Hey chookaboo,
Do not flash the firmware now! Your player is hacked so you try this:
Memory Hack Removal
It will probrably work better after you did this. If you flash the firmware, you will probrably brick it!
K9LAGO8UOM -> 16 gigibit = 2 gigabyte. So your player is actually 2 GB and not 8 GB. You can choose for the memory hack removal process, or contact the eBay seller to get a refund.