i was driving down the road and my service 4 wheel drive light came on on 1999 Chevrolet Blazer

i then lost all power and it would not start at all it has a brand new battery and when you turn the key it does nothing at all it has full power to everything but just wont start the lights for the 4 wheel drive would flash before the service 4 wheel drive light would come if you have any suggestions please let me know i really need to get back on the road

Asked by for the 1999 Chevrolet Blazer
Why does it have a "brand new battery" problems with it before this? Had the charging system checked? Battery cables clean, good and tight?
Just because you have lights doesn't mean you have enough battery power to crank the engine!