Apple iPhone 15 128GB Black, Unlocked, 87% BH - Faulty

Phone turns on and charges, and is responsive. However, randomly restarts every 2-3 minutes. Suspected issues with hardware. I have had the phone since new and has: Genuine iPhone screen, camera, battery. The back has been replaced and can’t guarantee it’s an Apple part. For parts only - unless you believe you can fix this issue. No box or charger 🔌

eBay