Download official firmware for Bitmain Antminer S3. Versions: 4. Local downloads, hardware compatibility, file sizes and SHA-256 checksums.
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_S320150109.bin
SHA-256
d7de5b6914885700a3fb248a7abfa3d32f9c1ab3a3a2a8e88e3f7980e33cf3b0MD5
3e77fc58e4cf9f6c27810c8154c8b0f9Verify the downloaded file with SHA-256 before uploading it to a miner.
1. fix bug of negative temperature 2. fix power mistake adjustment. 3. disable VDD adjustment function. MD5: 3E77FC58E4CF9F6C27810C8154C8B0F9
antMiner_S320140826.bin
SHA-256
8e0b4a80777e6ed756c2d4c0050791fc109c1247266672fbe5268f036d3785cdMD5
48b2e769e1b57892b71d488711773002Verify the downloaded file with SHA-256 before uploading it to a miner.
support S3+ MD5: 48B2E769E1B57892B71D488711773002
antMiner_S320140721.bin
No beeper altert when there is no immediate hashing work. During the normal mining, Green LED is always on. If there is no immediate hashing work for 1 second, the Green LED will turn off. If it lasts more than 1 minute without hashing work, green LED is kept off and beeper rings.
Antminer-S19-XP-merge-release-20230719112813.bmu
only for S19 xp internal test.
Sources checked 14 September 2026