When i came home i called apple to check whether my phone is locked or not and they said that its locked to US Verizon even though when i checked on iphoneimei it said sim status unknown. I put my 2degrees (NZ carrier) in today and it worked fine. I got into the settings and turned off the automatically part of carrier and there were 3 options for me to choose 2degrees vodafone and telecom. Because of that, im quite confused abt whether my phone is locked or not since im from vietnam so i want to know if i can use vietnamese sim card when i go home. Thanks for your help@verizon