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Thread: Can my Teensy 3.5 come back to life?

  1. #1
    Member
    Join Date
    Dec 2016
    Location
    Buena Park ca
    Posts
    63

    Can my Teensy 3.5 come back to life?

    I unplugged the USB in the middle of a long sketch upload. I had to.
    The teensy is running a robot arm and it went berserk...

    After recovery, the Teensy USB port is not even seen on my Mac

    On windows, it says "invalid divice descriptor" in Device manager.

    What to do>?

    Please help

    Mitch

  2. #2
    Senior Member+ defragster's Avatar
    Join Date
    Feb 2015
    Posts
    10,073
    Unplug the Teensy from USB
    load a simple Blink sketch in the IDE
    In the IDE do a Verify Build
    While HOLDING the Button on the Teensy connect the USB and hold the button another second
    Release the button and it should have the Teensy arrive in HID Bootloader mode and be programmed if the TeensyLoader program is in Auto Mode.
    If not Click the Upload and Reset icons on the TeensyLoader - or put it back into Auto mode

    If that doesn't work do a 15 second restore:
    > start a timer with usable seconds.
    > Connect the Teensy to USB and hold the Button for 15 seconds and release it
    > Then repeat the above steps for the Blink sketch.

  3. #3
    Member
    Join Date
    Dec 2016
    Location
    Buena Park ca
    Posts
    63
    Yes, that worked easily

    Thanks a lot
    Mitch

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