Beta Channel

Warning

This is the beta channel — firmware here is built from the staging branch or from feature-test/* branches and may contain unfinished features or regressions. Use the Stable Channel for production use.

Flash pre-release firmware and SD card image to your TBD-16 directly from the browser — no card reader, no terminal commands, no opening the device.

Use the channel selector below to choose between the latest staging build or any active feature-test branch build.

How it Works

Path A — Quick Update (recommended):

1. You update the WebUI from the device (before flashing firmware)

2. Flashes the selected P4 firmware to the ESP32-P4

3. Flashes the RP2350 co-processor firmware

Path B — Full SD Card Deploy (fresh install / corrupted SD card):

1. Flashes the USB Mass Storage firmware (mounts the SD card via USB)

2. Downloads and extracts the SD card image directly onto the device

3. Switches the device back to normal operation

4. Flashes the P4 firmware

5. Flashes the RP2350 co-processor firmware

Hardware setup:

• Front JTAG port (USB-C #3) → serial communication (Steps 1, 3, 4 / Path A Step 1)

• Back USB-C Port #1 → SD card drive + power (Steps 1, 2 / always connected)

• Back USB-C Port #2 → RP2350 BOOTSEL flash (Step 5 / Path A Step 2)

Browser: Chrome, Edge or Opera required (WebSerial + WebUSB).

Time: 5–10 minutes

▼ Select Channel

Choose a pre-release channel. Staging is the default. Feature-test channels appear when engineers push to feature-test/* branches.

Loading channels…

Discovering available channels…

? Choose Your Update Method

⚡ Quick Update Recommended

Update the WebUI first, then flash P4 + Pico firmware.
No SD card erase, no MSC mode — fast & easy.

🗄️ Full SD Card Deploy

Flash P4 + Pico firmware and re-write the entire SD card image.
Use for fresh installs, recovery, or if your SD card data is corrupted.

⚠️ This erases ALL data on the SD card — samples, macros, presets, and any custom files will be permanently deleted.

Choose an update method above to continue.

1 Check & Update WebUI

Check the SD card files before flashing new firmware — some releases require updated WebUI files to boot correctly.

Open http://192.168.4.1/webui-update.html.
The updater checks your version automatically — click Install if an update is available.
If the page says "✓ WebUI is up to date", that's normal — not every firmware release changes the WebUI. Skip this step and continue to Step 2.

After the WebUI update completes (or if already up to date), continue to Step 2.

2 Flash ESP32-P4 Firmware

Connect the front JTAG port (USB-C #3) and keep back Port #1 connected for power. Click Connect and select "USB JTAG/serial debug unit" in the port picker, then flash dada-tbd.bin to the ESP32-P4.

Loading… Flash TBD-16 Firmware

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3 Flash RP2350 (Pico Firmware)

Disconnect all cables. Hold the BOOTSEL button (left of the front JTAG port), plug back USB-C Port #2 (closest to the edge) while holding, then release BOOTSEL. A drive "RP2350" or "RPI-RP2" should appear. Click Connect.

Connect Flash Pico Firmware Reboot

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Disconnect all cables. Hold BOOTSEL → plug Port #2 → release. Then click Connect.

✓ Quick Update Complete

Your TBD-16 has the latest beta firmware.
Open http://192.168.4.1 to use the device.

1 Flash MSC Firmware & Mount SD Card

Connect both USB-C cables: front JTAG port (serial) and back Port #1 (SD card drive). This step flashes the USB Mass Storage firmware via the front port. After reboot the SD card will appear as a removable drive on the back port.

📌 In the port picker, select "USB JTAG/serial debug unit" (not "Debug Probe").

Port not showing? Hold BOOT (between Port #1 and #2) → press Reset → release BOOT → press Reset again.

Loading… Flash & Switch to SD Card Mode

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2 Write SD Card Image

The SD card should now be mounted via back Port #1 (look for a "NO NAME" drive). Select the mounted drive below.

⚠️ All data on the SD card will be permanently erased — including your samples, macro definitions, sound presets, and any custom files. The factory SD card image will be written in their place.

Select SD Card Drive

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Select the "NO NAME" SD card drive.

3 Switch Back to Normal Mode

Safely eject the SD card drive from your computer before proceeding. Keep back Port #1 connected for power, and the front JTAG port connected for serial. Click Connect and select "USB JTAG/serial debug unit" in the port picker.

Connect Switch to Normal Mode

Click Connect and select "USB JTAG/serial debug unit".

4 Flash ESP32-P4 Firmware

Press the Reset button on the back (next to Port #1) to restart the device. Then click Connect and select "USB JTAG/serial debug unit" in the port picker.

📌 Port not showing? Hold BOOT (between Port #1 and #2) → press Reset → release BOOT → press Reset again.

Connect Flash TBD-16 Firmware

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Press Reset on the back, then click Connect and select "USB JTAG/serial debug unit".

5 Flash RP2350 (Pico Firmware)

Disconnect all cables. Hold the BOOTSEL button (left of the front JTAG port), plug back USB-C Port #2 (closest to the edge) while holding, then release BOOTSEL. A drive "RP2350" or "RPI-RP2" should appear. Click Connect.

Connect Flash Pico Firmware Reboot

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Disconnect all cables. Hold BOOTSEL → plug Port #2 → release. Then click Connect.

✓ Pre-release Firmware Setup Complete

Your TBD-16 has the SD card image and selected pre-release firmware.
Disconnect ALL USB cables, wait 5 seconds, reconnect ONLY back Port #1, then open http://192.168.4.1.

Having trouble? See the Troubleshooting page.