I'm sorry to hear that you're having this issue with your Blu-Ray player.
Try pressing and holding the STOP button for 15 seconds. It should either display the language menu option or restart. If that doesn't help, then the unit may need to be serviced.
My samsung blu ray C5000 won't reset and keep showing setup on the display. it wont also play load to play any DVD/CD. The problem started while I was trying to reset it because it wont conect to internet TV, keep saying No signal, check internet connection and source selection.the blu ray is connected to samsung 46C6500 and I have At&t uverse. Samsung customer service was no help. Any input will be greatly appreciated.