Here I am trying to start my Soundsport Headphones, which are currently not powering up and available for pairing. I have done all that you've asked and am currently considering their return. I've used the Bose products through many years of airplane travel and never had such an issue with understanding directions. Hope to have this current issue resolved soon.
I also have the same situation, a couple of days ago there’s nothing wrong when I use it for music but just yesterday after I charge and unplug from a usb cable NO POWER at all no LED LIGHTS. The weird thing is that when I plug it back to the wall outlet using a USB cable the green light turns on but when I unplug the cable it WON’T TURN ON.