I have a question regarding the status of "lock/un-lock" of this phone. Will I be able to use this phone with any carrier in the US or in Central America? Can you confirm that you sell the phone "FREE" or UNLOCK? THANK YOU!! The same question for the iPhone 12 Pro/12 Pro Maxs . I thank you and looking forward to doing business with you soon. JCT reply:dear,our iPhone 12 Pro/12 Pro Maxs is unlocked worldwide,you can use GSM 2G and WCDMA 3G sim card on this phone....