VNISH GLOBAL - POWERING VNISH WORLDWIDE
Find my firmware

Academy

Verified VNISH firmware, installation guidance and fleet planning

Start with the right question

Before choosing firmware, separate what the miner shows, what the pool accepts and what is actually known about a build.

  1. Understand the mining stack

    Learn why local hashrate, a share and a block are different observations.

  2. Check what supported means

    Distinguish a catalog listing from a verified route and a measured result.

  3. Choose your build on VNISH Global

    Match the exact device and board, then check the file evidence and terms. An unresolved match means stop and clarify.

GUIDE 01 · HARDWARE IDENTITY

Identify the control board

  1. Record the exact Antminer model from the device label or current UI.
  2. Locate the control-board platform; do not confuse it with a hashboard.
  3. Record AML/XIL/CV/BB and return to the exact-build finder.
Confirm S21 control-board identity with support if the board is unclear
GUIDE 02 · S21 / AML / NAND / 1.3.5

Install VNISH 1.3.5 on an S21

  1. Record the baseline and confirm Antminer S21 + Amlogic (AML).
  2. Download vnish-s21-aml-nand-v1.3.5.tar.gz.
  3. Verify SHA-256 da3d6312be551aeb8af90812dd41567cbaa3b87eb957dc7273414b9efbc1b6d9.
  4. Follow only a tested NAND procedure for this board.
  5. Confirm first boot, pools, board/chip state, errors, temperature and fans.
  6. Keep recovery status visible before changing targets.

Example only for Antminer S21 air-cooled / AML / NAND. It is not a route for Hydro, Immersion, XIL, CV or BB hardware.

Bytes: 21,541,929

Release 1.3.5manifest.jsonSHA256SUMS.txtChoose an exact build

RECOVERY STATUS · Confirm the tested NAND recovery route for the exact board before installation
GUIDE 03 · GOVERNED CHANGE

Run a fleet pilot

  1. Capture a comparable baseline.
  2. Select a limited representative cohort.
  3. Define go, hold and rollback thresholds.
  4. Observe for an agreed window.
  5. Scale only the observed result, or return deliberately.
Build a fleet pilot brief

First boot and observation

Confirm build identity, pools, board/chip state, errors, hashrate, measured power, temperatures and fan/profile state. A universal observation window is not asserted.

Rollback and recovery

Stop → preserve evidence → select the exact recovery route → verify → recover → confirm. Board-specific route data remains unavailable.

VNISH GLOBAL · Reviewed edition ·

From exact hardware to accepted work

Resolve the exact model, variant, cooling class, control board and install method first. Then download the matching archive from this domain and keep its filename, byte size and published SHA-256 with the change record.

How an ASIC Mining Stack Works: Hash, Share, Pool and Firmware

An ASIC receives work from a pool, builds candidate header data and repeatedly evaluates SHA-256. A result below the pool target is a share; only the much rarer result below the network target can become a block. Firmware coordinates the local device, while the pool, Bitcoin consensus and the electrical installation remain separate systems.

Listed, Route-Verified, Installed and Site-Validated Are Different States

A catalog entry is discovery, not installation proof. Route-verified means a specific model, variant, control board, build and install path were checked together. Installed describes one device state; site-validated adds measured operation under stated site conditions. Skipping a state turns uncertainty into an unsafe claim.

Choose an exact buildCheck current build evidence
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