2006 S40 won’t start.

[Rynlhayes]

I just bought an 06 s40 yesterday. We had to jump it at the dealership because the battery was dead. No problem, test drove it and everything was great. Jumped it again to drive it home drove great. Took the battery in and had it tested and bought a new battery today. Put it in and it will turn over but won’t start. Push started it and it started and immediately shut down. Now won’t start at all? Ideas??