Black screen
My iPhone has been used less than one day The screen is black, nothing I do will work
iPhone 14 Pro Max
Hi 6768_40,
welcome to the Apple Community.
Congratulations on the new iPhone!
See if this article from Apple support helps :
If your iPhone won't turn on or is frozen - Apple Support
hope this helps,
else contact Apple support through the link in the article.
or
Apple phone numbers around the world
Contact Apple for support and service - Apple Support
All the best :-)