Hp 15-cs laptop 5 times dc jack blinking white

[ahmarzo]

I have two laptop hp15- cs1000tx with motherboard part no DAG7BDMB8F0 REV F

First one was not powering on when battery is connected the first n channel MOSFET was short and after changing the laptop started on power and battery and charging fine

Second laptop has water damaged on ram ic after cleaning and changing the ic the laptop is working fine now

But now I have power led continuously blinking 5 times in both the laptop even after shutdown and when it is powered on the led keeps blinking 5 times .both the laptop is charging and working on both battery and ac adapter .I have already updated the bios on both laptop.have tried pressing the power button for 15 second after removing power and battery but the blinking starts as soon as I connect the battery.
Help me in solving this problem please thanks.

[mon2]

Test the 2nd dcin MOSFET.

[ahmarzo]

changed the second mosfet but same problem

[mon2]

Which charger IC is onboard? Is there a schematic available for this unit?

Review the VCC pin on the charger IC and there should be a dual diode present to power the charger IC from battery or main adapter voltage. Confirm this dual common cathode diode is not defective or is leaking. This is a common fault of such failures.