Latitude 3301 not charge battery

[dclass-pro]

here are the measurements on Q4301
D=0.2V
G=0.1V
S=0.6V
If I try to bypass it, I think it doesn't work because on the PS_ID pin I still have a low voltage and therefore it doesn't work.
Can I try to inject 3V and see what happens?

[mon2]

Remove all power. Measure the resistance of the 33R ohms series resistor. This is another common point of failure. Is this resistor @ 33 ohms? If not, it needs to be replaced.

What is the voltage to ground on the same trace but after this resistor? We are wanting to confirm the pull-up voltage on this EC trace. It is the EC that is the bus master and attempts to communicate with the power adapter.

[Sephir0th]

Did anyone brought the charger in question so far?

[dclass-pro]

R4305 is present and is 33ohm
R4605 is not mounted on the board
The voltage I have on both sides of R4305 is 0.5V

[dclass-pro]

Did anyone brought the charger in question so far?

I also tried with another charger and bench power supply

[mon2]

Other chargers must be from the Dell brand. Bench power supply is not suitable because the power supply will not offer the 1-wire ID device that is implanted inside of the Dell (only) power adapter.

At this time, the communication line under review (PS_ID) must be at ~3v when there are no loads on the line. Confirm the dual diode (D4302) that is on the same line to the right side of your posted schematic. Confirm the voltage on each pin of this dual diode.

[dclass-pro]

Hi guys, I found the problem, one of these 2 resistors instead of being 1.2ohm was about 1k.
I replaced it and everything worked great again!
I want to point out that the 3v on the DC in connector does not come from the connector but from the mainboard.
Thanks to everyone for the help!!