VNISH Firmware for Antminer S19j Pro — Overclocking & Undervolting

VNISH FIRMWARE VERSION 1.3.6 + monitoring

There is no hotel fee in version 1.3.6 

We can add your personal Dev fee and proxying your Fee to any pool, similar to hotel fee option. 

Build firmware for free

TO UPDATE TO THE LATEST VERSION, YOU CAN USE VNISH MONITORING TOOL. THE UTILITY SCANS YOUR NETWORK, DETECTS THE MINER MODEL AND INSTALLATION TYPE, AND AUTOMATICALLY UPDATES YOUR VNISH FIRMWARE TO THE LATEST VERSION. INSTALLING VNISH FIRMWARE FOR ANTMINER S19J PRO:

Download the VNISH firmware for Antminer S19j Pro from the “NAND Download Install” section for your miner model and control board.
Installation is only possible using the HASHCORE TOOLKIT utility. Download the utility and carefully read the installation instructions.

If you don’t know which control board is installed on your Antminer S19j Pro:

We recommend downloading the HASHCORE TOOLKIT (Windows) + firmware bundle.
The utility will automatically detect your miner model and control board type, then install the VNISH firmware correctly and safely.

Specifics for the CVitek board:

After rebooting a miner with a CVitek board, the stock firmware may revert.
To restore the VNISH firmware, scan the network with the HASHCORE TOOLKIT or use phoenix-scanner in the background. The VNISH firmware will be restored automatically.

This guide helps you download, install and update VNISH firmware for Antminer S19j Pro, minimize the risk of installation failures and improve miner stability. VNISH firmware provides tools for Antminer S19j Pro overclocking, undervolting and monitoring.

⚠️ATTENTION: Check the stock firmware date. Firmware can be installed using the Toolkit 1.7.4 or newer on stock firmware with any date.

If you have BITMAIN firmware installed from 2024 year that cant be flashed to vnish and you see the ssh error, you can update the firmware using the stock web update file on a newer date. If you cannot find the stock update file for your model, you will need to downgrade the firmware using an SD image.

Amlogic (a113d) control boards with firmware from september 2025 and newer cant be downgrade using sd image.
Instructions for unlocking AML control boards to install VNISH firmware:
➡️ UNLOCK-AML

Resources and Utilities

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Firmware Vnish for Bitmain
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