What else do I need to bring other then the flash seat scan do I need to bring a drivers license or I do that online

Bringing a license would be useful for if you want to order alcohol, but they didn’t check my iD when coming into the arena

Nope they just scan your code

I've never had a license required. Although it never hurts to carry one at all times.

If you have the app on your phone you will be fine. You can link a DL or a credit card to you account online as a backup incase the app isnt working.