Question: How did Lor San Tekka get that map?
Question: This an odd question, but why are there no smartphones or smartphone-like devices in the SW universe? These are reasonably advanced pieces of technology that would be appropriate for such a time period. A few situations would also have been easier with phone communication. Smartphones were still very new when "Revenge of the Sith" was being filmed, so I understand why the original trilogy and prequels don't show them - the creators were not thinking about them.
Answer: You basically answered your own question. The Star Wars universe is in the future and its a future without any smart phones. It would be kind of weird if out of nowhere smart phones would pop up everywhere in the universe as if its a new invention, whilst its supposed to be an old invention. They simply have different ways to communicate with each other, more advanced ways are needed. For example distances between people is a lot larger, across the galaxy, so you'd need a lot more that just a smartphone to communicate with people, they use other devices on board starships and bases so the smartphone disappears as having both feels like overdoing it.
It is not set in the future, hence the very first words on the screen of each movie. A long time ago, in a galaxy far far away. Now as far as the cell phones go, they do just fine with their communication. Making interplanetary calls on cell phones is not needed.
You're right, I always forget that part.
Question: Why does Kylo Ren want to finish what Vader started? Why couldn't he just leave things the way they were? Why would he turn to the dark side just to finish what Vader started?
Answer: We don't know the reasoning behind Kylo Ren's motives just yet, but that will likely be gradually answered as the story unfolds in the upcoming sequels. Knowing too much about Kylo's backstory and his underlying motive early on would ruin the plot and eliminate any suspense leading up to the reveal.
Answer: According to the 2017 book Star Wars: The Visual Encyclopedia, Luke Skywalker gave Lor San Tekka the map fragment to his location before he went into hiding on Ahch-To.
Sierra1 ★
Why? Didn't he want to stay hidden?