Our "Final Test" is a 12-Point Checklist. We don't just turn the device on. We test the keyboard, trackpad, all ports, speakers, microphone, Wi-Fi, Bluetooth, display uniformity, camera, and more. We sign off only when everything is perfect. Solution Hub Tech's promise of quality. Call +91-9711-330-329. solutionhubtech.com/macbook-repair-in-delhi.html