Hi Folks,
I'm having difficulties to put this macbook air into target disk mode.
Pressing T or ⌘+T during start up doesn't do anything, it will still boot into osx.
Pressing option during start up, and then T also produce the same result (Apple menu with loading bar shown and boot into osx)
System Preferences >> Start-up disk >> Target disk mode button is missing too!
I've tried wiping the machine, upgrading from 10.12 to 10.13
anyone seen this before??