A:AnswerPut your finger on the bottom of the screen and swipe up, all the apps will be displayed on the screen. Then put your finger on each one and swipe up.
A:AnswerI would personally do a factory data reset. You may just have too much on it making it run slow, if you upgrade your cloud storage you can also send your photos directly on to it and are able to erase them for extra storage. Sometimes it's just too low on storage space causing it to lag.
A:AnswerYou will probably have to take it back to Best Buy and they will give you a new one. This happened to me as well when I bought a MacBook that was previously used. I tried fixing it with apple, but after a week of back and forth they told me it was impossible for them to remove the old user cloud from the device and that BB would give me a new one.
A:AnswerYou can purchase apple care on any apple product. It’s not really worth it though unless you plan on giving it to a kid or you’re extremely clumsy. This is already the cheapest model.
A:AnswerI’ve been there before. When it happened to me I had to contact Apple support. I would suggest email. They will had to reset it for me. Be prepared to provide the serial number, date of purchase, and receipt or proof of purchase. The process actually took several days.