IPhones officially sold in Russia (certified by Rostest) can work with any telecom operator. You just need to change the sim card.
In some countries iPhone are sold with a carrier contract allowing the device to be used only on their networks. Это распространено с США, где большинство телефонов продается с контрактом AT&T. These phones are called locked. Blocking the possibility of changing the operator is implemented in the phone at the software level and is checked at the time of the firmware update. Checking the binding to the operator (unlock status) is quite simple …
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To obtain information about the unlock status, you need to know the device identification number, IMEI (International Mobile Equipment Identity – 15 digits).
You can check if you have an iPhone by typing # 06 # on the keyboard.
Or by opening the Settings app Setting> General> About This Device.
On this site emag.radiom.ru or www.imei.info enter IMEI number. If you have Locked in the fields, then the phone is locked. The operator's name is listed below.
