Power off the phone immediately
Remove the case and screen protector
Back up your data
Check whether the damage is only to the glass or also the display
Avoid pressing on cracked areas
Use clear tape or a temporary screen protector to prevent cuts
Wear gloves if glass is loose
Replace the screen at an authorized service center
Use a professional repair shop if the warranty is expired
Replace the screen yourself only if you have the proper tools and experience
Test the touchscreen, display, and fingerprint sensor after repair
Restore the phone and verify all functions work properly