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PX-RE

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unofficial resources for Sequential Prophet X, including a new firmware with bugfixes and instructions for fitting a larger SSD.

PX-RE is a mod for the Sequential Prophet X, by @water-feature. Open source under MIT, latest release v2.2.2.2.2 (October 2026).

forSequential Prophet X·by@water-feature

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MIT· water-feature/PX-RE·downloads come from the creator’s GitHub releases

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  1. v2.2.2.2.2Px firmware v2.2.2.2.2 — Source releaseLatest0 files

    Source-only release for Prophet X firmware 2.2.2.2.2.

    Build locally from your own official 2.2.2.0.0 update. No firmware images or extracted payloads are included. Keep generated firmware private.

    Read the build instructions and recovery guide before installing. Feature descriptions and evidence are linked in the README.

    Verified build environment: Apple silicon macOS, Apple clang 16.0.0 (clang-1600.0.26.6), Rust 1.83.0 and Apple objdump from the same toolchain. Host fixtures require Rosetta.

    Expected file identities

    FileBytesSHA-256
    Official input: PxUpdate_V2.2.2.0.0.bin3,099,064a4b304b3bb48ca933ae63c99c0098698c497ebfc7c38ab2a823b5e0df4919fa9
    Generated output: PxUpdate_V2.2.2.2.2.bin3,187,784488444589607a1b4e793a8d8f79a67c5bd50773b722c302e6d80bc1db77b4b7c
    Factory MIDI recovery: PX_Main_2.2.2.0.0.syx2,398,21563882cc635caa42dfaa45f0bde6545b406c78e248128732663736d946b94daf0

    The generated firmware was verified byte-for-byte against the accepted final build. Matching hashes establish byte identity, not exhaustive hardware compatibility or repository authenticity.

    Source commit: 80e4e17f2f5eebb5933964abcdc1b8c09d15343e. Project code and documentation: GPL-2.0-or-later; see LICENSE and NOTICE. No affiliation with Sequential.