01 / FIRMWARE LAYER
CORE / VNISH
Make the device work harder for every watt
Profiles, voltage and frequency move together. Auto-tuning finds more profitable performance without blind overclocking
Enter the device →VNISH GLOBAL · THE OFFICIAL HOME OF VNISH FIRMWARE
Every fourth miner
runs on VNISH
Earn more from every ASIC you already own
*Independent Cambridge study: 26.4% of surveyed mining hashrate, June 2024
Professional mining firmware, built to turn existing hardware into more profitable hashpower
47exact models
75canonical routes
10language paths
300+partners
ENTER THE CONTROL LAYER
START WITH YOUR HARDWARE
Start with the hardware you already own
Test one device or prepare a fleet pilot - the same professional firmware at the right scale
Design the pilot
02 / FLEET & HOSTING THE SAME CONTRACT AT SCALE
Plan fleet rollout
Prove one cohort, then deploy across the site in visible waves with a clear stop at every stage
Design the pilot →LIVE PROFIT CONTROL
See exactly where every watt becomes revenue
Control hashrate, efficiency and temperature live. Tune for profit without losing sight of stability
VNISH GLOBALPOWERING VNISH WORLDWIDEMonitoring
▦ Dashboard
Settings
⛏ Mining
⚙ System
🛟 Tech. support
⇪ Firmware update
Hashrate
233.12
Current: 234.06 · TH/s
Temperature
38° - 64°
Board: 23° - 49° · °C
Power
4318
Estimated data · W
Errors
0%
0 H/s
Performance ⚡ tuned
4300 watt ~ 233 TH
Efficiency: 18.5 J/TH · Autoswitch: disabled
Hashrate 1h · 12h · 24h
10:00 · 12:00 · 14:00 · 16:00 · 18:00
Temperature 1h · 12h · 24h
16:00 · 20:00 · 00:00 · 04:00 · 08:00 · 12:00
Pools
btc.vnishpool.com:3333524K diff195 accActive: 16ms
btc.vnishpool.com:443131K diff0 accAlive
btc.vnishpool.com:25- diff0 accOffline
Fans Mode: Auto · Fan duty: 72%
Fan 17590 RPM ✻
Fan 28000 RPM ✻
Fan 38000 RPM ✻
Fan 47710 RPM ✻
Board 1 ↗
77.64 TH/sHR (99.72%)0.00 H/sErrors38-64 °CTemp678.23 MHzFreq15.03 VVoltage108chips good
Board 2 ↗
77.91 TH/sHR (100.04%)0.00 H/sErrors40-63 °CTemp684.02 MHzFreq15.03 VVoltage108chips good
Board 3 ↗
77.57 TH/sHR (98.42%)0.00 H/sErrors39-64 °CTemp681.87 MHzFreq15.03 VVoltage108chips good
⌨ LogsAntminer T21v1.3.4
SIX CONTROLS · ONE PROFIT SYSTEM
More profitable mining is a system
Firmware, hardware identity, tuning, cooling, rollout and recovery work together - not as disconnected tools
02 / HARDWARE MATCH
MODEL + BOARD
The right firmware for the exact device
The model and control board resolve together. You get the build made for that exact hardware
Resolve exact hardware →03 / PERFORMANCE
TH/s · W/TH
Choose what earns more today
Choose efficiency, balance or maximum output. Every profile stays visible and reversible
See the control loop →04 / THERMAL & FAN
°C · FAN · V
Push performance without losing the device
Live temperatures and fan behaviour remain in view. Protection acts before heat becomes downtime
Touch the control surface →
05 / FLEET ROLLOUT
PILOT → SCALE
Scale the result, not the uncertainty
Test a named cohort, then deploy in observable waves. You can hold or stop at every stage
Build a pilot brief →06 / RECOVERY & SUPPORT
A ROUTE BACK
A clear way forward. A clear way back
Every install keeps a documented recovery path. Support stays with the device from first test to full rollout
Open verified route →VNISH GLOBAL · TEN LANGUAGE EDITIONS
The VNISH story, ready for any room
Ten equal language editions for operators, partners and investment teams
Find the right firmware for your Antminer
CATALOG CONNECTINGFamilyModelBoardRoutePassport
POPULAR ROUTES jump straight to a common device
Choose the family. The catalog will narrow itself to exact hardware
EXACT ROUTEVERIFIED BUILD PASSPORT
- Board
- Install method
- Channel
- File / size
- Route
- SHA-256
Why this route?
Identity, board and published route resolved as one contract
NOT SURE WHICH BOARD IS INSIDE?
Open the board identification table →
Four boards cover the whole Antminer range, and each takes a different file. AML sits next to the SD slot, XIL is most common on S19, CV on L9, T21 and later, BB is the separate BeagleBone card. Unclear? Send a board photo to support
Official VNISH firmware. Ready to install
FREE OF CHARGEdownload and test on your devices at no cost
One VNISH cockpit. Every device
Monitor, tune and act from phone, tablet or desktop. The controls stay familiar wherever you work
Prove the gain on one miner first
One device is enough to understand every advantage of official VNISH firmware. You will see the gain on your own floor, at your own power price, on hardware you already own.
EVERY GATE IS A DECISIONPASSevidence supports itHOLDevidence is missingSTOPevidence says no
ENTRY / LAYERED CONTROL PATHS
Choose your control path
02 / FLEET & HOSTING
Scale the decision, not the risk
Baseline first, pilot cohort next, stop gates before every wave
BASELINEPILOT COHORTSTOP GATESNAMED OWNER
Design the pilot
FLEET PERFORMANCE · CONTROLLED ROLLOUT
Turn one proven result into fleet-wide profit
Deploy the right build in controlled waves, with one view of every device and support ready when the site needs it
TOP DEVELOPER SUPPORT
COMMUNITY AWARDS · 2024
SUPPORTED HARDWARE / PUBLISHED SCOPE
47 exact models.
One verified way through
Touch a device to carry its identity into the route resolver. The spectacle ends where the exact hardware contract begins
Reading the published catalog…
Open the raw catalog ↗ECOSYSTEM / THREE DISTINCT ROLES
One global ecosystem
Install our official firmware from whichever ecosystem resource suits you best
VNISH.Global
Strategic context, exact hardware routes and governed fleet rollout
vnish.globalOpen the control layer ↗ DISTRIBUTION / INSTALLROI ASIC
Official firmware distribution, guided installation and commercial support
roiasic.comStart with ROI ASIC ↗ STORY / CULTUREVNISH.Ninja
Missions, craft and the culture behind verified ASIC performance
vnish.ninjaEnter VNISH.Ninja ↗VNISH HERITAGE · SINCE THE FIRST ANTMINER GENERATION
VNISH is a critical part of the world's decentralised bitcoin mining infrastructure
We have been inside every Antminer generation
ACTIVATION / BEFORE THE FIRST INSTALL
Questions and answers
Ten questions that come up before every rollout, answered the way we would answer them on a call. Open one and the doors open with it
Is VNISH firmware free?
The build is FREE OF CHARGE to download and test. VNISH runs on a small share of active hashrate that funds development. It is charged only while the firmware actually runs - no installation fee, no penalty if you stop - and it remains visible in the dashboard. On a well-matched ASIC the extra income normally outweighs this share several times over. That fee is what funds new releases for each new hardware generation, the support behind them and the ecosystem the team has been building since 2017
What do I actually gain?
Either more hashrate for the same room, or the same hashrate for less power - you choose which, per device, from the profiles. A T21 at stock does 190 TH/s on 3610 W. The same unit tuned runs 233.12 TH/s on 4318 W: 22.7% more hashrate for 19.6% more power, with efficiency improving from 19.0 to 18.5 J/TH. Older hardware usually gains more, because it left the factory with more headroom on the table
Which devices are supported?
47 exact Antminer models and 75 published builds: the S21 family including Hydro and Immersion, S21+, S21 Pro, S21 XP, T21, the whole S19 and T19 range, plus L7 and L9 for Scrypt. Four control boards are covered - Amlogic, Xilinx, CVITEK and BeagleBone - and the board is what decides your file. The coverage map on this page is generated from the same catalog the resolver reads
How long does the install take?
About fifteen minutes per device, over the network. The toolkit finds the miner on the subnet and writes to NAND - for most boards there is no SD card and no need to physically touch the unit. Plan a tuning window after the update: presets were fully reworked for L9, S19 XP+, S21, T21, S21 Hydro, S21+, S21 Pro and S21 XP, so those devices want a retune rather than the old profile
Can I go back to stock?
Yes. Every build is reversible: a built-in rollback returns the miner to stock Bitmain firmware. As a rule the warranty is preserved, since no traces are left behind - but just in case, check the relevant terms of Bitmain and your direct vendor before installing
My miner shipped with 2024 or newer stock firmware. Anything different?
Yes. Stock firmware from March 2024 onward carries Bitmain signature locks, so those devices install only through the toolkit flow - version 1.7.1 or later. Amlogic units that left the factory from September 2025 add a USB lock on top of that. Both cases are covered step by step in the recovery guide, and both are routine once you know which one you are looking at
How do I know the file is genuine?
Every build is published with its SHA-256 next to it, and the same hashes sit in a public sums file. Download, hash the archive on your own device, compare. There is a verifier on this site that does the comparison in your browser without uploading anything. One origin, no mirrors - if a file reached you from somewhere else, the hash is how you find out
Do you need access to my devices?
Installation starts from your own network and does not require routine remote access from VNISH. Remote support tools are used only for sessions you request. For the exact behaviour of a given release, review the current data and network notes with your engineer
Can this run across a whole site?
That is the normal case, not the exception. Baseline the fleet, prove the change on a named pilot cohort, then propagate in waves with stop gates between them. The toolkit installs and applies profiles in batches, and every wave has a named rollback owner. A mixed floor is fine: each hardware identity resolves to its own exact build
What if a device goes silent?
A controller that stops answering is recoverable in the large majority of cases. Write a recovery SD card, boot the unit from it and restore the controller - the recovery guide covers the tool, the image and the lock cases. If the device is still dark after that, an engineer will go through it with you rather than leaving you with a manual
BLOCKCHAIN LIFE 2025 · MINING TECHNOLOGY OF THE YEAR · VNISH
SINCE 2017
YOUR NEXT DECISION
One device or one thousand. Start with the exact route
PRIORITY CHANNEL / LINKEDIN
LinkedIn: the professional line
The largest VNISH community in the world's leading professional network. Separate pages for all three ecosystem brands: release announcements, engineering notes and the partnership door