Which Nook do you have? I'm guessing it's the NookColor (NC) if it's 5 years old or the Nook 1st Edition (N1E). But I could be wrong. I guess the NookTablet (NT) and NookSimpleTouch (NST) could also be 5 years old.
What exactly is the problem? You said it's not taking updates? I'm not positive, but I don't think the NC, NT, N1E or NST have had updates in several years. The NST doesn't have a feature that accesses eMail to my knowledge.
Your post is marked "unique_400 Jun 17, 2016 12:18 PM", but came up as the newest post in my feed, on July 18, 2016.