I checked under the thermal imaging camera and nothing is heating up.
battery disconnected and:
1,2 (PPVBAT_AON) - 0V no short
3 (SCL) - 0V no short
4 (SDA) - 0V no short
5 (SYS_DETECT) - jumping all time 0V-1V-0V-1V-0V-1V..
6,7 (GND) - GND

Now J5150 without battery only connection AC
1,2 - 184 mV
3 (SCL) - 0V no short
4 (SDA) - 0V no short
5 (SYS_DETECT) - 0V short when connect AC

Now battery connect and AC
1,2 - 184 mV
3 (SCL) - 0V no short
4 (SDA) - 0V no short
5 (SYS_DETECT) -​...

Mainboard 820-02016
There is no water damage
PPBUS_AON - 12,2V
PP3v8_AON - 3,8V
PP3V3_AON and P3V3_AON_EN - 0V (no short)
PP5v_S2 and P5VS2_EN - 0V (no short)
can anyone help me ?​