My teensy4 was normal before. However, after plugging and unplugging the USB once, the USB cannot be connected. There is no USB in teensyduino-> Tools-> Port. Teensy's USB interface and some chips are very hot, proving to be powered, and there are no signs of burnout from the outside. This USB cable was normal before, and replacing the USB cable did not work either.I pressed the teensy button, but no LED is lit.I am a beginner, please help me, thank you
macOS Catalina,Arduino1.8.10,Teensy Loader 1.48,Teensyduino_MacOS_Catalina
23 degrees Celsius at room temperature
Processor temperature 61 degrees Celsius
This chip is 97 degrees Celsius
macOS Catalina,Arduino1.8.10,Teensy Loader 1.48,Teensyduino_MacOS_Catalina
23 degrees Celsius at room temperature
Processor temperature 61 degrees Celsius
This chip is 97 degrees Celsius