Choose the exact miner model and controller on this page first. Download the matching archive and keep it as .tar.gz.
Identify your control board
Look for the Ctrl_Board sticker on the miner’s case. These two Antminer L9 examples have different boards: amlogic means Amlogic (AML), while CV1835 means CVitek (CV).
The control-board type is also shown in HashCore Toolkit. Scan your network, find the miner by its IP address and check the board label in its row: AML, CV, XIL or BB. HashCore Toolkit
Before you begin
- Confirm the complete model name, control board and currently installed firmware version or build date.
- Save your pool and network configuration. Check the existing warranty terms before changing firmware.
- Use your own trusted local network and stable power and cooling. Start with one miner, not an entire farm.
The screenshots are examples: use your own IP range and the version in your downloaded filename. Button labels may differ between Toolkit versions.
Create a network group
Open HashCore Toolkit on a computer connected to the miner network. On the Network groups screen, click New group.
Add your IP range and scan
Enter a group name. Click Add IP range, enter the start and end addresses of your actual subnet, then click Save and scan. The 192.168.1… range shown here is only an example.
Select the correct miner
In the scan results, check the model and controller against your selected build. Tick the checkbox beside the device you intend to work on. A device appearing in the list does not confirm firmware compatibility.
Open the firmware commands
Open the device menu (⋮), choose Firmware, then Install firmware. In earlier Toolkit versions the route is All Commands → Install firmware. For an existing compatible VNISH installation, use Update firmware with the matching update archive.
Choose the archive and check the fields
Click Select and choose the folder containing the .tar.gz archive; do not unpack it. Set the build name and version from that filename: cryptotechfirmware and v1.3.6 in this screenshot are examples. Keep automatic model detection. Check the exact model, controller and stock-build requirements before clicking Install firmware. If Toolkit finds no compatible device, stop and ask for help.
Check the result
Follow progress in Operations. After the device restarts, open its web interface and check the firmware version, pool settings and operation. Keep power and network connected during installation.
VNISH firmware
Choose your exact miner and control board to find a listed VNISH build. Check the installation requirements before downloading.
Opens WhatsApp with a message you can edit before sending.
What VNISH adds to your ASIC
Choose your miner- Hashrate tuning
- Autotune adjusts chip frequencies and voltages to get more from compatible hardware.
- Power efficiency
- Choose a lower-power profile when reducing electricity use matters more than maximum hashrate.
- Manage miners in batches
- Use VNISH’s management tools to install firmware and apply settings to multiple miners on the same network.
- Thermal and power controls
- Set power limits and use temperature-based profile switching on supported builds.
Features vary by model and build. Hashrate and power draw depend on the device, cooling and settings. VNISH feature overview
Choose your miner
Current stepSelect the series, then the exact model printed on your miner.
Identify the control board
Complete the previous stepChoose your miner first. This step shows the control boards with listed builds for that model.
Review and download
Complete the previous stepChoose the model and control board before reviewing an available build.
These partner builds use a 2% hashrate DevFee while running. Downloads are free.
Firmware downloads come directly from Anthill. This website does not store firmware files or install them on your miner.
Source metadata checked
Open the source catalogueDownload utility files directly from the developer’s official source.
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Open the source catalogue