ESP-WATCH·BADUSB WebFlasher

No device

Step 01 of 04

Read this first.

This writes the ESP-32-S3-DevKitC-BadUSB firmware onto the DevKitC-1. It replaces the firmware currently on it.

Flashing overwrites the app partition. SD-card files are not touched, but the firmware is. Only run this on your own hardware.

Step 02 of 04

Download mode.

The ESP32-S3 flashes over its own USB. If the board does not drop into download mode on its own when the flasher connects, hold BOOT while plugging the USB-C cable in, then let go.

Chrome or Edge only — Firefox and Safari have no WebSerial.

Step 03 of 04

Connect.

Pick the device in the browser prompt. It appears under vendor 303A (Espressif) as a USB serial port.

Step 04 of 04

Flash.

Erase, then write each image at its offset, then reboot. Do not unplug the board until the log says it is done.

0 / 0 KB0 / 0 partsready

Image: firmware
Chip: ESP32-S3

Flash multiple devices Fully erase flash before writing (wipes NVS & saved WiFi/settings)

Choose file

Complete

Flashed.

The device has been reset and is running the new firmware. You can unplug it now.

Repo

Files

Log

Runs entirely in your browser over your own USB connection. Nothing is uploaded. Source.