Samsung Galaxy S21 5G 256GB FAULTY

Its in great condition, screen doesnt have single mark or scratch, it still has screen protector on. Sometimes when I charge it it seems to take charge and show the "50% charging sign" and then I turn it on and works for a short while but eventually turn back off again. It seems an easy fix maybe something is loose but i've already upgraded I think I have the box somewhere I will look for it but can't guarantee. Samsung Galaxy S21 5G SM-G991B/DS - 256GB - Phantom Grey (Unlocked). This item is in the category "Mobile Phones & Communication\Mobile & Smart Phones".

The seller is "contra-wear" and is located in this country: GB. This item can be shipped to United Kingdom.

Cosmetic condition: Excellent
No accessories: Yes
EAN: 8806090892738
Processor: Octa Core
Screen Size: 6.2 in
MPN: SM-G991BZAGEUA
Model Number: SM-G991B/DS
SIM Card Slot: Dual SIM
Colour: Grey
Brand: Samsung
Network: Unlocked
Model: Samsung Galaxy S21 5G
Connectivity: USB Type-C, 5G, Bluetooth, Wi-Fi, NFC, GPS
Style: Bar
Operating System: Android
Features: Proximity Sensor, 8K Video Recording, Gyro Sensor, Fast Wireless Charging, Infinity-O Display, Telephoto Lens, Ultrasonic Fingerprint Sensor, Facial Recognition, Wide-Angle Camera, Accelerometer, Barometer, Ultra Wide-Angle Camera, Triple Rear Camera
Storage Capacity: 256 GB
Camera Resolution: 12.0 MP, 64.0 MP
RAM: 8 GB