ESP32-PICO-MINI-02 unable to load firmware with EspRFTestTool Toolkit

[TomChen]

Hi all,
The current official website ESPRFtool v4.7 tool does not support PICO and U4WD chip burning. Previously v2.8 supported it. We will update and release the supported tool to the official website in about 2 weeks. You can currently use this preview version of the tool for burning. https://dl.espressif.com/RF/EspRFTestTo ... Manual.zip

Thanks for your support.