Hi Brad
Congratulations with the new L5!
Have you read the sheet (inside the box of the L5) with title “Thanks for buying… … how to get started with your phone”
If so, then the first time boot process will lead you through some basic steps to get started.
If you own a Linux Laptop/Desktop I would suggest to make a back up of the currrent state of the phone. This can be done by using “Jumpdrive”.
There are several messages about “Jumpdrive”.
A good start you can find here.