: Solutions for fluctuating displays or non-working lights often involve reballing the CPU or checking the Vph line coil. : Specific Charging Ways Solution
Trace the signal path from the antenna gold pins to the RF front-end module. oppo a15 schematic diagram pdf fixed
Smartphone repair requires professional tools (hot air rework station, multimeter, microscope) and expertise. Improper repair can permanently damage the device. Always disconnect the battery before working on the PCB. Conclusion : Solutions for fluctuating displays or non-working lights