New iPhone - wrong ID registered - what now -.-?

Gu
9

I bought a new iPhone. I connected it to my laptop and the synchronization used the wrong ID.

How can I delete the wrong ID if I have no information at all?

Or

Reset the simplest to the factory settings.

Gu

Already executed, but the ID remains.

Or

When resetting to factory settings, nothing remains.

Gu

But the password of the wrong ID is queried before you can reset

Gu

And the password, security questions etc. Nothing available

Lo

The ID remains clear unless you delete it beforehand

Or

If I reset it to factory settings, the iPhone is no longer linked to an ID. The iPhone is then in the state of an initial installation.

Lo

And how should he do it without a password?

Or

During synchronization, the iCloud lock is not activated at all, if he did not activate it subsequently, he does not need the PW for this either.

Isn't the question asked here.