Read full flash files (read-back) from a working phone to restore a dead one Prerequisites: Before You Flash Windows PC: The tool requires a Windows computer (XP/7/8/10/11). USB Drivers: You must install Coolsand/RDA USB Drivers to ensure your PC detects the phone. Data Cable: A functional USB cable. Firmware File: Ensure you have the correct firmware file for your specific model. Charge Your Battery: Make sure the phone has at least 50% battery. Step-by-Step: How to Use the Coolsand/RDA Flash Tool

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