I'd be more than happy to assist you. It's likely that your charging port is defective (not uncommon). Samsung has a 1 year warranty, so I'm afraid it's out of warranty. When you say it won't recognize any charger, can you tell me more about the chargers you've used that didn't work? Could it be the outlet you're using? Have you tried another outlet? Also those particular tablets are very PICKY about USB cables. I know it sounds ridiculous, but purchase a brand new USB cable, and try again before you give up. Also, check the charging port make sure there's not dirt, lint, debris in the port.