hanry6014

When I am updating my HD 300's flash memory, an error message show up and the updating progress is stopped. So I disconnected HD 300 from my computer. Now every time I try to turn on my HD 300 it says "DSP boot failed" on the screen for 2 seconds, and a blank screen followed. It won't respond to anything now. It can't be connected to the computer either. I don't know what to do, please help me!