Display backlight continuously or intermittently screen

You do not say what exact Mac /model /year /size /retina /touchbar is this ?

See if you qualify:

https://www.apple.com/support/13-inch-macbook-pro-display-backlight-service/

jepelucho wrote:

It’s a 13” MacBook Pro retina 2 thunderbolt

serial number: C0XXXXXXXXC1

could you tell me if the warranty is covering my Mac?

The link above states clearly—

Eligible Models

• MacBook Pro (13-­inch, 2016, Four Thunderbolt 3 Ports)

sold between October 2016 and February 2018

So with that information, then yes it seems you are covered.

MacBook Pro 13.3" - Late 2016