Display issues- Phone turns on however nothing displays on the screen.

EAN: 8806094507249
Processor: Octa Core
Screen Size: 6.7 in, 1.9 in
Chipset Model: Qualcomm Snapdragon 8+ Gen 1
MPN: SM-F721BLBGEUB
Model Number: Sm-F721b
SIM Card Slot: Single SIM
Colour: Blue
Brand: Samsung
Network: Unlocked
Model: Samsung Galaxy Z Flip4
Connectivity: 5G, Bluetooth, Wi-Fi
Style: Flip
Operating System: Android
Features: Water-Resistant, AMOLED Display, Wide-Angle Camera, Ultra Wide-Angle Camera, Fingerprint Sensor, Dual Rear Cameras, eSIM, Dual Screen
Storage Capacity: 128 GB
Camera Resolution: 12.0 MP
RAM: 8 GB