Firmware Mods

op1repacker

Unpack, modify and repack OP-1 firmware, with ready-made mods included

Sourceop1hacks/op1repacker GitHub stars
op1repacker GitHub repository
op1repacker on GitHub.© op1hacks
Works with
  • Python 3
  • An official OP-1 firmware file
Good to know
  • Firmware risk: Modified firmware is unofficial. Back up first and keep the official update file to flash back; a bad build can leave the OP-1 stuck at start-up.SourceSource

About

The original toolkit behind OP-1 firmware modding. This Python 3 command-line tool unpacks an official OP-1 firmware file so you can inspect and change the files inside, then repacks them into a valid, installable update. It ships ready-made mods you can apply in one step and can report details about a firmware build (version, build date, bootloader version). It grew out of the op-forums custom-firmware research, and later projects such as op1r and OPUS credit it.

Devices
OP-1
Pricing
open-source
License
MIT
By
op1hacks
Last verified
Oct 18, 2026
Source: GitHub