HTC One M9 won't swing on blinking green light, what should I do?

[AC Question]

HTC one m9 won't swing on blinking green light

Charging now for 30mins back getting warm still not turning on

 

[B. Diddy]

Re: HTC one m9 won't swing on blinking green light

Welcome to Android Central! Swing on? You mean it won't power on? Had you used it until the battery was at zero and the phone shut off? Let it charge on a wall outlet for at least 4-6 hours, undisturbed. Then try powering on again.