Download firmware for Bitmain Antminer KA3 (166Th) from the official source. Versions: 1. Check compatibility and release details; local copies are unavailable.
Firmware is hardware-specific. Match the exact model and control-board revision, back up settings, use stable power, test one miner first, and never interrupt an upgrade. A wrong image can make the controller unbootable.
Antminer-KA3-release-202405280928.bmu
MD5:ea40cbdbb873ca062295c13af7c505 96 Release Notes: 1. Refine firmware. Please make sure the miner type and firmware type are the same before upgrading the miner firmware.
Sources checked 14 September 2026