You can solve light solution for any android phone easily from this pic
- first check vbat 3.7v on input capacitor
- check coil and 3.7v on coil if damage change it
- check light driver ic it is 6 pin
pin 2 ground
pin 3 ground with resistor
pin 4 vbatt after coil
pin 5 output voltage 22v-35v it is pass output capacitor and diode to display connector
pin 6 tigger coming from cpu
- If light driver ic short or no output voltage change it,befor change light driver ic check diode if damage change it.
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