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Alright, thanks Paul!

Hi Paul, I have no problems with just the Arduino IDE (both versions 1.8.19 and 2.0.0) and Teensyduino 1.57, so the problem only effects PlatformIO.

Just a FYI the Teensy is hooked up to a Bosch...

@KurtE yep tried rebooting my pc as well, it was a no go.

My Teensy 4.0 is standard I bought it from PJRC. The normal Teensy GUI shows up, I've been using this particular setup for a while and...

Right so I rebooted the Teensy by pressing and holding the program mode button for 15s, same thing is happening :/

Hi Everyone,

When I try to upload my code to my Teensy 4.0 two things happen:-

1) The code doesn't actually upload
2) I get this error - Disconnected (device reports readiness to read but...