A broken USB port doesn’t mean your development board is done for. This post explains how to revive and reprogram boards like the Nano Flip 3V3 or Pro Mini using the USB-UART Bridge (U2B). It covers voltage selection, wiring connections, optional auto-reset via DTR, and examples for other 3.3V and 5V boards, showing how this simple tool can save damaged boards and support ones without onboard programmers.
This is a companion discussion topic for the original entry at https://community.robotshop.com/tutorials/show/saving-a-broken-dev-board-with-a-usb-uart-bridge