Troubleshooting iPad Pro 12.9" screen issues after replacement! You've done an impressive job replacing the battery and screen. Let's identify potential causes for the non-functional screen: *Connector Issues:* 1. Improper connection: Verify screen connectors are securely attached. 2. Damaged connectors: Inspect for bent or broken pins. 3. Incorrect orientation: Ensure connectors are aligned correctly. *Screen Compatibility:* 1. Incompatible screen: Verify the new screen is compatible with iPad Pro 12.9". 2. Incorrect screen configuration: Check if the screen requires additional calibration. *Power and Signal Issues:* 1. Faulty backlight: Check if the backlight cable is damaged or disconnected. 2. Power supply: Ensure the power supply lines are intact. 3. Signal interference: Verify no interference from nearby components. *Home Button and Touch ID:* 1. Improper home button installation: Check alignment and secure attachment. 2. Touch ID issues: Ensure the home button's fingerprint sensor is properly...