Developed by Espressif Systems, the Flash Download Tool is a Windows-based utility that provides a user-friendly interface for the esptool.py command-line utility. While developers often use terminal commands, the GUI tool is preferred for: Flashing multiple modules simultaneously.
Once "FINISH" appears, press the button on your board to run the new firmware. Troubleshooting Common Errors flash download upd tool 392
Version introduced improved stability for the ESP32-S series and better handling of high-speed COM ports, making it a "sweet spot" for many hobbyists and professional engineers. Key Features Developed by Espressif Systems, the Flash Download Tool
Flash Download UPD Tool 3.9.2: The Complete Guide to Firmware Flashing Quick adjustment of SPI flash speed, mode, and size
If the tool stays on "Waiting for Sync," hold the button on your board and tap the EN/RESET button. The progress bar will turn green as the data transfers.
Quick adjustment of SPI flash speed, mode, and size.