You won't get any help with that amount of information.

"No Start" can mean all sorts of things - so,
Did the starter engage but engine would not start?
OR..........
Did the starter not even engage?

That would be where I would start. Given the car started later, my guess (and it's a guess, since you gave no information), would be that the starter refused to engage AND that if you'd left the key in the "ON" position for maybe 45 seconds, you would have heard the engine fan warp up to high speed - both indications of a faulty RCM.

If so: Yank the RCM and send it to DJ for reworking and you will be fine.