iPod Nano 1st Gen Won't Start Up

[xxxquandomxxx]

I've been using Rockbox on my iPod for awhile now, nothing bad has happened until today. I decided to charge my iPod just now. So I plug it into the computer and it gets stuck at the Apple symbol. I tried reset the iPod by holding the middle button and MENU. The iPod shuts down and never starts back up. I am now trying every possible way to start it back up. And no, it is not a battery problem because I never let the battery drain lower than 30%. What do I do now?