I recently replaced my iPhone 4S front screen,
Whatever I do now, it keeps saying "searching".
Removing sim card doesn't make any difference,
iPhone doesnt ask for code when I replace sim card.
I'm sorry, I did not know you were standing there and watched him reasemble it,
(it is actually very easy to NOT plug in the ant properly).
So sorry to have "butted in" (I won't in the future)