Most common fault on a Dead Laptop
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- เผยแพร่เมื่อ 12 พ.ย. 2018
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By carefully following this video, i have now repaired an ASUS laptop that has been dead for 12 months, thank you so much.
wow amazing
Michael Forde great. Good luck.
Well done - what was the fault in the end?
Nice bro
@@aaronlewis7553 shut the fuck up?
I have been watching your educating people on how to repair laptops etc and I must commend you on your patience dedication and generosity.
My name is Ron and I am from Melbourne Australia and although I can repair a few things as a hobby, I have never repaired laptops ot Iphones. Your explanation and demonstration on repairs have inspired me to try to fix some things after I have watched more of your videos.
Please ignore any negative comments from othrs and keep up the good works. There are plenty of us who appreciate you tireless efforts.
Kind regards,
Ron
Hi Ron. I fully agree with your written notes. You remind me of myself, and my efforts to fix all manner of Consumer Items. I am 70 years old, and electronics has (for me) been a lifelong pastime of repairing TV's / Radios + lots more. I still have a thirst for the knowledge. Working alone, the most difficult and frustrating part is not being able to discuss any electronic problems with another (educated) human being!!
Ron Perera you nailed it. Exactly the words that I'd like to repeat to Mr.Sorin. Thanks for the positive feedback. 👍😊
Peter Duxbury trust me I understand what you trying to convey. You sound so inspiring. Good luck and best wishes. 👍😊
@@peterduxbury927 - It's nice to read the interesting and inspiring comments one sometimes finds on videos. I hope, Peter, that you've availed yourself of all the other instructional, unformative vidoes just here on TH-cam?
Please what is the use of the musfer
I've been working with and on electronics for 45+ years, and what I love most about it is that I can ALWAYS learn something new, like I did just now! That was a very fine piece of troubleshooting, but the way you explained each step of your process was very educational. I came to this video because I also have a dead laptop, and I was pretty much out of ideas, but now I'm quite confident that if I follow along again with this video, I will be able to bring it back to life. Thanks for sharing!
Did you manage to bring that laptop back to life following this video again?
Also with your experience level, maybe you would enjoy being part of the Discord server to receive and maybe give help?
@@Infiniti25 I would be interested to join a discord server to discuss these kind of repairs. Do you have a link?
May I join in too@@Infiniti25
Hello sir..
Im not repairing things for profit.. just super fascinated in how things work. I cant begin to tell you how much your videos mean!
Sharing knowledge like this is such an honorable thing to do.
Very grateful, always look forward to content like this.
Thanks to CALIPHATEHACKER he is so intelligent and real and doesn't charge much at all,You can contact him on Instagram...
Same I always been fascinated by electronics and how they work and I went to college. I got a degree in IT
Nice video! I only wish I'd come across it sooner. I like the guy's no nonsense approach. He quickly tracks down the issue, and solves it without fuss. I also like the way he's thinking about his customers, and his primary concern is to help them, rather than to make as much out of them as he can. I wish we had people like that where I live!
He prolly already has plenty of money so it isn’t “everything” to him…. Folks who try to rip ppl off, most of the time, don’t have much at all
Precisely why I changed my major away from automotive technician and going into computers!
Best laptop repair i've ever seen. Solid experience i may say. I learned a lot from you. Many thanks.
I admire your courage in presenting your assessment on when to quit. Am retired electronic technician(mostly worked for corporations, never on my own business), so I understand your judgement. Nice video. Keep on trucking buddy.
Hi redserpent can I Link up with you for some tutorials
I don't know how people can dislike Your videos.You passing Your knowledge to us in this short videos that You been learn thru years.That is just wonderfull.Thank You very much!
The dislikes are coming from repair technicians who think that videos like this are taking customers from them.
Maybe cause this exact fix ruined my battery and now my cpu running at 0.4 ghz
kudos.....thanks for the help!!!!! I love being able to get into the little fine spaces to diagnose and repair. Without your help on this issue i would have been running in circles!!!!!!! Thank you so much for the help!!!
Thanks for sharing your knowledge.
I like the idea of using voltage to check continuity and short circuits. If you have a high resolution meter you have a more procise location for the short circuit it helped me pin point a short on the circuit. Great videos ....
Toata stima !!! Tin sa multmesc pt toate informatiile pe care le-am acaparat din postariile dv!
you are cool man , i love the way you Tshoot components
I love the simplicity of the way that the 8-pin IC Chip was removed and then (using calibrated fuse wire) bridging the Drain & Source in order to restore the 19vdc supply to the circuit.To say that the Motherboard is "complex" is an understatement! It is also extremely difficult for anyone to fully understand the full function of the 8 - pin IC Chip that you removed. Further to this, the pinout diagram would be needed - in order to ensure that you do - in fact bridge the Drain & Source. The IC device which was removed, handled the full current of the Laptop. There may have been the correct 'Gate' voltage present to turn the Mosfet on, but the device may have been faulty. I do appreciate everything that I have seen in this video, and I have been enlightened by your Tutorial. Thanks & regards from Sydney Australia.
Was the Gate shorted with the source?
@@irishguy200007 It was a possibility, but I cannot be certain.
Wow, that's really an amazing tech skills! I also have a dead laptop with built-in battery and trying to fix it. The video guides and gives some helpful hints what to do if someone has similar issue.
im nearly 51 but but watching videos like this make me want to learn about electronics, id imagine there is a lot of satisfaction in fixing useful tools like this when they are broken
Just want to say thank you for all these great videos. I'm fixing an HP pavilion dv5_1235dx now for my wife and your saving my life over here!
New to your channel, love the help I get from them! Thank you so much
directo to the point.....what a awesome technician you are sir....salute
Sounds like the diode in the MOSFET died and kept the circuit from detecting the power supply. Yes, power has to pass through the diode built into the MOSFET before the circuit on the other side will turn the MOSFET on... Short the MOSFET for a moment and then the circuit will power the gate and try and turn it on. If the diode is dead then no initial power detection happens and no power on. It's a low resistance polarity protection circuit.
Yes!
Do you know what does the next MOSFET do? I assume for a load switch so the chipset can restart itself or something?
@@fullmoon6661 Usually there is a MOSFET next to the polarity protection MOSFET that controls the power from the battery going to the main power bus. The one from the battery would be in an ideal-diode circuit to prevent the power adapter from dumping power straight into the battery. The input polarity protection also acts a bit like an ideal-diode circuit that prevents the battery from discharging through the power adapter, so it serves a dual purpose and technically they are both ideal-diode type circuits...
Sorin indicates he detects 19V at Drain, 0.8V at Source and 0.8V at Gate of the big N-MOSFET AON6426 for this HP laptop. I have a dead Lenovo ThinkPad P50 with a big P-MOSFET AON6407. I get 20.4V at Source, 0V at Drain, and 17.3 volts at gate. The gate voltage is always there. Can you explain this based on your theory?
@@neverwasthere Without looking at it or a schematic I can't know for sure but this design probably has a couple of transistors controlling the gate of one or two MOSFETs. I'd look for some small sot-3 or similar transistors and test them and surrounding components.
What exactly does “shorting” the mosfet mean?
This is awesome, I have been searching for this for a longtime, thank you so much
I'm going to spend the whole day/evening watching all videos from the start. Need to reduce the pile of electronics building up (hoarder) and throw out the unrepairables, or keep them for parts salvage?! Grateful for the leg up he has given me. I just love this stuff!
Keep em for spare parts, just organize your whole room. I need to do the same thing or so i've been saying for couple of years now! xD
Very helpful. I've been having to fix my pcs and laptops myself cos where I live the "experts" haven't got a clue. Your video is very helpful and also the way you speak has a very calming effect which is good because a broken pc can be so annoying!! Thanks!
4 years of studying electrical technology (technician) summarized only by 24 minutes video. Thank you it works for me
Thank you for the very informative video , i manage to bring alive a dead laptop following your video , all the video's are great information source and so easy to learn , thank you again and keep up the good work .
I had an old laptop went totally dead on me. I studied it and checked as much as I could with voltmeter. I studied and noticed that some of those tiny little resistor blocks that are surface mounted little bricks with no wires have numbers of their value ( very tiny ). I noticed some near power input were marked with 0.0 which I guess meant no resistance or some kind of jumper. I found one that didn’t seem to be ‘ jumping ‘ like it should so I managed to solder a small wire across that part of the circuit and ‘ voila ‘ it’s alive again.
Also known as “There, I Fixed It “
That's awesome. That's what i'm trying to do with my old laptop. My laptop's power led flashes on when i attempt to turn it on but immediately (less then a second) it shuts off. There's no time for the fans to even kick in and it's an old laptop so the the fans can be loud. What can be the issue?
@@thingshappen9199 I have the same issue, is yours a Toshiba ?
@@michaelkenny4124 It was an HP, the issue turned out to be the IDE SSD.
Things Happen hey i have the same issue, mine’s an hp as well. What did you do??
What was the power input of the brick that was jumping??
great job educating us young IT technicians. Appreciated
What a Gem of a video from 5 years ago. I have a HP Envy with similar problem and this has given me the confidence to go and take a closer look at the Motherboard. All other things have failed, and it's got to replace the motherboard or scrap it. Very well explained bit of troubleshooting and fixing. This video proves even the simplest of videos can share some very hidden knowledge these days! Awesome!
Thanks a lot Sorin for this video, it always brings back memories (*good ones) for me to be able to diagnosed similar problems in my laptop checking and fixes. (*presently working on a Lenovo Legion laptop that won’t turn on and yet the voltage is present at the charging port but nothing on the other power supply like 3.3V, 5.0V, and the likes. Thanks again! Keep it up the tutorials! Love them all!
hello. did you get your's fixed? i have similar issue with HP C125. power indicator and charge led works fine at the jack.(white without battery and orange with battery. battery and charger all test fine.) Also at the activity led (bottom left of laptop from above). power indicator is fine. However, the thing won't boot to even the bios or spin up the HDD. No Beeps. Nothing but LEDS. Brand new CMOS battery. No HDD Activity LED. Black screen. 😐
@@Palmit_
My laptop did that and you can unplug the power lead hold down power button so all power is gone then plug in power lead press hold the power button for about 30 seconds you will see the light flash 📸 then try power it should boot to bios i have a battery now charging all power goes to battery but not out of it I pulled the battery open to get to the battery sercuit and 4 cells are fine I think it mosfet or cap short as only shows 10 v across 4 cells I believe this is Microsoft fault the day that it broke won't turn on and battery drain was the day google news said Russia has wiped data from Ukraine industry to wipe data but Russia had no reason to but usa bio labs was I bet the reason to wipe data to cover up bio labs and Microsoft did it blamed Russia just like 2016 I could not boot to bios the day that was reported I also see in log file on phone if a processor was newer than a set date or type basically new processor than update bios Microsoft has took control over the bios and to boot 3rd party or own operating systems you need permission of Microsoft to have keys 🔑 for it to boot so Microsoft has control from the point you press power and dictate what you can do on your own pc im going to downgrade to 10 and find out how to tale back bios this is another step in full control over data boot Linux and they will collect data while on it no privacy all about control and data and so they can tunnel bio medical and behaviour data no matter what system you on :(
@@BubstechDOTcom hai i hope you are doing great..
i got similar problem with hp laptop 15db series ..
Tried boot methods,reseat(pull out hdd,battery & putting back)
Still nothing happened.. same "no hard drive or ssd installed"
Checked (i saw) that hdd drive is fine,when a scamming local repair shop guy checked it
I akways knew MICROsoft doing this crally things.. but my younger brother bought this worst reviewed laptop for money i sent him
If there's anyway to bring it back,please say
Thank you 😇😃
10.03.2023 08:14 pm ist
Atleast you guys have charger lights and such… my Acer nitro 5 is completely dead.. brand new battery put in today and still dead dead. No power at all! No lights at all
Sorin, thank you for a very interesting lesson and it was useful. I wish i had you for a teacher in the 70"s !
Ugh so glad I found ur channel again I love you ! Your videos help me always oh I'm so thrilled
I just found your Channel ....you are my best of all....was looking for something like this channel ...thanks a lot mister for giving us your lights
This worked for my hp probook 650 G2.
Was ready to throw it away and wanted to try this repair as an last effort.
To open up the laptop and put everything back together is most of the work.
Measured voltage from power jack input, step by step, component by component, and the first mosfet seemed dead.
Made a bridge from small piece of electric cable across the mosfet, with use of solder iron... and guess what. Fixed!
Super thank you for this video!
Your feedback and your experience is as inspirational as the video "tutorial" itself. I have a solid HP that's on its last legs and when it gives up the ghost I will try and pull off this very "trick" provided the laptop promises to screw up one of its MOSFETs exactly as featured in the video:)
glad it got fixed im fixing my hp 640 g7, it wont turn on yet
@@jurnoss any luck its fixed?
@@OMARENGG22 display screen apparently was it
I have been watching your educating people on how to repair laptops etc and I must commend you on your patience dedication and generosity.
My name is Rana Irfan Jalal and I am from Pakistan and although I can repair a few things as a hobby, I have never repaired laptops ot Iphones. Your explanation and demonstration on repairs have inspired me to try to fix some things after I have watched more of your videos.
Please ignore any negative comments from othrs and keep up the good works. There are plenty of us who appreciate you tireless efforts.
Kind regards,
Rana Irfan Jalal ( Note :Same Ron Perera's Words and My Feelings ) !
Why are there multiple identical comments posted by different people on this video?
Sir you are a true professional and I like your way of methodically working through the root of the problem and to it's solving.
Incredible job...
You are deep in this profession, lot of experience.
At around 19:00 to 19:15, when you say you have to find out and then suddenly you say it's complicated, kinda laughing moment but actually it is your depth knowledge about it which you try to express to watchers.. 👍👍
Just found you on youtube and glad I did.
Great informative vids, thanks.
We used MOSFETs and other "surge suppression devices. Usually, they are not needed unless you have AC power that has a lot of surges and or lightning. Most of the time, just putting a good surge arrestor at the input to your building is plenty of protection.
Wow! Got my HP 250 G6 fixed doing exactly the same thing on the first mosfet on the underside of the motherboard. Thank you 💖!
So many thanks for your supports
You remind me of my father when he took computer repair courses. That was 26 or so years ago. Good memories. Thanks!
I love this dodgy guy!!! I think what you are hinting about programmed obsolescence... I have so many nice laptop with the same symptoms, I had to thrown them in the trash. Sad! Thanks for you knowledge and time.
You are so darn pleasant to watch. Always learning something new. Thank you so much for sharing !
I'm am new to computer repair. Followed this video and it was excellent!! Everything had correct readings... light turns white but laptop not working without battery. Can charge battery fine only with laptop powered down(orange light on). Will not charge while powered up or with power supply and no battery. Light does come on white but can not use unless battery is charged up. Then dies, and charges again and so on and so forth.
I hope this may be solution to my problem, thank you. Your voice and jokes remind me my friend, this bring back good memories of him. I could watch your channel only to listen and laugh over old times. This is good learning material, thank you and keep good work
Just watched your video and I got to say thank you I feel confident enough that I may apply the same principles to a dead Dell 3000 Series Inspiron we'll see how it goes thanks again for your patience and that wonderful knowledge that makes it seem so easy
Jonathan Brown good luck to you and don't forget to keep us posted on what happened ok? 👍😊
How'd it turn out bro?
@@rayofcreation3996 it worked! Sure appreciate it!
Hey hey! love your videos! I am just starting to get into soldering work and low and behold. i get one of these in today at my shop. My question is, once i find which mosfit is causing the issue, what fused line should i use? Kind regards! Love your channel
You sir are topnotch, no beating around the bush. I Love the video. I am a loyal subscriber now.
Hi, I really love your videos. You give good explanations and you always manage to fix the laptops. Unfortunatelly as long as I am concerned and all the lessons you give I am unable to fix my laptop even if I checked all you have said. My Asus just won't start and maybe I am a lousy electrician :-) or a very bad pupil hahahaaaa... anyway I keep on looking at your videos and sometime I hope to understand the right thing to do. Keep on rocking my friend!
Thank you very very much!
I haven't tried it yet but learned something from this video. Thank you so much
Wonderful video, thank you very much for posting. I know nothing about laptops and now I can start learning.
Again you make everything seem simple!! Completely dead laptop but after that small wiring shorting the 19V and letting it pass through everything works again!! Awesome Mr Sorin! Thank you again for letting us know!
Thank you again Mr Sorin
He didn't make videos of all the times it didn't work...!
I enjoy your laid back way repairing these items. I also enjoy the humor, "perhaps it is global warming, french fries, coca cola" hope to keep watching many more repairs for years to come.
Best videos man! you are great! very detailed. helping me learn alot as my friend works at a recycling place im endine up with as mant laptops as i want and have been watching your videos closely! keep it up!
Discovered your videos today, nice to meet you Mr. Sorin.
Thank you so much. You are a genius! I did it to my Toshiba and it came back to life!!!. It was a bit tricky to remove the chip though without the hot air tool but I managed. Seems like there was a lot of varnish on the board and chip which melted when I used my soldering iron.
Thank you so much!! You are so patience. I really learned a lot, and. I'll trye to do that with mine
Well Dumb !
I like the way you troubleshoot step by steps I want to learn more from you.
Love the videos you give. Helped me a lot with my Lenovo and Samsung products. Have a question how do I get a OnePlus 3t blank screen to revive itself
New subscriber here. Im searching for this channel for so long. Finally find it
Melwin Jay Asturias I know! 😀
Oh my gosh I finally found the best laptop repair website in the world! I was about to throw away my 2 dead hp laptops and about to buy 2 new ones but now it's working. I fixed them through your awesome tutorial. Thank you so much. I saved $600.00 today.
How did you fixed them? You bought a tester, you managed to find a broken mosfet, you bough a new mosfet, you bought a soldering iron and you managed to accurately disassemble and weld a new mosfet? wtf are you talking about!
Such a great channel!! Keep up the great work, sir!
Greetings from Cape Town. A million thank yous for this awesome troubleshoot and resolve Sorin. As a token of my gratitude, you are now an honorary recipient of Table Mountain :-)
love from johannesburg
Stumbled onto your site.. very interesting.. I have always like to watch troubleshooters (people that know what they are doing) fixing things.. I am not a big electronic fella.. But I have always been fascinated by it I can do/understand the basics but that is about it.. thanks for the share! I am off to watch more of your vids... Who know at 66 maybe I can learn a new trick or two...
Nice job, it's very helpful
such attention to detail and great explanation. thanks a lot!!!!
Hi man I had a problem
Hi, I had some problem, in a few days while I gaming my laptop suddenly sad "zárolás" (it is a Hungarian word) it mean maybe locking and than black screen, I puss the power button it said "windows windoatása" which mean continue window, and I continue the game where I finished.
I had an other problem, last day I whacking movie and in the middle of the movie the screen had black screen but the audio still went on, I pushed the display down slowly and it has crazy noise, the screen is seems like recovered 2 minute later black screen and the laptop isn't turn on. I try to charge it but it couldn't and that's it.
Can you help me???
It's not always that simple, I had many laptops with no short on the board, even when bypassing both mosfets still won't power on. I'm not that lucky. Thanks for sharing. Best teacher
Yep same here
@@retrogamer33 yeh some will solved some the mosfet won't open because of other problem, maybe the IO chip.
Why if you repaired many laptops and not can see what the problem is? I saw it in 1 second when he opend the laptop. I'm shocked of all the people here that also repair computers like me can not see it. You should be ashamed.
@@electronicsfreakjasper see what?
@@computersrepaircotesaint-l7407 hi, how are you?
I have some dead asus to fix. I jump on the first mosfet like the video and the laptop is on, all normal but the laptop is not charging. You know why?
I really loved this one
I've have repaired some laptops in the past but I can learn a lot from you just as I learned today. What the real problem is, doesn't matter If it's running again and stable it's enough.
I'm looking for dead laptops from now and with you as my teacher. Ha,ha,ha.
Thank you sir, learned many things from you.
Cool, at last I finally found this informative channel. Thank you for sharing your knowledge :)
My grandma’s tower was running slow after 10-15 minutes of it being one. It had blue screened on her. She called me up asking what it could be. Told her that it is usually related to hardware, drivers, or a virus. Ended up being that the heat sink was wearing an alpaca sweater and was over heating. I still ran a few checks on the ram, hard drive, and ran a virus check just to make sure.
right on, concise, perceptive, intuitive and all of these expletives.
You are the greatest, just yesterday I did repair my dead laptop! Thank you so much!!!!! 💯
I Like him " I don't even want to know the problem" "maybe the heat is global warming or the french... " lol. How can U not love this man - "it's fine" . . . "I don't even want to check . . . what can I do" - keep it coming, comrade :)
Hunt4art linearVector 😀
You know what you're doing and I respect that. Thanks for the lesson! A+ 🇨🇦
He doesn't know what he's doing because he didn't PROPERLY fix the laptop! I guarantee you that laptop will fail again in a few months of usage and his customer will be looking for another laptop! HE SHOULD HAVE REPLACED THE MOSFET AT THE VERY LEAST!
This man is no different than a BAD AUTO MECHANIC!!!
Thank you very much! I did fixed one laptop just by watching your video! Looking forward to learn from you, from a-z :)
Thank you sir for this video,I learned to you now my laptop was charging already. Happy new year
I am a surgeon. I use operating microscope to to anastomose small vessels and ducts. I am impressed by your use of microscope and peaceful demeanour in approaching the issue at hand. Any work that is done at peace is like a meditation. I recommend this video to anybody who wants to reduce haste from his life. Regards
Thanks to CALIPHATEHACKER he is so intelligent and real and doesn't charge much at all,You can contact him on Instagram...
Andrew you made that up.
You could measure the gate voltage after removing the mosfet
Am glad you came around. You are now laptop repair guru
Great video...you have insight and skill.. A relaxed way to express your knowledge and the right tools. I’m not an electrical engineer nor technician but you certainly made me laugh and made clear how you can do it and what experienced you are.. keep uploading. Greetings from Holland.. consider Cola as a goodie to unrust metals only...😉
Nice.. thank you for sharing your knowledge.. by the way my name is Wilfredo catapang from Philippines and i watching your videos... thanks
Thx alot .. you are magician
You are a legend sir. The GOAT of electronic repairs.
Gooday sir and thank you for all your videos, they are very informative for a amature like me, i want to repair a broken motherboard and i want to try out my self.
I know its gonna be hard to start a learning curve without any study at all but i want to.
Wish you were in cyprus... i have 3 dead laptops
23:14 This is actually a valuable lesson for me, i'm a people-pleaser but that's the type to let everyone down cuz one person got you stuck pleasing them. Balance is key!
this video is very helpful to someone trying to revive he's dead unit.. thank you for sharing this video. god speed always .
I'm having great chance to repair my dead notebook after watching your video. Really great help!
Interesting troubleshooting technique....Gets the job done!
u are dodgy but also a genius, good job and keep the videos coming, please do more dell laptop repairs esp the dell e6520 and e6540
I just find this channel 2,3 days ago. And i am sure that one day i will also repair my dead laptop.. very helpful channel ✌️👌
Thank you so much for this tutorial sir, this is big help for me as a newbie tech. More power ❤
Good Job Bro.. Keep Up The Good Work.. And Thanks To You...^_^...
You make it look so easy, it it’s not. Takes years of experience, and skill.
No it doesn't... It takes what you saw, and how much time and determination for YOU to get there. Read the comments, people watched age learned, simple.
@@cwickwitted spoken like a true board roaster. Maybe for a one off repair sure. To accrue the knowledge and experience to identify components over their years of changes, reliably and efficiently repair near anything thrown at you, indeed takes a very long time of studying and experience.
@@cwickwittedseems like you have a photographic memory. Not everyone can learn each component on a single video. It's like your asking ppl to learn the human anotomy in a few days. Not reality
Your voice and profile reminds me to a Honourable Man called Mr. B. G. Attery who teach me Basic Radio Electronics when I was only 14 y o and a student of Dawei SHS No. 1, Burma. I want to express him my gratitude. He was a member of All Burma Indian Congress by that time, I remembered.
Will very much obliged if you help me find his Ancestors now sir. Thank you..
I always admire the "Cost Conscious" techies and mechanics. KUDOS !!