I had the same thing happen to mine, I though tit didn't survive the trip to Aus from the UK via US...

I thought I would open it and fix myself (costs me too much to send it back) and I pushed the wires, etc, and it sort of came good.

Then I realised there is like silicon/hot glue put on the connectors, take this all off first then undo the cables from the drive(s) and then I used electrical contact cleaner and sprayed them, then re-sat them.

After that it came good, I seated the cabling nicely with some zip ties to keep it secure but easy to remove if I ever need to in the future.

Good luck with your unit, sounds very similar to what I had to do this afternoon.

Des.