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Download BlueSCSI Firmware

BlueSCSI header background with vintage computers
Firmware Downloads
v2026.08.17 Released August 17, 2026 What's new

Update over USB

Download the file for your board.

BlueSCSI V2

Desktop, DB25, Centronics and PowerBook.Any Pico, with or without Wi-Fi.

Download .uf2

BlueSCSI_V2_Universal_2026-08-17_4d0f96f.uf2 (2.7 MB)

BlueSCSI Ultra

50-pin.With or without an expansion hat.

Download .uf2

BlueSCSI_Ultra_2026-08-17_4d0f96f.uf2 (1.4 MB)

BlueSCSI Ultra Wide

68-pin Wide and 80-pin SCA.One file covers both.

Download .uf2

BlueSCSI_Ultra_Wide_2026-08-17_4d0f96f.uf2 (909 KB)

  1. Hold the BOOT button while plugging in USB. On a V2 it's the button on the Pico.
  2. Drag the .uf2 onto the drive that shows up.
  3. The BlueSCSI will restart. Check log.txt on the SD card to see the new version.

Windows sometimes shows a copy error. Ignore it. The update still worked.

If no drive shows up, try a different USB cable.

Update from the SD card

One zip for every board. No USB cable needed.

Copy the .zip to the SD card. Don't unzip it. Next time it boots, BlueSCSI updates itself and deletes the zip. Don't unplug it until it's done.

You need to be on v2025.07.07 or newer already.

Download .zip

BlueSCSI_v2026.08.17_4d0f96f.zip (3.8 MB)

Update from BlueSCSI Toolbox

Use the same zip from your retro computer without removing the SD card.

  1. On your Mac, download the .zip from retro.bluescsi.com. It works over http, ftp and gopher.
  2. Open BlueSCSI Toolbox, then SD Transfer.
  3. Choose File, Upload Firmware and pick the zip.
  4. Restart. BlueSCSI updates itself on the way up.

Needs BlueSCSI Toolbox 1.1.0 or newer. If Upload Firmware is greyed out, update over USB once first.

Get BlueSCSI Toolbox

Betas

New features you can try before they land in a release. Expect rough edges.

  • Front Panel Buttons and a display for your BlueSCSI. Download Docs
  • AS/400 Ultra and Ultra Wide as an AS/400 disk. Download Docs
  • PowerView Video A second Mac monitor over SCSI, shown on a modern device. Private beta, ask on Discord to join. Docs Discord

BlueSCSI Toolbox and help

BlueSCSI Toolbox

Move files and swap CDs from your vintage computer. Classic Mac, Amiga, Atari, DOS and more.

Get BlueSCSI Toolbox

Other downloads

Other downloads
  • V2 Audio SPDIF for a V2 with an SPDIF DAC. OLED displays and Qwiic accessories don't work with this build.

    BlueSCSI_V2_Audio_SPDIF_2026-08-17_4d0f96f.uf2 (2.7 MB)

  • BlueSCSI v1 for the original STM32 board. Last release v1.1-20231116, November 17, 2023.
  • Developer archive ELF files with debug symbols.

    dev-BlueSCSI_2026-08-17_4d0f96f.zip (19.3 MB)

  • Older versions and prereleases on GitHub.