Definition
Custom firmware replaces the factory-installed operating system on ASIC miners with alternative software that provides enhanced features. Benefits often include: automatic efficiency tuning (autotuning), undervolting/overclocking profiles, improved monitoring and alerting, Stratum v2 support, and better pool management.
Popular custom firmware options for full-size miners include Braiins OS and VNish. Installing custom firmware may void manufacturer warranties but can significantly improve mining performance and profitability. Always download firmware from official sources to avoid malware.
In Simple Terms
Third-party firmware replacing stock software for better efficiency, autotuning, and monitoring features.
Third-party firmware that replaces the manufacturer's stock firmware, often providing better efficiency tuning, monitoring, and features like autotuning or Stratum v2 support.