Hi I just got a new exchange with 4.3.3, 04.10.01 firmware. Jailbroke it with jailbreakme.com. My iPhone is laggy and not smooth. Called apple and they suggest a software update. They also suggested a hard reset which I did and still laggy and not smooth. Will the update help this issue? And is there a jailbreak for new software? Or should I go to the genius bar and get another device?