Hello,
I need help recovering my device ESP32-S3 N16R8 AI 1.28-inch Round LCD Box.
Here is what happened step by step:
- The device was working originally with the stock XiaoZhi firmware.
- I attempted to flash a different ESP32-S3 firmware (not made specifically for this board).
- After flashing, the screen stayed black and the device stopped booting normally.
- The device is still detected by Windows as COM6, so USB is alive.
- Using serial tools, I consistently get the message: “The filesystem appears to be corrupted. Perform factory reprogramming of MicroPython firmware (completely erase flash, followed by firmware programming).”
- I downloaded and used ESP32S3 Flash Download Tool v3.9.5 (SPI Download mode).
- However, when I try ERASE or START, the tool gets stuck at Connecting...... and never progresses.
- I tried: Holding the BOOT button during power-up BOOT + RESET combinations Different baud rates (115200 and 9600) Reconnecting USB and restarting the PC
- The tool opens the COM port but the ESP32-S3 does not enter ROM bootloader mode.
At this point, I believe:
- The flash contents are corrupted
- The board needs a full chip erase and factory firmware reflash
- But I cannot reliably force the device into download/bootloader mode
Could you please help with:
- The exact BOOT/RESET procedure for this board
- Confirmation of which button is GPIO0 (BOOT)
- Or an official recovery method / tool / firmware combination for this situation
Thank you very much for your support.
Best regards.
