I bought my first iPad (mini) ever last Friday and there was an issue with the lock screen. Went to the store and they gave me a new one today and now it's asking me to update. When I thought about the update and how it might have been the problem, I wanted to ask if it's possible that the problem I had with the first iPad was due to that update at all? And whether I should update or not.. I'm really thinking of Not updating. What do you guys think?