Antminer S21 · Released / Experimental
No verified public S21 image yet
The exact am3-s21 Amlogic lane has earlier lab mining evidence, but not a verified current public binary. Stock AMLCtrl installation remains blocked.
Risk: Experimental firmware can brick this miner, cause mining downtime, and may affect warranty coverage. Do not continue until the exact board and recovery path are confirmed.
- Exact board
- Amlogic am3-s21, single-slot, NoPic lane
- Verified file
- No verified prebuilt
- Install
- Lab Only
- Recovery
- Not Implemented
The shortest responsible path
- Identify: confirm the exact model and physical control-board lane.
- Choose: use only the route authorized for that lane; no route means no flashing.
- Recover: verify the stop condition and restoration path before any write.
Files and current evidence
No verified prebuilt file is listed for this exact model in registry 2026-09-01.5. Do not substitute another model’s file.
Mining, installation, and recovery boundaries
- Mining
- The project matrix records accepted shares on an earlier runtime path; that result has not been reproduced on a verified current public binary.
- Installation
- The am3-s21 host-rootfs-window path is experimental and lab-only. Stock AMLCtrl in-place installation remains blocked.
- Recovery
- No external-media or model-specific stock-restoration route is published.
Proof, gap, and limitations
Proof: Project-reported historical accepted shares on a runtime path, not a current public-image qualification.
Open gap: Reproduce accepted shares on a verified current build and publish a reversible stock-install/recovery route.
- S21, S21 Pro and S21 XP are distinct topologies.
- Historical runtime evidence is not a current artifact qualification.
- The stock Amlogic in-place route remains lab-only and blocked for general use.
Evidence on this page
Continue with the right evidence
Registry 2026-09-01.5 · reviewed 2026-09-01. Availability, binary, mining, install, and recovery are separate claims.