Just spent 5h figuring out why sending a serial command wont trigger in U-Boot. Was literally soldering wires to the boad, decoded the entire line with a scope, used several adapters, downloaded the firmware again and again over serial and USB-dfu and a looking for alternative boards online just to find out cutecom was set to send no LF after a command so U-Boot thought i was still typing something. This is literally the semicolon joke you see splattered over normie coding memes.