Bluetooth File Transfer not working on ESP32-S3 (YD-ESP32-S3-N16R8) #313

CircuitPython Version

CircuitPython versions tested:

8.2.7 (fr)

9.2.7

10.0.0-alpha.6

Workflow(s)

BLE

Browser(s)

Google Chrome 136.0.7103.114
On macbook pro m2, linux and windows

Console Log

no error

Steps

1. Flash the board with one of the following CircuitPython versions:
   • adafruit-circuitpython-yd_esp32_s3_n16r8-fr-8.2.7.bin
   • or 9.2.7, or 10.0.0-alpha.6
2. After reboot, wait for the safe mode LED pattern, then press the BOOT button to enable the BLE workflow.
3. Go to https://code.circuitpython.org/
4. Click on Bluetooth to connect via Web Bluetooth.
5. Select the ESP32-S3 board from the list of available devices.
6. Observe the following:
   • The connection seems to succeed (no error message),
   • No files are listed on the board,
   • Attempting to upload a file shows the loading animation (the snake) indefinitely, but the upload never completes.

Description

No response

Additional information

I also tested File Glider: the board appears, but selecting it throws an error.

Web Serial works correctly with the board.

Unfortunately, I don’t have an nRF52840 board to compare against.