maddoctor90
New member
I have 2x Teensy 4.1 with the same issue. When the Teensy Loader program runs (tested with both versions 1.53 and 1.55) the bootloader, pin 24 turns on (with nothing other than a multimeter lead connected to the pin). I tried adding an external pulldown resistor incase the pin was just floating; but, it appears pin 24 is actually turning on. Is this normal operation? If so, where can I find it documented?