Блокування оператором

Sorry, I am not sure what you mean by operator.

If that iPhone is locked to the previous owner, then you must contact that person and ask they unlock the activation code. You will not be able to use that iPhone until they unlock it. Apple cannot help.

If that phone is locked to a cellular carrier, you have to contact them. Apple cannot help.

If neither of these are true for your situation, then let us know what any error message is saying.

You have to contact Apple Support directly. They can help. Select Support from this page.

Google translation:

Ви повинні звернутися безпосередньо до служби підтримки Apple. Вони можуть допомогти. Виберіть Підтримка на цій сторінці