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Antminer S21 XP DCENT_OS Firmware: Exact Release Status

beta20261002: Antminer S21 XP / am3-s21xp

0.9.0 Experimental; development-key distribution; physical qualification pending. Verify and inspect this exact package only. Do not prepare boot media, flash or update from this row. Signed package and exact-board restrictions take precedence over the broad feed label.

No automatic rollback or physical recovery qualification is established. Retain a full exact-unit backup and verified recovery preparation under a separately authorized lab workflow; otherwise keep existing firmware.

Verify this exact artifact, key, source and recovery card

Historical July registry evidence and limitations

Antminer S21 XP · Released / Experimental

No verified public image for this exact model

Antminer S21 XP is Released on the Experimental channel. Exact topology and package-source evidence are public, while mining runtime, verified binary, installation and recovery remain unavailable as operator routes.

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.

View release statusInspect the source
Exact board
Amlogic am3-s21xp; package and exact topology evidence only
Verified file
No verified prebuilt
Install
Denied
Recovery
Not Implemented

The shortest responsible path

  1. Identify: confirm the exact model and physical control-board lane.
  2. Choose: use only the route authorized for that lane; no route means no flashing.
  3. 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 source records exact topology and package-format evidence, but the installed runtime remains management-only and no accepted-share proof is claimed.
Installation
The am3-s21xp install row has no implemented update mechanism, denies installation and authorizes no persistent update.
Recovery
No external-media, installation-write or recovery route is published.
Proof, gap, and limitations

Proof: Exact BM1370/Amlogic topology and package-format source evidence.

Open gap: Prove safe runtime ownership, accepted shares, a verified artifact and reversible install/recovery.

  • S21 XP must not inherit the S21 or S21 Pro serial topology.
  • A package format in source is not a verified public binary.
  • Persistent update is not authorized.
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.