i bought an iphone off ebay which is jailbroken unlocked and was previously locked to optus. i want to restore the iphone and update the apple software.will my phone still be jailbroken? because i dont want it to be jailbroken because i will not use it. my provider now is with optus and i would rather it just be locked than jailbroken. so if i restore it will it go back to being locked to optus? will i screw anything up by doing this? can i cause it to end up not accepting any sim card? will i brick it or anything? PLEASE HELP ME QUICKLY!!! this is the 3rd time ive posted this question no one has answered!!!