Is there any problem if I jailbreak through jailbreakme an iPhone that has not been restored or upgraded? I mean, I restored my iphone, then did a couple changes, set some clocks and weathers and backed it up. Now can i jailbreak it or I have to restore it all over again? I'm asking that because i'm not sure what the "backup" feature really backs up..So i'm afraid that it doesnt backup all data and I end up losing stuff. So, can I jailbreak a not brandnew restored phone? Is there any problem?