Sad smiley on Windows phone after updating, what could it be?

Is any one facing problem of sad simily after updates. the final solution is download Windows Device Recovery tools and attached your device follow the instruction. It will restore the phone but don't forget your pull your sim card and memory card.

Thanks

you don't really have to pull the sim ( i never did) and pull the sd if you want to make sure you don't loose data on it.