The camera fell off my laptop when I turned it in an attempt to view your picture.

Yes, the “so” in this text has a meaning similar to “therefore”.

"Proper" is not necessarily a rule of grammar and more of a condition of personal preference. " So" is a conjunction....so it is always correct to utilize it.. especially if the writer is writing dialogue... Then it's just a manner of a character's speech.. regardless if it is context of a particular vernacular...and thus there are no ' proper ' syntax rules applied.