My NPC won't power up after I tried to update firmware.

Yesterday I was using my NPC to listen to records all day on July 4th, when I realized I didn’t have the most current firmware. I had .48 and decided I wanted to update to .54. I download the update to a thumb drive, I powered off the NPC, and when I went to power it back on nothing happened. I removed the thumb drive and since then the NPC wont power up. It was plugged into a PS 10, and the cord was a upgraded power cord. I tested the power cord and that is not the problem. Any thought or suggestions before I contact PS Audio on Monday?