A laptop I recently got was not charging the battery. I opened up the laptop and checked out the power jack on it and all was well.
They actually made these new laptops easy to work on. The problem turned out to be with a broken wire on the power supply plug
The laptop has to know what kind of power supply it is or it won't charge the battery. I cut open the plug and resoldered the broken connection.
This video briefly explains what I did to fix it.
Негізгі бет Dell laptop AC DC power supply repair
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