problem iPhone 4s updat 9.3 icloud no name.

Can you describe the issue in more detailed way?

Hi

We need more infomation !!

But go to itunes main page apple ID sign out then sign back in.

That may help .

Cheers

Brian

You need to contact the seller and ask him to remove this iPhone from his list of devices. Otherwise, your iPhone will be a useless brick.

Find My iPhone Activation Lock: Removing a device from a previous owner’s account - Apple Support

You are welcome.