How do many red dots appear on the screen of the newly bought mobile phone?

Irregular red dots appear on the screen of the mobile phone, which is the fault of the screen display layer.

As it is a new mobile phone, send it to the local brand customer service for testing as soon as possible.

If this happens after 7 days of purchase, users can choose to return it.

If this happens within 7 days, less than 15 days, users can choose to exchange goods.

After 15 days and within 1 year, customer service will provide free warranty.