In this video, we will explain the complete process of CPU Reballing for Oppo, Vivo, Redmi, Realme and all Android phones from start to end. If your phone is giving Dead, Auto Restart, Hang Logo, No Display, No Power On or Overheating problem, then it is often due to CPU BGA Fault or Solder Ball Damage. In such a situation, CPU Reballing restarts the phone. This video covers: ✔ How to Remove a CPU ✔ How to Clean a CPU ✔ Using a Reballing Stencil ✔ How to Apply Solder Paste ✔ Hot Air Gun Temperature Setting ✔ How to Reball a Perfect Round ✔ CPU Refix and Reheating Method ✔ How to Check for a Solder Ball Short ✔ How to Avoid Motherboard Pad Damage ✔ Works with all OPPO, VIVO, Xiaomi, Realme, Infinix, and Tecno phones This video is for technicians who want to learn advanced mobile repair and perform CPU reballing at a professional level. 1️⃣ Step: Motherboard Preparation Heat the board lightly on a preheat station to 150–170°C. Cleanly remove the shield and gum. Apply flux around the CPU. 2️⃣ Step: CPU Removal Hot air gun temperature: 380–420°C, Airflow: Medium Lift the CPU slowly (do not apply pressure). Let the board cool. 3️⃣ Step: CPU Cleaning Remove old solder balls from the CPU surface. Clean the PCB pad as well. Smooth the surface with flux and solder wick. 4️⃣ Step: Stencil Fitting Align the CPU to the correct stencil. Apply high-quality solder paste. Clean off excess paste. 5️⃣ Step: Reballing Heat gun temperature: 320–340°C Heat in a circular motion Let all solder balls become perfectly round Let cool down after reballing is complete 6️⃣ Step: CPU Refitting on Board Apply flux to the board Place the CPU at an exact angle Heat at 380–400°C until auto-aligned Check the CPU sitting perfectly 7️⃣ Step: Final Check Check for continuity and shorts with a multimeter Assemble the board and test for power If the phone was stuck on the logo, it will now turn on Style) CPU reballing Oppo CPU reball Vivo CPU reball Android CPU repair CPU short repair BGA reballing tutorial Mobile CPU fix Dead phone repair Oppo Vivo motherboard repair CPU BGA solution Reballing step by step Phone CPU removal Mobile repair tutorial CPU overheating fix CPU auto restart solution