Antminer S19j Pro DCENT_OS Firmware: Status and Download

beta20261002: Antminer S19jPro / am2-s19j

0.9.0 Experimental; development-key distribution; physical qualification pending. Requires an already-running matching DCENT_OS runtime that admits the signing authority and the exact authorized storage/update route. It is not stock-firmware first installation. Retain full backup, readback, console and exact recovery media; no automatic rollback is established.

Keep full backup and exact board recovery media off miner. Follow completed write/readback and route power-cycle prompt; upload acceptance is not boot proof and route does not guarantee automatic reboot. No assumed auto-revert; use saved exact recovery procedure, never raw guessed boot environment writes.

Verify this exact artifact, key, source and recovery card

Antminer S19jPro / Zynq/Xilinx / am2-s19j — Existing matching DCENT_OS update; no stock first-install
Antminer S19jPro / BeagleBone AM335x / am3-bb-s19jpro — Developer SD payload for authorized lab use; no consumer installation path

S19j Pro BeagleBone: an SD payload, not a complete boot image

Developer SD-payload artifact; no supported consumer installation path is provided here. The required lab-approved external boot assets and exact media-preparation route are not provided as a verified public consumer install set. Download and signature/source verification do not supply a bootable card.

The verified Experimental am3-bb-s19jpro package follows a different route from the Xilinx am2-s19j existing-DCENT_OS update archive. Its source profile identifies the AM335x S19J_IO_BOARD_V2_0 lane with BM1362 and dsPIC fw89; that is source targeting, not validation of every BeagleBone S19j Pro revision. Confirm the exact board in Toolbox.

The original dcentos-am3-bb-s19jpro-sdcard.tar contains an SD payload. It is not a raw card image, stock-web update or NAND installer. A usable boot card additionally needs verified AM335x MLO, u-boot.img, uImage and a carrier-aware DTB from the lab-approved stock restore bundle. The embedded instructions require a DTB identity marker of S19J_IO_BOARD or am335x-boneblack-btm. Follow the supplied Toolbox route only when it provides this exact boot-media preparation and recovery information; otherwise keep the current firmware and original media.

Do not feed the tar to a raw-image writer or finalize media by Windows format/copy: the instructions require MLO as the first real FAT file entry. The boot payload is ramdisk.gz, the U-Boot legacy ramdisk wrapper; uramdisk.image.gz is for inspection and recovery. No ext2 root filesystem is supplied for this boot path. Retain a backup and original boot media and verify the staged files before ejection. Power off before changing media or boot selection; no jumper position is inferred here.

The source defaults mining off with an empty pool and worker. Keep mining stopped if identity, PSU communication or cooling checks fail. For an SD trial's recovery, complete Stop, disconnect power and restore the original media and boot selection. NAND installation and NAND revert remain disabled until exact-lane SD recovery, full NAND backup and restore-to-stock are proven. Signed package verification establishes neither physical boot nor accepted shares, safe cooling, endurance or recovery.

BeagleBone exact package and signature card

Historical July registry evidence and limitations

Antminer S19j Pro · Released / Experimental

Verified update available — for existing DCENT_OS only

The archive is for the exact am2-s19j Zynq/Xilinx lane. It is not a vendor-stock first install, and other S19j Pro control boards do not inherit it.

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.

Download July 2026 guarded self-update Verify July 2026 SHA-256 Read the self-update limits

Exact board: Verified artifact: am2-s19j Zynq/Xilinx; BeagleBone, Amlogic, CVitek and STM32MP15 are separate, unauthorized lanes for that file
Verified file: 1 guarded self-update archive
Install: Guarded Self Update
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

File	Exact lane	Verification	Operator route
`DCENTOS_XIL3_S19jPro_beta20260709.tar`	am2-s19j Zynq/Xilinx	`e7afc67cd9f7c9cda0bcd329f61116ef352644c3ae707741e04e1e1e5e7b2a96` Embedded payload manifest: Ed25519 verified. No outer detached signature located.	Use only through the documented route Use only for a guarded DCENT_OS-to-DCENT_OS update on am2-s19j; vendor-stock first installation is not authorized.

Mining, installation, and recovery boundaries

Mining: The project matrix reports accepted shares on the Zynq lane and historical runtime proof on BeagleBone; this website does not claim an independent reproduction.
Installation: The verified package supports a guarded DCENT_OS-to-DCENT_OS update on am2-s19j. Public vendor-stock first installation remains an evidence gap, and public_beta_install is false in the source matrix.
Recovery: No witnessed vendor-stock first-install and stock-restoration capstone is published for the exact artifact.

Proof, gap, and limitations

Proof: Project-reported accepted shares plus a verified outer hash and embedded Ed25519 manifest signature for the Zynq archive.

Open gap: Publish a witnessed vendor-stock first install, current-build soak and recovery receipt for the exact Zynq artifact.

The downloadable package is Zynq/Xilinx only.
BeagleBone runtime evidence does not authorize a general NAND install.
Amlogic, CVitek and STM32MP15 boards require their own evidence and artifacts.

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.