Greencell Diagnosable iPhone 15 Replacement Battery with Adhesive Strips 3349mAh (Configuration Ready)

Why iPhone battery won't pass diagnostics after replacement: 1. Check Wi-Fi. A strong and stable network connection is required for diagnostics. 2. Non-original parts installed? Parts like the earpiece, vibration motor, or camera module do not have separate diagnostic interfaces and cannot be diagnosed together with the battery and screen. 3. Screen recently replaced? Apple's backend system can detects recent part replacements. It takes about one month for the system to fully recognize the new screen and pass diagnostics. This does not affect normal battery use. 4. Both screen and battery replaced at the same time? The system may not be able to determine which part to prioritize for diagnosis. As a result, either the battery or the screen may fail diagnostics (randomly). This is a temporary system limitation and does not affect daily use. Wait one month and re-run diagnostics for the failed part. If diagnostics fail the first time: Run the diagnostic test 1–2 more times. You do not…