Laptop Power Supply Broken

Technology and Gaming Help and Support
#1

So I lost my laptop charger and found it a week later. I left it in a classroom I think still plugged in, but when I found it it was unplugged. When I found it, I plugged it into an outlet and the green LED on the brick didn’t turn on. I plugged it into my laptop and neither the laptop’s nor the brick’s LED turned on. I tested a bunch of different outlets with and without the laptop or the laptop’s battery. I replaced the cable between the outlet and the brick. After testing, i’ve discovered that I can get the brick’s LED to come on by plugging the cable between the brick and outlet into the outlet first and into the brick second. But the second I plug the charger into the laptop the brick’s LED goes out and I have to start the process over.

Not getting much off google right now, does anyone have an idea that doesn’t involve buying a new charger? Could not using the charger for a week explain these symptoms? Hopefully in a repairable way?

EDIT: Can’t get the brick’s LED on under any conditions now.
EDIT2: LED came back on using earlier process, seems like there’s a cooldown time or something from when I plug it into the laptop and it breaks to when it will work again.
EDIT3: pretty sure the laptop’s charger port or mobo is shorting the power supply. Turns out the outlet plugging trick was a coincidence, plugging in normally turns on the brick’s LED too.

#2

It doesn’t sound like it’s your problem, but I have gone through an insane number of laptop charging cords. Have you tried it with a different charger from somewhere?

#3

Unless you want to send it off to get repaired, I think you’ll just need to buy a new charger. I’ve had this happen, and I inevitably needed to replace mine.

#4

The laptop’s charger port has failed on my 3 times previously, so I suspect it’s failed on me again and is short circuiting and triggering a failsafe in the PSU. I’ll probably send it in, I’ll see if I can get a different charger to test it with first.

#5

I got 3 free laptops like this already, one was a thinkpad t60 one was a dell d620 and the last one was a toshiba p100

what I did is open the laptop and replace both the plug in the laptop and the plug on the end of the charger with one from a PSP slim 2000 series, they have pretty durable plugs compared to most laptops.

if you’re going to attempt this you will need a voltmeter, soldering gun and lots of hot glue.

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