I had a problem with my earphones like this once and i tried to find a way to fix it and I did. Check to see if their is something stuck inside the earphones slot. Or it is time to get a new Ipod. I am sorry if you have to get a new one. I hope this helps.
Once again, I have many electronics and once more, I have had no luck finding this problem on my computer. Your computer may not be compatible with that version and it is a little messed up saying it is when it is not compatible. Something LIKE this happens to me sometimes on other electronics. You can either reset your computer or try to find a way to update it so that it is compatible with that version.
I have many electronics and many problems with them but none this strange. Try to lightly tap the nook at the top to see if it just pops out. If that dose not work, look up how to take apart the nook and take it out and buy another charger. I hope this helps.
Well, it depends on why it got stuck. If you put something in it and then it got stuck, you will have no choice but to take it to a shop to get it out. I had this problem once and the reason mine got stuck was because i pushed it into the slot too hard. Try wiggling it out very slowly and softly so that it dose not break the electronic. if that does not work just take it to the shop. its the easiest thing to do.