How We Guarantee the Quality of Every Pre-Owned Phone

In today’s competitive mobile market, reliability and quality are the foundation of long-term business success. For distributors and resellers, offering pre-owned smartphones is a cost-effective way to meet growing customer demand. However, when it comes to second-hand electronics, trust and consistency are critical. At Qdaten, we take quality control seriously. Every device we supply goes through 19 rigorous tests to ensure it meets the highest industry standards—so our partners can focus on growing their business with confidence.

 A Comprehensive Quality Control Process

We combine manual inspection with advanced software testing to deliver phones that perform like new. Here’s a closer look at our testing process:

1. Visual Inspection: We check for scratches, dents, or damage to ensure a great-looking phone.
2. Touch Test: Every touch screen is tested for accuracy and responsiveness.
3. Button Test: Power, volume, and home buttons are carefully inspected.
4. Screen Color Testing Aging Degree: We verify accurate color display and brightness.
5. Telephone Sound Test: Ensure the earpiece is functioning properly.
6. Gravity Test: The built-in gyroscope and motion sensors are checked.
7. Bluetooth Test: Connectivity with accessories and other devices is verified.
8. Flashlight Test: We ensure the flashlight is bright and functional.
9. Front Camera Test: Crystal-clear selfies, every time.
10. Back Camera Test: The main camera is inspected for sharpness and focus.
11. Face Unlock Test: We confirm smooth and secure face recognition.
12. Fingerprint Unlock Test: Biometric security features are fully functional.
13. Ringtone Test: Every speaker delivers clean, vibrant sound.
14. Vibration Test: Subtle and precise vibration feedback is tested.
15. Audio Recording Test: We check microphone clarity for voice notes and calls.
16. Compass Test: Navigation and orientation features are reliable.
17. Headphone Test: Wired headphone ports are inspected for stable sound.
18. SIM Card Detection: Devices are tested with SIM cards to ensure connectivity.
19. Charging Test: Charging ports and battery health are thoroughly assessed.

At Qdaten, we understand that our partners rely on consistent quality and dependable supply. That’s why every device we provide undergoes our 19-step quality assurance process, ensuring performance, durability, and reliability. By choosing Qdaten, distributors and resellers gain more than a supplier—they gain a trusted partner committed to supporting business growth with pre-owned smartphones that meet the highest industry standards.