Re: HP EliteBook 840 G4 charging problem

Hello !
I changed the first part but unfortunately the problem is not solved. The only MOSFET I can solve remains. It has 6414A mosfet on it. But I couldn't find it in my country.

Usually there is AO4620 AO4406 AO4407 AO4712.

I need to find alternatives to this but I guess they don't have it

Re: HP EliteBook 840 G4 charging problem

Thank you very much for such a quick answer Unfortunately, adapters with two same sockets got confused and 30volt went to laptop charge.

I am sharing the results.

Mainboard : HP EliteBook 840 G4 6050A2854301-MB-A01

I'm a little handy with these things, but I don't have a hot air gun. I'll try to do it with a regular soldering iron. (I can borrow from someone.)

I made the measurements.
Thanks a lot for your help.

edit : @mon2
Yes, I have the original adapter....

Re: HP EliteBook 840 G4 charging problem

Glad to see a thread like this

I had a similar problem today.

While I was researching, I saw this topic and immediately wanted to become a member and write.

By inputting 30v instead of 19v, my computer wouldn't charge (but it worked with battery)

Now it won't turn on because the battery is empty. I'm also adding the images below

Unfortunately, these parts are close to impossible to find in Turkey. It is very expensive to import from abroad. (yes even a tiny mosfet...