Asus F541U turns on standby and power lights and nothing else

Hello everyone!
I hope you can help me. This laptop was working but had a faulty keyboard. After disassembling it to replace the keyboard and cleaning it because it was very dirty, the laptop no longer powers up normally.
With the motherboard removed and nothing else connected, initially, when I connected the power, the charging LED would light up and draw 10 mA. When I grounded PWR_SW#, the power LED would light up but it wouldn't do anything else.

Lately, without having changed anything, when I connected the power, the orange charging LED would automatically light up, followed by the power LED, but it wouldn't do anything else. It draws 90 mA. Occasionally, when I connected the power, the white power LED would light up and the charging LED would turn off.

I measured the voltage across the main coils and I have:
PL8901 (P_CHG_RSENS_SHAPE)... 0,84V
PL8302 (+1.0VSUS) ... 1V
PL8101 ( +VCCGT) ... 0v
PL8102 (+VCCCORE) ... 0V
PL9301 (+FBVDDQ) ... 0V
PL8600 (+1.2V) ... 0V
PL8701 (+3VA_DSW) ... 3,3V
PL8702 (+5VSUS) ... 5V

Can someone please help me?

Thanks

Start by checking the RAM supply voltages:

PJP8600 (pin 1) – should read 2.5 V (VDDQ)

PJP8602 (pin 1) – should read 1.2 V (VDD)

Add the exact motherboard model and revision to your post – you might have a different board version.

Also, measure directly on the RAM slot for accuracy:

pins 258, 259 – 2.5 V

pin 241 (example) – 1.2 V

If both voltages are present and stable, proceed with further diagnostics.