I have a 2004 Ford 150,won't turn on after programming new key?

I have a 2004 Ford 150, won't turn on after programming new key?

Ford - found on road dead

Who programmed the new key?

The key itself isn't programmable, other than syncing the lock and alarm functions. What you have to do is get a dealer with the Ford software to program the car to accept the new key

Unlock all doors using the power door lock switch on door panel.
Turn ignition from OFF to RUN 8 times within 10 seconds, with the 8th time ending in RUN…
Within 20 seconds press any button on first keyless remote…
Within 20 seconds, press any button on second keyless remote…
Turn ignition to OFF.