says on the tin. Haven't found better fees, efficiency or support with any other provider.
Robert Klein
Chief Executive Officer
What impressed us most about Vnish is their technical understanding of our hardware. Every recommendation we get is practical and grounded in data. With their firmware, we achieved better efficiency without compromising stability. Wouldn't go back.
Andrew Collins
Lead Systems Engineer
Performance, reliability, and fast support. A very strong, reliable partner. Make sure to go direct for best dev fees
Kevin Brooks
Managing Director
Thank you Bradley. Our experience with Vnish has been extremely positive. Technical issues are handled quickly, updates are well-tested, and the efficiency gains are consistent.
Li Wei
Chief Operations Officer

RecognizedWorldwide.Awarded and trustedby the globalmining community

Independent research groups, industry events, and miner communities consistently rank VNISH as the most influential firmware project in the ASIC ecosystem

#1 Firmware Provider

#1 Firmware Provider –
26.4% Global Market Share

Cambridge Research 2025. Independent analysis confirms VNISH as the most widely used third-party ASIC firmware worldwide

#1 Firmware Provider

Mining Technology
of the Year 2025

Blockchain Life Award 2025. Recognized as the most impactful mining technology at the industry’s
leading global conference

#1 Firmware Provider

Top Developer Support 2024

Community Awards 2024.
Voted by miners for exceptional responsiveness, updates, and long-term reliability

OfficialDistributors

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FAQ

The ASIC mining firmware contains low-level instructions that govern the interaction of the miner's hardware components. Additionally, the firmware handles the miner's communication with pools through various data exchange protocols and monitors the mining process in specialized programs using built-in API functions. Provides advanced security options and virus protection.
ASIC mining firmware is tailored to the specific hardware configuration of the ASIC miner and the cryptocurrency algorithm it is designed to mine. It includes instructions for managing various aspects of the hardware, such as regulating voltage, controlling clock speeds, managing thermal conditions, and coordinating communication with mining pools and blockchain networks.
By using the Vnish ASIC mining firmware, miners can optimize the performance of their hardware and improve the efficiency of their mining operations. This can result in higher mining profits and a more stable mining experience.
Vnish ASIC mining firmware is highly customizable. Miners can adjust a wide range of settings, such as clock speed, voltage, and fan speed, to optimize performance and efficiency. New generation of firmware contain presets for various combinations of the mining process.
All available actual Vnish firmware can be downloaded from the official website of the developers or the websites of their partners. The official website is vnish.com.
The installation process for ASIC mining firmware varies depending on the specific firmware being used. Generally, it involves downloading the firmware file, flashing it onto the hardware, and configuring the firmware settings. More detailed information can be found on the installation guide page.
It is generally recommended to update ASIC mining firmware every few months to ensure optimal performance and security. It is important to review the release notes and potential risks before updating and to back up critical data before performing a firmware update.
The Vnish firmware installation process is designed to be safe. If something goes wrong during the update, it should not result in hardware damage or data loss. If an issue does occur, it may be necessary to contact Vnish customer support or seek assistance from the Vnish firmware community.
In general, it is not recommended to downgrade ASIC mining firmware as it may introduce compatibility issues. If downgrading is necessary, carefully review the instructions and back up any critical data before proceeding.
Most third-party mining firmware requires complex rollback procedures. Vnish firmware allows rollback to the stock firmware version in one click directly from the miner menu.
After installing Vnish firmware, the security level of the ASIC miner is increased. Additional features include SSH protocol control and advanced virus protection. These improvements significantly reduce potential security risks compared to stock firmware.
You can verify the integrity of the firmware image by checking its MD5 checksum and ensuring it matches the checksum provided on the website.
Yes, you can become a Vnish partner and join the referral program. More information is available via the official partner link.

a) What does the name of the firmware file mean?

The firmware file name contains information about the brand or partner, miner model, control board type, installation method, firmware version, and file type (install or update). This helps users select the correct firmware for their equipment.

b) How to choose the Vnish firmware suitable for my mining equipment?

Check your miner model and control board type on the device label. Then visit vnish.com and select the appropriate firmware from the supported model list, which currently includes 23 Antminer x19 series modifications.

c) What is DevFee and how does it work?

DevFee is a developer commission of 2–2.8% of hashrate redirected to the developers' pool. The exact value may vary in real time but remains within the limits specified in the agreement.

d) What is Autotune and how it works?

Autotune automatically adjusts voltage and frequency for each individual chip. Higher quality chips receive higher frequencies, while lower quality chips receive lower frequencies to achieve optimal performance.

e) How can I get maximum hashrate with Vnish firmware?

Maximum hashrate can be achieved by manually adjusting voltage and frequency or using tested performance profiles. Profiles are available for air and liquid cooling setups, as well as different power supply configurations.

f) How can I reduce power consumption with the Vnish firmware?

Power consumption can be reduced using manual control mode or preset profiles designed for optimal or reduced power usage. Reference tables for hashrate and power consumption are available for each miner model.

g) How long time takes Autotune process, is any indication when it finish?

The Autotune process typically takes 3–4 hours and does not require additional reboots. Progress is shown in the status bar and browser favicon. Once completed, the profile is marked as tuned.