Installation
Instructions for installing Vnish L9 firmware:
Bitmain has closed the ability to install third-party firmware in the factory firmware starting from March 2024, you need to downgrade the factory firmware to an earlier version to install the VNISH L9 firmware.
FOR this: Download the bitmain recovery image for 21. (the archive contains images from the T21 amlogic and cvitek control boards). And follow the instructions below.
Instructions for installing the recovery image
- You must use a flash drive or SD card with a capacity of up to 32GB and be sure to format it in FAT32. It is not recommended to use an SD card with an OTG adapter for AMLOGIC control boards instead of a flash drive.
- Unpack the archive for your type of control board to the root of the flash drive (sd card).
- Connect the SD card or OTG adapter with a flash drive to the switched off miner.
- Turn on the miner and wait until the green LED on the front panel of the miner lights up (and remains constantly lit). This will mean that the firmware process has been completed successfully. This process takes no more than one minute.
- Turn off the miner’s power and remove the SD card or OTG adapter with the flash drive from the control board.
- Turn on the miner’s power and wait for it to boot, then use VNISH TOOLKIT following instructions in point 9 you need to manually specify the model of your miner in the “Miner model” field and install the pre-downloaded vnish L9 firmware for your type of control board.
- * If the required model is not available in the “Miner model” menu, then you need to leave “DETECT AUTOMATICALLY” and install previously downloaded vnish firmware for T21.
Next, you will need to additionally update the miner via the Web interface with the pre-downloaded Vnish firmware for L9 and the control board type download UPDATE Vnish L9 web nand UPDATE version from our vnish website.
Select Vnish firmware
Vnish firmware for Bitmain
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VNISH TOOLKIT FOR L9 SERIESModes antminer L9 firmware
STOCK BITMAIN FIRMWARE L9
16G – 3360 watt (210J/G)
Version 1.2.6 Stable
🆕 Expanded Miner Support
• Newly Antminer supported models:
• T19 Pro Hydro, S19j XP, S19e XP Hydro, S19 Pro Hydro (120 chips)
• S21 XP, S21+, S21+ Hydro, S21 Immersion, S21 Pro,
• S21 XP Hydro, S21 XP Immersion, T21 with Xilinx and L9
• Antminer submodel support added for:
• S19 XP: BHB56802
• S21 Hydro: HHB68601, HHB68502, HHB68503
• T21: BHB68701-
• S21: BHB68606, BHB68603P, BHB68603-
⚙️ New Features & Enhancements
• Added ability to edit tuned presets
• Chinese language now available in dashboard
• New detailed graph for power consumption
• Shows miner consumption and hashboards from presets (for models without PSU consumption reporting)
• Water temperature widget for Antminer S19 Pro Hydro and S19 Pro Plus Hydro (inlet/outlet)
• Miner Initialization: Quick pause during initialization
• PSU temperature monitoring support
• Automatic preset retuning after repeated “Chain Break Detected” errors
• Comprehensive error system with detailed error codes
• Updated voltage limits for Antminer T21
• Automatic shutdown on any chain error for models without PIC controllers
• Charts now persist after reboot
• Resolved unexpected miner crash
🔧 New Configuration Options
• Preset Switcher options:
• Ignore fan speed and Auto-lower top preset based on temperature
• Chip Throttling: Available for x21 series (excluding S21 Pro)
• Sensor Handling:
• Option to ignore chip temperature sensors (Antminer L9, Antminer S21, Antminer T21, Antminer S21 Imm, Antminer S21 Hydro)
• Option to skip broken temperature sensors
• Startup Control:
• Configurable delay before mining starts (reduces startup power spikes)
• Configurable minimum number of operational boards required to start mining
🔧 Bug Fixes
• Fixed occasional EEPROM corruption
• Fixed issue with pool configuration loss on abrupt shutdown
• Fixed dashboard freezing caused by error handling
• Fixed immersion mode unexpectedly resetting to auto
⚠️ Deprecated Features
• Removed Hotel Pool and Fees tab
🌡 Preset & Temperature Control Improvements
• Preset Switcher thresholds updated: RISE at 85 °C and DECREASE at 90 °C
• New presets added for: Antminer S19j Pro+, S19a, S19 XP, S21
• Corrected presets for: Antminer S19e XP Hydro, S19 (76 chips), S19j Pro, S19 Pro+ Hydro, L7 and S19i
🌬 Fan & Cooling Enhancements
• Added maximum fan speed limit for auto mode
• Reduced minimum fan speed during pause to 0%
• Increased maximum fan speed to 90% during preset increase
• Improved fan control logic based on temperature
⚙️ Configuration & System Behavior
• Restart Configs: Max Restart Attempts now defaults to disabled (0)
• TimeZone:
• Added time zone handling for Cvitek
• Full reboot now required when changing time zone
• EEPROM Reading: Accelerated on all boards except XIL
• Default Support: Default board_model assigned for miners without EEPROM
• Logging:
• Logs not saved after reboot on Cvitek boards
• Chip ID shown in logs during overheat events
🌍 User Experience (UX) & UI Improvements
• Dashboard now auto-detects system/browser language at first launch
• Various UI and UX enhancements for improved usability
🔐 Stability, Performance & Security
• Improved autoswitcher and autotune performance
• General system stability improvements
• Strengthened firmware security
• Improved PSU compatibility across supported models
• Added brute-force protection for web interface passwords
💻 API Changes
• Factory Info Enhancements: Added has_pics, psu_model, and psu_serial to response
• New API Fields:
• summary: includes hr_nominal (theoretical hashrate)
• info: includes build_uuid, build_name
• metrics: includes power_consumption
• chips: includes throttled field