HP G62 Laptop Won’t Power On, 4 Blinks, Missing 5V Rail, Possible Charging IC Issue

LAPTOP HP G62 (FOXCONN MOTHERBOARD).

I have an HP G62 laptop. When I press the power button, it doesn’t turn on and the LED next to the power input blinks 4 times.
Even with the battery connected, the same thing happens.
I measured the 19V on the motherboard, and they are fine. The 3.3V rail is also OK, but the 5V rail is missing.

Additionally, when the battery is disconnected, the laptop does absolutely nothing, and the power supply only shows 10mA consumption but doesn’t turn on.
When the battery is connected, the charger tries to power the board, but every 4 seconds, there seems to be a short circuit, and then it tries again.

I measured at the input (e.g. the 19V rail), and as soon as the short occurs, the voltage drops to 6–7V, then rises back up to 19V and the cycle repeats.

What could be the problem? The battery or the charging IC?

I tested all the input MOSFETs off the board and they are fine.

Measurements on the charger.
- since the field measurements are good, perhaps the charger does not "open" them


Which board from Foxconn for the HP62 ?

- HP G62 ( Foxconn Safina PM_A_HPC_S MV_MB_V1)
under AMD cpu
charger max 8731
SM you have for free Link

- HP G62 ( Foxconn Federer PM_I_HPC_S MV_MB_V3 )
HM55
disc gpu HD5470 (216-0774009)
Intel P6200
Mobo under Intel Quanta AX1 ( DA0AX1MB6F0 )

Find your mobo. and read about it what has already been written on this forum so far

>>21586312 FOXCONN PM_I_HPC_S_MP_A_A1_100503_R1.1 D1 STAR(Federer)
This is the board.

**When the battery is out of board the board from PS is taking 0.100 mA but don't start up -only LED is blinking 4 times.

When the battery is plugged in the board is taking 3.15A (short) and voltage goes 14V and the only thing that gets hot is the coil of 19V.

By the way, thanks for your reply!