an hour ago,i cant use twitter,whatsapp n fb..i thought its about line..then i restart it..bcause my iphone jailbreak 4.3.1 so i need to wait for option where i need to accept n bla..bla..bla.. but it didnt appear..so i reboot again..so until just now its almost like 20 times..then i tried to open simcard n put it again..same thing happen..the option didnt come out..then i asked some my friends he said if i had installed something from cydia i need to remove it..recently i installed My3G to use my facetime using 3g n no need wireless..so i try to delete it but until now it just show blackscreen wit circle loading in the middle..its almost one hour..so help plssssssss..i dun know what to do...