u4020 critical to boot?
I'm just researching a water damaged iPhone SE that initially had a VCC_Main shorted that was alleviated by removing one cap.
When connecting to power now, it draws 0.43mA / 0.44mA and U4020 LED Driver gets really hot (freeze spray used to detect).
It controls the "LED Driver" and schematics says it is critical. Is it critical for boot? or if we remove this should we be able to artificially use a light and go into the screen layers?
Es esta una buena pregunta?