Marcello Colino ifixit does not fix devices. Here you can buy parts and get free advice on how to fix things yourself. Check the charger first with a voltmeter to see what the output is. Check your charging cable. Lastly, Nook's have a weak charging port, you may have to use these guides to get to the charging port. It can be replaced by soldering a new one in place. It can be difficult to find that port.