I recently upgraded to the latest Arduino IDE, 1.8.7 and the latest version ot teensyduino, 1.44 on my windows 7, 64 bit professional system. Now the IDE doesn't find any teensy boards. I've tried a couple of different ones 3.2 and 3.5 with two different cables and different USB ports both built-in and on a pci adapter. Nothing cleared this error. I restarted the system. I deleted the com 16 device using device manager then plugged in a 3.5 board. It installed the Com 16 back but in the IDE it isn't labeled as a teensy 3.5. I even went back to basics and loaded blink with just serial usb selected.
The ide gives this error.
No Teensy boards were found on any USB ports of your computer.
Please press the PROGRAM MODE BUTTON on your Teensy to upload your sketch.
pressing the program button did nothing.
The loader gave me this
10:48:22.093 (ports 5): callback C2C5
10:48:41.370 (post_compile 14): Begin, version=1.44, 1ms res time
10:48:41.376 (loader): remote connection 276 opened
10:48:41.380 (post_compile 14): Sending command: comment: Teensyduino 1.44 - WINDOWS (teensy_post_compile)
10:48:41.380 (loader): remote cmd from 276: "comment: Teensyduino 1.44 - WINDOWS (teensy_post_compile)"
10:48:41.385 (loader): remote cmd from 276: "status"
10:48:41.398 (loader): remote cmd from 276: "dir:C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\"
10:48:41.398 (post_compile 14): Status: 1, 1, 0, 0, 0, 0, C:\Users\JimD\AppData\Local\Temp\arduino_build_434248\, Millennium_V1-00.ino.hex
10:48:41.398 (post_compile 14): Sending command: dir:C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\
10:48:41.402 (post_compile 14): Sending command: file:Blink.ino.hex
10:48:41.403 (loader): remote cmd from 276: "file:Blink.ino.hex"
10:48:41.411 (loader): File "Blink.ino.hex". 10520 bytes, 4% used
10:48:41.418 (loader): remote cmd from 276: "status"
10:48:41.429 (post_compile 14): Status: 1, 1, 0, 0, 0, 0, C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\, Blink.ino.hex
10:48:41.429 (post_compile 14): Disconnect
10:48:41.440 (loader): remote connection 276 closed
10:48:41.661 (post_compile 15): Begin, version=1.44, 1ms res time
10:48:41.667 (loader): remote connection 792 opened
10:48:41.672 (loader): remote cmd from 792: "comment: Teensyduino 1.44 - WINDOWS (teensy_post_compile)"
10:48:41.672 (post_compile 15): Sending command: comment: Teensyduino 1.44 - WINDOWS (teensy_post_compile)
10:48:41.678 (loader): remote cmd from 792: "status"
10:48:41.690 (post_compile 15): Status: 1, 1, 0, 0, 0, 0, C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\, Blink.ino.hex
10:48:41.690 (loader): remote cmd from 792: "dir:C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\"
10:48:41.690 (post_compile 15): Sending command: dir:C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\
10:48:41.694 (post_compile 15): Sending command: file:Blink.ino.hex
10:48:41.694 (loader): remote cmd from 792: "file:Blink.ino.hex"
10:48:41.701 (loader): File "Blink.ino.hex". 10520 bytes, 4% used
10:48:41.709 (loader): remote cmd from 792: "status"
10:48:41.720 (post_compile 15): Status: 1, 1, 0, 0, 0, 0, C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\, Blink.ino.hex
10:48:41.720 (post_compile 15): Disconnect
10:48:41.730 (post_compile 16): Running teensy_reboot: "C:\Program Files (x86)\Arduino\hardware\teensy\..\tools\teensy_reboot.exe" teensy_reboot.exe "-board=TEENSY35" "-port=COM16" "-portlabel=COM16" "-portprotocol=serial"
10:48:41.731 (loader): remote connection 792 closed
10:48:41.737 (loader): remote connection 792 opened
10:48:41.783 (reboot 17): Begin, version=1.44, 1ms res time
10:48:41.783 (reboot 17): location = COM16
10:48:41.783 (reboot 17): portlabel = COM16
10:48:41.783 (reboot 17): portprotocol = serial
10:48:41.783 (reboot 17): Serial device COM16 will be tried first
10:48:41.783 (reboot 17): LoadLibrary cfgmgr32 ok
10:48:41.783 (reboot 17): LoadLibrary ntdll ok
10:48:41.787 (reboot 17): nothing new, skipping HID & Ports enum
10:48:41.793 (loader): remote connection 276 opened
10:48:41.798 (reboot 17): Disconnect
10:48:41.812 (loader): remote connection 276 closed
10:48:41.820 (loader): remote connection 792 closed
The ide gives this error.
No Teensy boards were found on any USB ports of your computer.
Please press the PROGRAM MODE BUTTON on your Teensy to upload your sketch.
pressing the program button did nothing.
The loader gave me this
10:48:22.093 (ports 5): callback C2C5
10:48:41.370 (post_compile 14): Begin, version=1.44, 1ms res time
10:48:41.376 (loader): remote connection 276 opened
10:48:41.380 (post_compile 14): Sending command: comment: Teensyduino 1.44 - WINDOWS (teensy_post_compile)
10:48:41.380 (loader): remote cmd from 276: "comment: Teensyduino 1.44 - WINDOWS (teensy_post_compile)"
10:48:41.385 (loader): remote cmd from 276: "status"
10:48:41.398 (loader): remote cmd from 276: "dir:C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\"
10:48:41.398 (post_compile 14): Status: 1, 1, 0, 0, 0, 0, C:\Users\JimD\AppData\Local\Temp\arduino_build_434248\, Millennium_V1-00.ino.hex
10:48:41.398 (post_compile 14): Sending command: dir:C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\
10:48:41.402 (post_compile 14): Sending command: file:Blink.ino.hex
10:48:41.403 (loader): remote cmd from 276: "file:Blink.ino.hex"
10:48:41.411 (loader): File "Blink.ino.hex". 10520 bytes, 4% used
10:48:41.418 (loader): remote cmd from 276: "status"
10:48:41.429 (post_compile 14): Status: 1, 1, 0, 0, 0, 0, C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\, Blink.ino.hex
10:48:41.429 (post_compile 14): Disconnect
10:48:41.440 (loader): remote connection 276 closed
10:48:41.661 (post_compile 15): Begin, version=1.44, 1ms res time
10:48:41.667 (loader): remote connection 792 opened
10:48:41.672 (loader): remote cmd from 792: "comment: Teensyduino 1.44 - WINDOWS (teensy_post_compile)"
10:48:41.672 (post_compile 15): Sending command: comment: Teensyduino 1.44 - WINDOWS (teensy_post_compile)
10:48:41.678 (loader): remote cmd from 792: "status"
10:48:41.690 (post_compile 15): Status: 1, 1, 0, 0, 0, 0, C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\, Blink.ino.hex
10:48:41.690 (loader): remote cmd from 792: "dir:C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\"
10:48:41.690 (post_compile 15): Sending command: dir:C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\
10:48:41.694 (post_compile 15): Sending command: file:Blink.ino.hex
10:48:41.694 (loader): remote cmd from 792: "file:Blink.ino.hex"
10:48:41.701 (loader): File "Blink.ino.hex". 10520 bytes, 4% used
10:48:41.709 (loader): remote cmd from 792: "status"
10:48:41.720 (post_compile 15): Status: 1, 1, 0, 0, 0, 0, C:\Users\JimD\AppData\Local\Temp\arduino_build_695028\, Blink.ino.hex
10:48:41.720 (post_compile 15): Disconnect
10:48:41.730 (post_compile 16): Running teensy_reboot: "C:\Program Files (x86)\Arduino\hardware\teensy\..\tools\teensy_reboot.exe" teensy_reboot.exe "-board=TEENSY35" "-port=COM16" "-portlabel=COM16" "-portprotocol=serial"
10:48:41.731 (loader): remote connection 792 closed
10:48:41.737 (loader): remote connection 792 opened
10:48:41.783 (reboot 17): Begin, version=1.44, 1ms res time
10:48:41.783 (reboot 17): location = COM16
10:48:41.783 (reboot 17): portlabel = COM16
10:48:41.783 (reboot 17): portprotocol = serial
10:48:41.783 (reboot 17): Serial device COM16 will be tried first
10:48:41.783 (reboot 17): LoadLibrary cfgmgr32 ok
10:48:41.783 (reboot 17): LoadLibrary ntdll ok
10:48:41.787 (reboot 17): nothing new, skipping HID & Ports enum
10:48:41.793 (loader): remote connection 276 opened
10:48:41.798 (reboot 17): Disconnect
10:48:41.812 (loader): remote connection 276 closed
10:48:41.820 (loader): remote connection 792 closed