🪛 Step-by-Step: Flash Bootloader, Partitions, and App with the GUI Tool

1. Download the Tool

Get it from: https://www.espressif.com/en/support/download/other-tools

Extract it and run flash_download_tool_3.X.X.exe

2. Launch and Select Mode

3. Set Up the Flash Addresses and Files

You’ll now see a table with file paths and flash addresses:

Check File Path Flash Address
☑️ ui.ino.bootloader.bin 0x0000
☑️ ui.ino.partitions.bin 0x8000
☑️ ui.ino.bin 0x10000

Make sure you check the boxes on the left and browse to the correct file for each.

4. Set Other Parameters (at bottom)