Because, dear Big Daddy, everything only works within TTH's 'Operate-My-Device' mode and - as specified - NOT when the 730 starts up normal.
Even with a ttgo.bif present in the root, it won't start but hangs on the splash screen. I observe from ttgo's time and date that it does not renew itself.
Which I can only attribute being the reason why it doesn't start, in absence of any other reason I can think of.
I don't care much about ttgo.bif, I would wipe myself off with it, but the GO seems to care plenty...