LumaJoin the Waitlist

Full USB flash.

Use this page on a desktop with Chrome or Edge (Web Serial). Connect your ESP32-S3 board with a data-capable USB cable.

  1. Put the device in download mode (typical DevKit: hold BOOT, tap RESET, release BOOT). If the board looks “bricked,” this still works: the ROM bootloader in mask ROM is intact — only the flash bootloader or app may be wrong.
  2. Click the button below and choose the serial port.
  3. Allow a full erase when asked if this is a new install or recovery.
Latest available firmwarev0.3.38
Use Chrome or Edge on a desktop. Web Serial is not available in this browser.Open this page over HTTPS (required for Web Serial).

USB diagnostic console

After flashing, click Connect console, choose the Luma serial port, then use commands like version, status, net, or setup.

Console not connected.

After flashing, the device can use normal Wi-Fi / OTA updates. This page is only for hardware that never had OTA or needs a clean recovery.