I wanna live in the future where we are able to fix our own stuff and companies stop screwing us over. Nice video sir.

Everyone be very careful. I took my adapter apart that hadn't been energized for over a day and it still showed 120VDC across one of the capacitors. That can really bite you! Get a resistor to drain off that charge before touching.

This was a very straight-forward video. Thank you for getting to and staying on topic!

Every time i have to twist and turn my cable to charge my laptop properly.... but you really saved my day man. .. thanks a lot

Thank you for your very thoughtful & simplistic instruction! You are a champion for us hobbyists! Best regards & Safe Distancing!!!

Thank you your youtube tutorial really helped when I was in trouble

Broo, yyou made my day, Thank you so much, I have fixed my own cable and now I am back with you all. Thank you !!!

Being a complete novice, after removing the outer shell (which was a bit more difficult than expected), I picked up the board without any gloves and it shocked me. So I decided to start moving it using 2 big screwdrivers (with rubber handles, bear in mind) but they must have touched and something sparked. Lucky for me the charger was unplugged (at least I tought of that!). Lesson learned: next time, DON'T TOUCH THE PCB, WEAR GLOVES AND WAIT A FEW HOURS AFTER UNPLUGGING THE DEVICE BEFORE HANDLING IT!!!!

Thank you for the video. I am getting back my old laptop to life. I was using it's adapter as power source for my other projects, it was not attached with original cable. I resoldered them with your help. Thanks :)

Great video! Your series of tutorials really helped and I ended up saving a ton of money. Thank you! Subscribed for sure

Every time I check on KZfaq and try to search adapter repair. The example will always be bulged capacitos. In reality, it is always some other reasons. e.g. broken diodes, optocoupler.

Thank you! This guide or tutorial was comprehensive and very helpful. I was replacing a cable on a Dell adapter with a spindle connector, and the colours were mismatched on the third party cable. Black - GND, Red - Positive and White - Sensor. The technique to break open the case was very easy too, and it doesn't look too bad after finishing up. Most importantly I didn't hurt myself with a sharp object.

Superb! Very helpful video, it really put me on the right track. In my case, the two pins that connect the socket to the board had come loose due to wear. I just soldered them back into place.

Great video it saved my old compaq nc8230 from being scrapped. Thank you.

Thank you! this is aweosome! My laptop adapter just broke down possibly due to me wrapping cable the wrong way all the time. I wiggled the cable near the brick and voila it is working again!

You do an excellent job on covering everything and showing in depth detail

Exactly the info I was looking for. Great video, thank you

Thank you! Easily managed to fix the broken cable! Was super easy to open with the screwdriver and small hammer.

You explain it smooth like honey, thanks :)

Found this because I was curious whats inside these things. Very cool and thank you!

Great techniques and advice in this video! Thank you! In my case, I saw a failure of both the output capacitors from a cheap $10 power brick (the type that we're advised in the video to avoid). I blindly replaced the capacitors with a pair that has a higher voltage rating, and they also started to fail due to over-voltage; my 24V supply was putting out over 50V! I haven't verified this yet, but I believe the transformer failed in a high-current use of the power supply. It is often the case that these cheap transformers use copper-coated aluminum wire, which will generate more heat due to higher wire resistance; this can melt the insulation around the wires in high-current situations. When that happens, turns are shorted, you get a higher output voltage than expected, and then electrolytic capacitors go BANG. So, yes, don't buy the cheap $10 power brick!

Thanks for your simple introduction

thank you so much for your reply for damaging the adaptor, i have tried it but unfortunately the way is not working, i am using lenovo adaptor and it is very strongly packed. Can you help me with any other way, even if it is tough

Informative video straight forward to the point Thanks

Thanks dude. Fixed my Thinkpad charger that had a loose connection on the inside. I just resoldered the joint and it works now

Thank you, it's very helpful.

Good tutorial, thanks! :)

Thank you sir for sharing your knowledge about mechanics with us 🙂

Thank you! it really helped me sir!

Excellent video.......I fixed mine using this for less that £2.00. 👍🙂

Thanks for a good video. Hammer + screwdriver for opening worked nicely on my case, I broke the input power connector though, probably by too much force 😞

Fantastic video - you just saved my family ~$100. Sincere thanks!

Good video. Nice to see someone putting up useful info instead of these crap things about using gasoline to take one apart.

You answer the very question how to open the housing of an adapter of a laptop. Thank you.

Thank you! I have a power supply that the wire is damaged at the boot and new it should just "pop" apart but wasn't sure how to actually get it apart without damaging it!

That is really beneficiary for laptop AC adapter problem how to solved. Many many thanks for this use full tropic video.

Well done and very informative. If you have one, a good automative trim tools would work very well for opening the case.

This is one of the best put together tutorials I've seen in the 11 years I've been on KZfaq. It covers everything I can think of! I have an AC adapter that isn't putting out 20V but the ground and sense are fine. I had another with a damaged cable and a final one with a good cable but it's really tatty. This video has given me the confidence to create two working adapters.

Great video! Just wanted to post a warning. My LED was always lit meaning the AC cable was not my issue. The cable post DC conversion was the problem. I removed the case and then suddenly the LED does not turn on when plugged in. As soon as I removed the case I smelt something that most engineers would recognize as a shorted/damaged part. I looked all over but couldn't find any damage. I'm wondering if the power supply is rigged to break when opened. Or maybe some cap was shorted during the case removal. Anyway, be careful! Removing the case may make things worse :(

Thanks. Fixed my speaker's power brick after watching this.

Thank you for such a helpful video!

Thank you bro it really helped me fix it 🙏💯

Thank you so much. You are a live saver

Thank you man my charger wasnot working , after saw it video it starts working. God bless u for saving my 4k

Thanks bro. your tips saves my time and money

Man you doing God's work....

I would never believe taking out and putting in the power side of the suppoly would fix the problem. Thanks for help!

Honestly i have just fixed mine. Thank you very much

Thanks a lot. Just watched this because I am to replace an adapter's output cable and I was wondering how to open it up. I am not exactly friend of this screw-less fashion in components. Did they forgot to play Meccano as kids? 😒

Hi, thanks for the video. What did you use to re-seal the adapter?

Thank you ! I was able to replace barrel plug and tested for correct polarity!! Question: I forgot to replace the last of the 3 thin metal housings. It is super glued together. Do I reopen it the same as the first time ? Or is there a better way to separate the superglued case? Is that last piece of metal critical ? It had two metal covers and two white covers - thank you 🙏 😊

Do you know for a Dell 130w adapter dc replacement cable for an Inspiron 15 7000 power adapter? The one has a lighted end on the cable where it goes in to the plug?

Thanks alot. My adaptor is now functioning..

Thx 4 upload this! Very usefull!

Nice video sir 👍

Actually I follow the instructions and it works thanks a lot ❤

Hi can you make a video for apple usb-c adapter with folding pins UK version please

I couldn't get it open and tried with some force but did not want to gouge the plastic too much. I saw in another video to use Flux solvent on the crack all around the adapter. It appears this is Ethyl Alcohol. I didn't have any , I had Isopropyl and used a dish plate and put the adapter on its side in the plate and poured a little bit of Isopropyl into the plate and used an eye dropper to pick up some and put no the other side of the adapter and the ends also. Waited a few minutes and then I was able to break the seam at one point and then I got the screwdriver in and kept prying and used a kitchen knife to slide up the seam to break and just kept working it until one side was open and then just kept moving it and prying until it was free. Then of course you have to know how to solder , remove the top metal shield which was soldered to the board and then I could unsolder all three wires, noting white black and blue locations. Done in about 20 minutes total. I did not re glue the plastic together I put on two black twist ties. I know this will last a few years and then need to be done again.

Hi, first of all great tutorial! I wanna ask about one thing. The LED on my adapter is of and it doesn’t give any power out. But somehow after a while with it’s plugged to power source, it became hot. Based on this, what is your diagnostic on this? Thanx in advance.

Wow, I was a bit skeptical but followed your technique exactly and in less than a minute 'viola'! And I can close it almost like new. I opened this unit because it is pretty high wattage, 42v 3a and runs hot. I bought it to charge the LiOn adventure wilderness safari excursion power station I'm slowly and cautiously putting together. Uhg, this thing runs hotter than any brick I've ever seen. I'm certain this thing can't perform very many charge cycles running this hot. It doesn't look particularly cheap or high quality. Is there anything I can do? Vents, heat syncs or a fan somehow?

Sir, thanks for a great video! Your English is excellent! Have an HP charger that beeps! Tried it in different outlets but same result. Won't charge the laptop it goes to. Will try your methods. Thank you 🤓

Hi how are sizes rated or identified for different uses or is each unique? Great video by the way, very thorough.

Hello my friend, do i need to super glue the case back together? Also when opening with a screwdiver i made a few small holes in the side of the case

I am so grateful for this video

I fixed mine. Went to walmart with $20 bucks and bought replacement adapter. I took battery pack apart its jus some c-size lithiums soldered together. It works without the battery but i ordered a used one on el interneto. Thanks for video tho i did take it apart and believe the capacitor was overheating

Nice video, cheers.

I appreciate your help ☺️

Clean job thanks for the vid

Hi sir, can I change the cable heat to usb A and same to the laptop input, will it work? Sorry for my poor English

Hi!. Do yoy think it could be possible to solder the hp cable to a dell power brick? I think that the L shape holds better than the Dell design

Was wanting to convert my laptop to USB C because of an issue like this but I now realize I don't have too if I can repair it, thank you for this video I will be attempting something similar

very details and professional！thanks bro

Solid Video!

Thank you ! it was helpful for me

Nice info ,thanks for sharing it :)

THANK YOU!!!

my newest charger, i made a rookie mistake and didn’t realize it was covered in a lot of fabric and i think it overheated, as it wont work again, however, i have another charger with a working power box but with a broken power cord, i was wondering if there was a way to swap the 2 cords so i would having a working power box and also a working power cord, and is it possible to do without soldering? i am not well knowledged about the topic

what about changing the charger jack in the laptop with a usb slot..and Changing the cable with a usb cable ...it will so nice project and nice to charge the laptop with any Power Bank And Any Source

great video! thanks

thanks repaired !!

Thanks for the video =)

I have an adapter 12v but no current, Is the current trapped or leaked? and the adapter making noice sound

Wiggled the cable and now it’s charging (thank you for the tip!) but after a few seconds I can hear sizzling/popping sounds from adapter...

I confirm it works. Thanks.

So nice and educative

Well-explained.

Hey, i have a ASUS monitor whose supply of power comes from an AC/DC adapter and it works but keeps turning off and on. Is it due to loose contact between the adapter and the monitor and maybe if I turn the cable a little bit it works? Or should I get a New adapter?

Thank you!

100% working method thank you

Nice video! I have a very weird problem and maybe you can help. When I plug the adapter to my laptop is not charging but if I remove the battery PC starts. The only way to charge the battery is removing battery, removing ac adapter then connect ac adapter and then insert battery. If I plug the adapter when the battery is already in the notebook, the voltage drops to 0 and adapter doesn't charge...I guess is the battery but I wonder if it's some kind of reversible fuse in the ac adapter maybe? Thanks

Thanks for this. Can you help me with something else, please? We have this mobile power supply device. It's like a charging bank, but a bit bigger, and seemingly a bit more powerful (can even jumpstart your car battery to a degree), and more for car travelling usage (can charge lots more things than just phone). But we lost the AC adapter for it :-(. It has an Output connector for which you can apparently change/switch the voltage (12, 16, 19) and there's a smaller Input connector (only the thinnest of a series of 7 spare jack adapters that came with it fits) that says "12V/1A". How do we order online the best AC Adapter for it? Do we have to look out for wattage? What kinds of voltage and amperage would be compatible or best? Appreciate it.

Thank you

Thanks

Is it possible that the AC adapter still works (and randomly fails) if some of the capacitors are swollen on top? I'm asking because I have a laptop without a battery, and I'm running directly on the adapter. The thing is, the laptop is turning off randomly, either during gaming or just by watching KZfaq, but mostly during gaming. Sometimes it turns off after 4 hours of gaming, sometimes after 30 minutes. There is no pattern, but I would like to be sure that it's the adapter's fault before I open it up.

Hello, I recently repaired my Yamaha PA300C power adapter for my SX700 keyboard, but I am unsure about the correct wiring configuration. The power adapter has two wires: one is black and the other is black coated with white. Could you please provide me with the correct identification of these wires? Specifically, I would like to know which wire is intended for the ground connection and which wire is meant for the 12V positive connection

hi sir please i have a question my laptop charger part of its cable get really hot so the laptop keep disconecting if i cut the damaged part and solder it will be fixed and if it yes the output power of the charger will not change.thank you

This is soo good the middle one is my one

Amazing! 😊

i have power from the cable output but laptop dont work, i put a friends charger and its working. any tip?

Is it possible to adjust the output voltage of a laptop PSU? I'd like to reduce a Lenovo power brick from 20volt to 13.8volts. G7VFY