The Corner fixit man.
ranganv731 posted an answer for this Blackberry 9720 3G, 5MP, OS 7.1, Qwerty Keyboard, WIFI Factory Unlocked World Mobile Phone - Black:
"The is needs to be flashed. Take it to a repair shop"
ranganv731 posted an answer for this Apple Iphone 4s I Phone 4 S Factory Unlocked Sim Free 16gb - White:
"Touch the App Store icon(blue square with a A on it). That will take you to the apple App..."