How to use the hub
Start with the model page, confirm the exact control board type, then choose SD or NAND. If the miner is already running VNISH, use the update path instead of a clean install path.
Firmware compatibility hub
VNISH firmware models and install paths
Use this hub to choose the right VNISH guide before flashing. The safest path depends on miner family, control board type, current Bitmain firmware date and whether you are installing from SD card or NAND.
S19 / S21 / T21L7 / L9XIL / AML / CV / BBSD and NAND
| Series | Best guide | Install focus |
|---|---|---|
| Antminer S19 | /antminer-s19/ | Xilinx, Amlogic, Cvitek and BB control boards |
| Antminer S21 | /antminer-s21/ | Amlogic/Cvitek boards, hydro and immersion variants |
| Antminer T19 / T21 | /antminer-t19-t21/ | T19 legacy units and T21 Xilinx/Amlogic installs |
| Antminer L7 | /antminer-l7/ | Scrypt tuning, SD/NAND and fan profile checks |
| Antminer L9 | /antminer-l9/ | L9 Scrypt installs, stock firmware date checks and conservative first tune |
Why model pages matter
Different miner families need different board checks, firmware packages and install methods. Separate guides help you find the right workflow quickly before flashing.
Before you flash
Record current pools, worker names, static IPs and voltage/frequency settings. Keep a Bitmain recovery image available for warranty or failed boot recovery.
Frequently asked questions
Which VNISH guide should I open first?+
Open the page for your miner family, then confirm the exact submodel and control board type before downloading or flashing anything.
Do these pages host every firmware image?+
No. This site is an independent reference hub. VOU files are hosted on this domain, and the manifest lists package URLs and checksums.
Is SD or NAND better?+
SD is best for recovery and testing. NAND is better for permanent production installs after you have confirmed compatibility.
Related VNISH guides
Continue through the model, install and recovery pages before flashing production miners.