M y screen went black. How can I get my home screen back

See: If your iPhone, iPad, or iPod touch won't turn on or is frozen

If none of those solutions worked, then Contact Apple Support

Don't know why I didn't mention this earlier. If you purchased your iPhone 8 Plus new, directly from Apple, a carrier or an Authorized Dealer, and still have the original box, the Serial, IMEI & Model numbers are located on the back.

Go to Settings>General>About and you'll find your model number, serial number, IMEI number etc.

(Settings is the icon with the gears on your home screen)

With the exception of the model number, DO NOT POST ANY OTHER INFO!!!

Sorry, I forgot what this thread was about.

See the following article: Find the model number of your iPhone, iPad, or iPod touch

"On an iPhone 8 or later, to find the model number, remove the SIM tray and look in the SIM tray slot. Make sure that you're in a place with bright light overhead. The model number is on the upper side—the side with the display."

You're welcome.