[Spydc]

Need help.. My phone's screen all of a sudden went out. I had the phone flashed with a custom rom so I can't flash back because I can't see. I was going to try to reflash back with an microsd card but now my phone doesn't even turn on because i don't feel the vibration when you press the power button. Can I still go into a sprint store or is this definitely a case of asurion and paying $100????