hello im new to here to the forum.i just want some advice about my iPhone5, i bought an Iphone 5 in ebay which is locked on 3 network here in uk i want to unlocked it now because i want to used other sim card but i cant because its not registered to me and i cant contact the seller anymore. is there anything i can do to unlocked my iphone 5 locked in 3 network uk? im planning to go to Philippines for vacation can i used it there? i also have other iPhone which i get from phones4u its a contract i haven"t activate it is it true that its unlocked until i haven't put the sim card which the carried is orange? what if i didnt put the simcard and go to philippines and put tany philippines simcard is there any chance i can used it? how about jailbreak is it advisable?whats the worst thing may happen to my phone?