If you do not have the original SIM card or do not want to update firmware, proceed to step 4. 2. If you have the SIM card from your original network (network where iPhone is currently locked), insert it if You chose the SIM-free iPhone, you must insert your own Nano SIM card or get one from your supported vehicle and enable it to use iPhone. It works for the life of your Apple iPhone 5 unlock code. - Do I need to unlock the unlock code for Apple iPhone 5 every time I change SIM card? - No, even if you update the software (flashing) or reset the Apple iPhone 5 Unlock code, it remains permanently unlocked, no matter what you do. You must send us a video showing the device in question with the IMEI number of the device sticker and IMEI number that appears on the screen. By purchasing at MasterUnlockCode. How To Check If Iphone Is Unlocked For International Use on this page. com or an affiliated site, you assume full responsibility for complying with all local, national and international laws.