Oppo A9 2020 Booting (Dead) Problem fixed by

Описание: 📱 Oppo A9 2020: Dual Repair | Wi-Fi IC Replacement & eMMC Reballing
In today’s video, we tackle two common hardware issues on the Oppo A9 2020 (CPH1937/CPH1938). We start by diagnosing a "Wi-Fi not turning on" issue and replacing the Wi-Fi IC, followed by an eMMC reballing procedure to fix hanging/dead boot issues.
🛠️ What’s Covered in This Video:
Diagnosis: Testing the Wi-Fi module and checking for short circuits around the IC.
IC Removal: Safe techniques for removing the Wi-Fi IC without damaging surrounding components.
eMMC Procedure: Careful desoldering, cleaning, and precision reballing of the eMMC chip.
Installation & Testing: Soldering the chips back and performing a full boot-up test.
🔧 Tools Used:
Soldering Station: [Brand/Model]
Hot Air Gun: [Brand/Model] (Temp: 350°C, Air: 40)
Stencil: Oppo A9 2020 Universal BGA Stencil
Flux/Solder Paste: Mechanic/Relife 183°C
⚠️ Disclaimer: Mobile motherboard repair requires professional skills and specialized tools. Attempt this at your own risk. We are not responsible for any damage caused to your device.
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