Flash Heltec V3 with ESP Flash_Download_Tool
Start Flash_download_tool, select ChipType ESP32-S3 Loadmode USB. Start the Python tool first with this
Install on PC
Select the BIN files and set the flash point. First load the files from the download area and store them on the PC/LAPTOP.
Important: Only now press the PRG key on the HELTEC-V3 module and connect it to PC/LAPTOP,
Press START BUTTON and omit PRG key.
After successful UPLOAD it should look like this.
Have fun and success