Once the schematic helps you isolate the faulty capacitor, resistor, or IC, desolder the component and replace it using a hot air rework station. Safe Downloading Practices
Always disconnect the battery flex cable before soldering or checking component continuity with a multimeter in resistance mode. vivo u10 schematic diagram download better
Charging issues often stem from a damaged sub-board or flex cable, but if the issue is on the mainboard, the schematic guides you to the OVP (Over-Voltage Protection) IC and the USB charging lines. You can trace the 5V input from the USB port directly to the charging controller to spot where the voltage drops. Fix No Display / No Backlight Once the schematic helps you isolate the faulty
Switch your digital multimeter to . Place the red probe on ground (GND) and the black probe on the pins of the connector you are testing (e.g., the display FPC connector). Compare your readings with the known good values printed on professional schematic charts. A reading of 0.000 indicates a direct short to ground, while OL indicates a broken trace or open circuit. ✅ Summary You can trace the 5V input from the