I came across this site a while back during my many searches for a fix for my devices and thought to return to let anyone know what I had found should anyone still be looking or come across it as I did in the future...
If you find yourself getting stuck with your PS Vita not powering on and the whole orange light situation there is a quick fix that actually does work I recently found...
Do exactly these steps in this order:
Hold down the R button, the PS button and the Power button all for approximately 3 seconds and your device will run a soft reset! (Note: I did these steps with my devices plugged in!)
But I can honestly say that this fixed my problem for me so I hope that anyone else running into this sees this like I did and gets the help they need!