Turn key makes hmmm sound, wont crank or turn over, dash lights on.

Turn key makes hmmm sound, wont crank or turn over, dash lights on. After cylinder 2 misfire code I changed coil packs and spark plugs twice in case bad part. Now makes a hmmm sound but won’t crank or turn over. Dash lights are on. F250 super duty 5.4 v8.