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Firmware Upgrade (Using esptool)

If you're unable to update the firmware using Chrome/Edge due to compatibility issues, you can try updating the firmware using the following method:

Driver Installation​

  1. For macOS, you can directly proceed without installing any drivers.
  2. If your Windows system doesn't have built-in serial port drivers, you'll need to install the appropriate drivers. You can download the drivers from here.

Updating Firmware using Python3​

  1. Open Terminal and create a directory: mkdir esptool.
  2. Download the latest firmware and save it in the esptool directory.
  3. Connect the toy to your computer using the provided USB cable, and power on the toy. In Terminal, execute ls -l /dev/tty* to find the serial port device. For example, mine is /dev/tty.usbserial-14210.
  4. Install the esptool tool. Navigate to the esptool directory and execute the following commands:
python3 -m venv venv
. venv/bin/activate
pip install esptool
  1. Use the following command to flash the firmware (Note: Replace VERSION with the version of the firmware you downloaded):
VERSION=23.50.3.11
esptool.py --chip esp32 --port /dev/tty.usbserial-14210 --baud 115200 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size detect 0x0 folotoy-${VERSION}.bin

Updating Firmware using esptool command​

If you don't have a Python3 environment on your machine, you can try the following method to flash the firmware:

  1. Download the official Espressif flashing tool: esptool. For example, if you're using a Mac, download the macOS version of the tool.
  2. Extract the downloaded esptool-v4.6.2-macos.zip to a folder named esptool-v4.6.2-macos.
  3. Download the latest firmware and save it in the esptool-v4.6.2-macos folder.
  4. Connect the toy to your computer using the provided USB cable, and power on the toy. In Terminal, execute ls -l /dev/tty* to find the serial port device. For example, mine is /dev/tty.usbserial-14210.
  5. Use the following command to flash the firmware:

If you encounter a "permission denied" error, it means you don't have the necessary permissions. You can run chmod +x esptool to add the required permissions. After modifying the permissions, run the command again. At this point, macOS may display a security prompt. Go to System Settings > Privacy & Security and allow the execution of esptool.

Flash the firmware (Note: Replace VERSION with the version of the firmware you downloaded):

VERSION=23.50.3.11
./esptool --chip esp32 --port /dev/tty.usbserial-14210 --baud 115200 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size detect 0x0 folotoy-${VERSION}.bin