Unofficial community firmware · Sonicake Pocket Master
Six screen themes, twice the Clone and IR slots, 30-character names and a new I/O tab for recording, all on top of the official V1.3.3 firmware. Flash it with Sonicake Manager like any update, and manage everything from the browser.
At your own risk. Unofficial, not affiliated with Sonicake. Tested on our own unit only: other hardware revisions may not work or may be bricked. Can void the warranty. No guarantee of any kind. Read the disclaimer.
Coming from the stock Sonicake firmware? Your user IRs and Clones will be lost on the first boot and must be re-uploaded. Presets and settings are kept.
CFW feature · Settings → Style on the pedal
Just for fun: the official shell & button colours
Illustrative drawing, not a photo: the screen is a render recoloured with the firmware's theme colour tables; colourways are approximations.
// releases
Every release is one file, for the first install and for every later update. Newest first.
Loading releases…
// features
Everything below runs on the pedal itself, on top of the official Sonicake V1.3.3 firmware.
A new Style tab in Settings: Default (pixel-identical to stock), Amber CRT, Tube Amp, Synthwave, Stage Hi-Contrast and Game Boy. Live preview, applied to every screen, icon, tuner, looper and the boot animation. Display brightness 10–100 %, now kept across power cycles.
Twice the NAM capture (Clone / User Profile) slots: 10 instead of 5. Convert your
.nam files, A2 captures included, in the web app.
10 user cabinet IRs next to the 15 factory cabs, in the same flash area as the stock 5. Upload, rename and clear them in the SonicMaster CFW web app; uploads are power-cut safe.
At every boot the firmware checks its IR and Clone storage and formats it only when it is missing or still in the stock layout, which happens once, on the first install over the stock firmware. Later CFW updates keep everything.
IR and Clone names up to 30 characters. Up to 15 they look exactly as before; longer names scroll on one line in the Effects editor. Set them in the SonicMaster CFW web app.
Direct Monitor ON / OFF: turn it off to hear only what comes back from the computer (perfect with amp-sim plugins). USB Rec: WET (stock), DRY DI (clean guitar on both channels, for re-amping) or DI L + WET R (both at once). Saved across power cycles.
The update header is unchanged, so Sonicake Manager still recognises and updates the unit for flashing. Presets, slots 1–5 and the first 15 characters of names work as usual there; slots 6–10 and the full names are managed in the SonicMaster CFW web app.
In the tuner, turn the encoder to move the reference pitch in 1 Hz steps, from
430 to 450 Hz. The value sits in a small line at the top of the tuner screen (A4 = 441 Hz)
and the tuner follows it live. Every time you open the tuner it is back to 440 Hz: nothing is
saved, so a band can never tune to a forgotten setting.
A new start-up animation with the CFW version number, in place of the stock one: same size and length, recoloured by the selected theme.
SonicMaster CFW runs in the browser: all 10 IR and Clone slots, NAM conversion, long names, themes, brightness and the I/O settings. More below.
// coming next
Ideas being worked on or explored. No dates, no promises.
// screens
No photos yet: these are illustrative renders, composed from the UI graphics extracted from the firmware and recoloured with the exact colour mapping the CFW applies on the device. Layout and font are approximations.
// web app
The editor in your browser, nothing to install. A fork of SonicMaster that knows the custom firmware.
.nam captures (A2 included) and loads .clo into
any of the 10 Clone slots.wav) into all 10 User IR slots, with long names// install
One file for the first install and for every update. Takes a couple of minutes.
Dump the MCU SPI flash with a CH341A programmer and a SOP-8 clip. The bootloader is not part of the update file, so this backup is your safety net.
Your user IRs and Clones WILL BE LOST on the first boot of the CFW (their slots are reformatted for the new 10-slot layout) and must be re-uploaded (with the SonicMaster CFW web app). Only IRs and Clones: your presets and settings stay. Presets that used them point to an empty slot until you re-upload. The pedal cannot export IRs or Clones, so keep your .wav / .nam / .clo files.
Compare the SHA-256 shown with the release, e.g. certutil -hashfile
file.bin SHA256 on Windows or shasum -a 256 file.bin on macOS / Linux.
Load the .bin like any official update. Do not unplug the pedal and do
not let the computer sleep. Windows 11: if the update starts and then stalls, open Device Manager
→ Pocket Master → Update driver → Browse my computer → Let me pick → USB Audio Device, then
retry.
Settings → About shows V1.3.3-CFW0.5. The new I/O tab is the last
one, and Style has two rows.
Flash the official V1.3.3 with Sonicake Manager. The stock firmware ignores the CFW settings; Clones and IRs stored in the new slots are not visible to it, so re-upload them.
⚠ At your own risk. We do NOT guarantee that this firmware works on your device. It is being tested on our own unit only (firmware V1.3.3); Sonicake may have shipped different hardware revisions we have never seen, on which the CFW may not work or may brick the pedal.
Unofficial community project. The Pocket Master custom firmware and SonicMaster CFW are not affiliated with, authorised or endorsed by Sonicake.
Modifying the firmware of your device can brick it and may void your warranty.
Everything here is provided "as is", without warranty of any kind, express or implied. The author accepts no liability for damage to your device, loss of data (presets, IRs, Clones) or any other loss arising from its use. Use it at your own risk.
Sonicake, Pocket Master and the other product names mentioned are trademarks of their respective owners and are used here only to describe compatibility.
The firmware file is the official Sonicake firmware V1.3.3 with community modifications: it contains Sonicake code, modified by the community.
// credits