DELL INSIPRON 14 No power blinking orange/white

[noipi]

i have DELL INSIPRON 14 5410 2-IN-1 blinking orange and white when charger connected, i tried to find Boardview or schematics but cannot find. i opened the unit and the motherboard model number is 203071-1 Watchmen that i found written on motherboard. Where should i start because when i press power on, nothing happens. but i checked the main power rails voltages are enabled and the charging for battery LDO is 3.3 volts.

[mcplslg123]

In absence of schematics,always do basic things

01.Observe the mb for corrosion/liquid spill etc under scope
02.Check dc-in mosfets voltages and whether 19V reaches CLR
03.Voltage on charging coil(should be 13V or similar approx as NVDC is being used very likely
04.Check whether 5V/3V is generated or not?
05.Check PS_ID is present or not.