Mods by Bribery@thisisbribery on Instagram ↗

Stolperbeats ULTRA flasher

Alt swing tables, ratchets, MIDI pitch and fill mode, added to your own copy of the official Stolperbeats firmware. See, hear and make your own Timings first in the STOLPERBEATS VISUALISER.

🔒 Runs entirely in your browser. Your firmware is never uploaded, and this site hosts none.

1Load your official firmware

Use the unmodified _MSM_stolperbeats_hw_rev4-163.bin from Making Sound Machines. Other versions and already-modded files (including Firmware lab builds) are refused, because every patch targets exact addresses.

2Swing tables on the Timing buttons

Put any table on any of the four Timing buttons: the factory ones, the alt tables from the visualiser, your own Timings from the visualiser's CREATOR, or a .timing.json you upload. Each button keeps its other behaviour (accents, Rolls). The picture shows where the 8 steps of a half bar land at Shuffle 1 to 6.

Make your own in the visualiser ↗

3Choose your mods

Mix them freely. Fill CV needs Fill mode. All four share one engine that is added once; switching a mod off leaves its controls exactly as stock.

4Build and download

The code mods are checked against the expected SHA-256 for your exact combination before anything is written. Then your tables go on top.

Load the official firmware first.
Unofficial, modified firmwareUse it entirely at your own risk. The author accepts no responsibility for any damage, malfunction, lost patterns or settings, or warranty issues that may result.
Recipes: share your picks, never the firmware

A recipe is a small .json with your table picks, the rows of any custom tables, and your mods. Anyone can open it here with their own official file and build the same firmware. The visualiser's Firmware lab recipes open here too.

5Flash it over USB

Chrome or Edge on a computer can flash the module straight from this page (WebUSB). Anywhere else, use dfu-util the way the manual describes.

  1. Connect the module to your computer with USB, rack powered.
  2. Hold BOOT, press and release RESET, then let go of BOOT. The module is now in its bootloader.
  3. Click Connect and pick STM32 BOOTLOADER (or DFU in FS Mode).
  4. Click Flash my build. The page erases only the sectors it needs, writes, reads everything back to check it byte for byte, then restarts the module.
sudo dfu-util -a 0 -s 0x08000000 -D your-build.bin

The STM32 bootloader lives in the chip's ROM, so a bad flash can always be undone: do BOOT and RESET again and flash the official file.