DJM-900SRT

Hello,

We have a DJ, who left his DJM-900SRT at our club. 

One of our managers, who didn't realize it wasn't ours, updated the firmware.  The unit seemed fine and indicated success.  The next time we went to power on the unit, we only got 5 blinking power lights.

I took it in for service and they said that the main board was no good.  I got the distinct feeling that they had no idea what the issue was.

5 blinking lights supposedly means power issues.  

Anyone have any ideas?