Quote Originally Posted by PaulStoffregen View Post
Here's a fix.
Using p#74 T_sermon it Changes USB Plug in behavior!:
Not Serial ??? @ millis=400
Teensy Serial Online !!! @ millis=531

T:\tCode\_TEENSY_INFO\StartPrint\StartPrint.ino Mar 9 2018 09:06:23
YES Serial !!!
Interesting to see the PC buffers the early messages.

Upload restart better but still looks like this - perhaps this is the handoff delay after Upload/restart?:
Not Serial ??? @ millis=1401
Not Serial ??? @ millis=1901
Teensy Serial Online !!! @ millis=2130

T:\tCode\_TEENSY_INFO\StartPrint\StartPrint.ino Mar 9 2018 09:07:55
YES Serial !!!
Faster Teensy online under 400 ms will be nice.