Huawei mobile! Before I open my phone, there's an advertisement on the screen! How can I remove the ad?

Huawei mobile! Before I open my phone, there's an advertisement on the screen! How can I remove the ad?

This is not advertising that is a branding. This means that the phone comes from someone who got the phone through a contract.

But you can't remove it unless you want to have a new operating system on your phone.

That new cell phone must be loaded anyway anyway before you put it into operation. This time is intended for users to study the operating instructions.