Re: Asus UX334F - Not Charging

Visual inspection also done again. All connections look fine.

Re: Asus UX334F - Not Charging

Game consulting business..., what a professions there are these days. I googled for it and definely need to tell my son about it lol.

I will measure the voltages on the charger IC, but I need better probes for that to be sure not to damage anything. Ordered those.

About the battery I can say that the SMBUS lines both measure 3.21 volts, also when the charging light starts to blink after a while.

I tested once more if the laptop starts without power connected and with battery. It does but Windows reports there...

Re: Asus UX334F - Not Charging

Now I see that this Rsr in the schema you posted measures 10 milli-Ohm, which explains why C11 looks shorted.

I haven't found it yet on the board, but it will probably be there.

Re: Asus UX334F - Not Charging

Happy with the quick support!

1A-2A measures 20,6 Ohms (sum of the 3 measurements in the loop).

The laptop indeed boots like a normal unit with the pre-charged battery.

History of the laptop is that the original battery did not charge anymore and it had grown so big that the keyboard was lifted up. My 15y old son didn't tell me, only after the teachers at school said he needed to have his laptop fixed because it should run on batteries. When I saw the situation I immediately removed the old battery and ordered...

Re: Asus UX334F - Not Charging



Dear Mon2,

Thank you for the thorough explanation. With your drawing I have measured the resistances as you recommended. However I did not identify Rsr yet (drawn between 1B and 2B). What I measured:

Between 1A - 1B: 10,2 Ohms
Between 2A - 2B: 10,2 Ohms
Between 1B - 2B: 0,2 Ohms

Could I have a shorted C11? It 's actually the same situation as Ado02 discovered on his motherboard.
Or do you have another suggestion?

I attached a picture of the situation on the MB.
...

Re: Asus UX334F - Not Charging


Hello Ado02,

This is my first post to this forum. I have exactly the same issue with my sons UX334F and already tried 2 new batteries (no Asus originals). 8.4V drops to 0 when the orange led starts to blink, etc.

Were you able to fix the issue with you laptop?...