Never understood why so many boards are not fitted with an external POWER button connector. It makes them very difficult to power on unless you have access to the power button that is fitted to the board, and not something that is ideal at times. I want to use the T4 in a sealed enclosure so I need a way to power it on. Looks like the board mod is needed to do this upon power application.
Luckily for me, I use the Nano PC T3 Plus in one of my other designs and the power and reset are taken out to the GPIO headers. The T3 is a very nice little reliable board for me.