Yesterday morning my Unrooted Sprint m8 randomly rebooted while the battery was at %100. After shutting down the phone was stuck on the boot screen that shows "HTC" for a few minutes until it turned off completely. The phone is completely unresponsive to inputs as well as charging. When plugged in to a wall port the phones charging light does not come on. But when i plug it into my laptop I get a ding from the laptop meaning that it is detecting something. In looking for an answer I figured out that this might have been a result of my battery "discharging". I connected it to the proper charger several times for several hours and no dice. I have also heard the suggestions and done the following; held power + up buttons, held power + down buttons, held all three buttons for 2 minutes, none of these solutions work for me but they have for other people. My phone is still in a state that appears to just be dead. Although when you hold the Power button + Vol Up + Vol Down for about 2 min 30 sec while on a charger or plugged into a computer you get a flash of orange light quickly from the charging indicator. When connected to the lptop and this is done I can hear the phone disconnect and immediately reconnect to the laptop as if the laptop discovered something. Can I please get some help here this is awful and is ruining my week.