Octatrack OS tool

MIDISC patcher

Build 1.40MSCN6 in your browser from your own official OS 1.40C. Nothing is uploaded — patching stays on this device. Patch frozen from golden 1.40MSCN6.bin (splash 1.40MSCN6; not a live build tree).

Warnings

Bleeding-edge / custom firmware. Expect unfinished work, crashes, and data loss. Back up your projects first.
Modified firmware can brick or soft-brick the unit and voids normal support expectations. Not affiliated with or endorsed by Elektron.
No Octatrack firmware is hosted here. You provide your own official OCTATRACK_OS1.40C.syx. The patched image is built entirely in the browser.
Do not redistribute the generated .bin / .syx — they contain Elektron’s OS. Share this page instead.
Flash only via CompactFlash: copy 1.40MSCN6.bin to the card root → OS UPGRADE. Keep stock 1.40C for recovery (MIDI or CF).

File patch

Drop your stock OCTATRACK_OS1.40C.syx, then build. You’ll get 1.40MSCN6.bin (CF flash) and a matching .syx.

Drop 1.40C .syx here or click to choose a file

Loading patch…

Flash 1.40MSCN6.bin from the CompactFlash root with OS UPGRADE. Recovery: stock OCTATRACK_OS1.40C.