My trusty 2.5 year old Garmin forerunner 305 appears to have bitten the dust tonight. It charged just fine and then I tried to turn it on for my run and nothing, and now it's not showing the battery charging screen either. So, does anyone know if it's revivable? And if not, what do you have and how do you like it? Should I upgrade? Because obvs I'm going to have to go buy a new one ASAP if it's truly dead.