Asus Vivobook S15 Laptop Won't power on. What's wrong ?

[@johnl121]

"If you don't start you will never finish" ..... That is my new motto. I do procrastinate at times, so thanks for that Alex!

[@darkmoonsauditore5868]

i can see a suspect C.Cap at 3:04 in the video ..... having fun always watching your videos and your professional electronics repair

[@GraphicManInnovations]

nice find haha

[@andrasszabo7386]

I also suggest, that you should replace the mosfet drivers, too. I had similar cases where only that could solve the prroblem. Or at least measure around the drivers.

[@nadimtarek1344]

you killed me when you said لا حول ولا قوة الا بالله for a second i thought you were going to swear or use a strong language when the battery dropped , also i really like putting bloopers at the end of the video , it's super funny

[@exploitedpizza3134]

Thank you for your great videos, very entertaining and helpful. I'm currently 15 years old and trying to perfect micro soldering and learning electrical circuits, since I find it fun, and these videos are very entertaining to watch and help me learn a bit.

[@manh7897]

Heck yeah, good for you! Make sure you stay in school and stay dedicated to what you enjoy. It's a real life skill with demand and with tech becoming more prevalent, will be needed even more so will be great for people with skills like you. It's all part of the process, don't take any shortcuts. I wish nothing but the best for your future, good luck out there!

[@exploitedpizza3134]

@@manh7897 Thank you very much!

[@brainiac9579]

Seen that behavior on laptops and video cards. Always came down to a faulty VRM controller. Don't know the root cause, but the MOSFET activation timing gets bad, from the controller, and it makes random driven MOSFETs short out between the gate and the source. Good luck!

[@thadofalltrades]

Hope he sees this. Can the VRM controller be replaced?

[@mr.random2297]

Whenever I watch your repair videos i feel like a professional electronic repair man like you and look for non-functional appliances and attempts to repair

[@serviceman21]

As for me, PWM IC is operate the gates of this MOSFETS, so it must be change to.

[@robertoruiz7069]

Hi Alex,thanks for the video. I like the videos where you fail to repair stuff as much as the successful ones.The reason is YOU WERE LEARNING as you FAILED.Some people say :BUT YOU FAILED :No _ what you did was learn what did not WORK-in this particular case.The tough repair like this are the best teaching tools,in my opinion.You went for the most common fault in your view,and it was wrong so far,so do you give up,i hope not.At the same time i do realize you run a business and taking 1 hour to fix something is just not cost effective,but from a hobbyist point of view WE may spend ALL DAY trying to solve 1 laptop repair because it's usually out OWN laptop.haha So thanks for the no fix vids,they are just as important and entertaining as the completed repair ones.

[@bassembenabdallah8662]

your words are great man .... that's the beauty of it .... we watch Alex videos and learn also we enjoy the beauty of sharing, for Alex it's noy just a Business, you can see that the smile on Alex face when the fevice is fixed... I see no fail here I see a wiw win video here : for Alex and for us to watch and learn : 💪♥️😊

[@davidellis417]

From Asus website. The two-color LED provides a visual indication of the battery's charge status.Refer to the following for details: Solid White : The Notebook PC is plugged to a power source and the battery power is between 95% and 100%. Solid Orange : The Notebook PC is plugged to a power source,charging its battery,and the battery power is less than 95%. Blinking Orange : The Notebook PC is running on battery mode and the battery power is less than 10%. Lights off : The Notebook PC is running on battery mode and the battery power is between 10% to 100%.

[@Shocker99]

Looks like the charge controller is going crazy

[@griparian]

Thanks for the comment about the good repairability of ASUS' products. One reason that I'm looking at your videos is to get an idea about which are the electronics to steer clear of, because of either bad design or bad components and consequent consistent breakdowns. So keep those comments coming. They are much appreciated.

[@marcs9068]

Alex: "Wow, we did it." Me: Looks at time left in video "Uh Oh"

[@michelleanderson985]

You can find similar cpu on graphic cards but do a thermal scan to find critical components and check if the fan draws more power than it should. Also inspect the board on the other side.

[@Omar-eh2dr]

In 00:06:27 there is a small resistor/capacitor located at right side of the 4C09B MOSFET which seems to be blown. Could you check it out

[@strangepsy]

Same thing was happening with me a year ago i was shocked to see that everything was fine on mother board no burns nothing. I cleaned it checked again still find nothing. Then at last after trying everything i put laptop in bag with Silica gel pouches on bottom middle and upper side and sealed the zip. And went for sleeping. Next day it was working like new and booted with just 1 touch. 😅 This experience was totally unexpected for me but learnt a valuable lesson that sometimes we have to take things easy not to make them complex by Overthinking. 😅

[@hoggif]

I would guess a disconnected mosfet gate rail if they turn on and off randomly. You can charge a disconnected gate with multimeter and then it can be turned on, as long as the discharge takes (that can be a long time is gates are eg. parallel and there is no circuit to blead it). Not sure if there is a case for that here, but often it can bite you unless you think of the high isolation and the gate capasitance than can keep it on even with power removed from it.

[@FixTronics]

Check and replace if possible the vrm ic

[@napoficial7123]

It's what you do. It's experience. That's Alex teaching for free. Thank you Alex!

[@batman8589]

A comfortable & confident person is willing to share their knowledge.

[@wartlme]

3:05, something on a cap.

[@instantmuffin5]

Faulty gate resistor? I mean usually they would fail towards high resistance or even open circuit, but maybe this one is just different. Maybe heating up the area caused a solder bridge underneath one of the gate resistors.

[@berndreiner7159]

Thought the same.... 🤔🤔 Alex already had this same issue a time a go were also a member told him that idea with the gate transistor where it fails a few days after the repair 👌🔝🔝🔝 Good video as always Alex greets from Austria 🇦🇹🇦🇹

[@nigelwright7557]

Mosfets rarely blow for no reason. Simply replacing them doesnt get rid of the reason why they shorted. Also a blown mosfet can take out components that drive them.

[@gelosul]

That last seconds cracked me up.😂

[@a13Banger]

I'm glad I saw this comment because I had stopped the video to come read comments RIGHT before it lol Too funny

[@kind3r_sol]

LFG blooper reel 🤣🤣🤣

[@justintraer5181]

I think the board should be removed from the chassis completely for an inspection and cleaning. I've seen times where some foreign object on the otherside of the board has caused me grief.. usually luck was on my side and removing the short was enough.

[@ctrea91]

I wasting a lot of cotton bud and IPA now i learn sharpie trick. Very handy. Credit for that.

[@byronwatkins2565]

The gate signals should be supplied by a buck converter IC. Locate and swap that?

[@askdiatom]

For those planning to use the Sharpie trick to read chip markings, please remember to credit Alex, the person who shared the trick originally.!!😊😊😊

[@instahawk8422]

I’ve actually seen a lot of people do it marking the chip to know it’s orientation prior to watching this channel

[@askdiatom]

@@instahawk8422 ....to know its 'orientation'....☺

[@KC-nd7nt]

Any chance the power port is fractured and the power draw is just enough expansion to cause a fault ? Great video Great teacher Thanks again

[@trichert7360]

5:07 Alex is doing pretty well with micro-paintings too 😉

[@adamkusion8844]

Maybe the power IC which controls signals on gate is bad, like on olders AMD GPUs.

[@aplhsindia]

I have same using from 6 years this is good hardware

[@Pdus64]

I LOLed when you dhikir after you dropped the battery in the end 😂. That's a rare reaction.

[@ZulhamS]

lahaulla wallakuata illabillah.... respect to mr.allex

[@Franklinveterinarycenter1of4]

question: The initial faulty mosfet was a p channel mosfet; Is it possible that you turned it on by checking the source with positive probe and the negative probe on the gate? you might mistakenly judge that the mosfet is defective when you measure drain to source resistance since the DMM will read 0 ohms.........

[@MasterJediSean]

Isn't there a controller IC for the Mosfets? perhaps this is an issue?

[@dominikg4334]

Maybe plug charger in and with thermal camera have a look what's getting worm first may give an idea ?

[@issacbourne5111]

Here's how the blinking works. It looks like it's blinking a 211 code. The big pause for 10 seconds means that the code is over. Then it'll blink the code again, and pause again. Just so you can see it again and get it right. So the blink and the small pause is the first number and the blink in the small pause is the second number and the blinking the big pause is the third number and the end of the code. Codes can vary in how many numbers they have. The big pause is always the end of the code. I used to work on automobiles when they first came out with the computers, and that's how the computer error codes worked in on the dash. That's how I recognize this method.

[@MehmetSutas]

Are mosfet drivers fine?

[@andrasszabo7386]

I am a collector of old laptops and phones. Old Asus laptops are reliable until DDR1, Dell and HP NEVER were. I also have a lot of Toshiba and Fujitsu laptops that are not easily fixable, from the 90s.

[@gorky_vk]

One of mosfets missing pulldown resistor, it probably stay open for too long killing others in process. And maybe more then just mosfets.

[@alexhunter0815]

Inspecting boards fast as Superman? Super-Alex is born 😂😊😉

[@intraterrestrial69]

so, can somebody remind me again why we have decided to ditch socketed cpus for many laptops? i dont see how products are better off for it. I felt ripped off even when I found out my Surface Pro 5 had a cheap, somewhat slow emmc surface mount ssd. So when that thing runs out of good block my whole device is cooked, or i have to send it to Northridge Repair? Whats up with that/

[@inc2000glw]

Don't forget the on board ram and the optical drive😊

[@mayuramunasinghe1983]

Maybe the driver IC or replace all the vcore mosfets because they work in parallel mode. I had the same issue with a Dell. changing mosfets one at a time didn't work like in your video.

[@ramzeus7387]

in all of the video i watch when it comes to fixing gadgets this northridgeFix i enjoy alot and i just subscribed this morning and i'm still watching all of your videos..lol fells like netflix on me haha

[@RomeoKGT]

Try the Flir camera while powering on laptop ?

[@top_G_82]

Machalalh brother i love your work

[@inc2000glw]

Old gateways 6 beeps was that security keyboard screw removed feature

[@stevedebeukelaer1424]

Hi Alex you need always to change the controller low and high side mosfet always together by buck converter other you get such issues or issues laptop one hour work then died

[@lucymc0191]

go with your gut alex CPU ...YOU ARE THE TRUSTED ONE ....

[@Rodox2k10]

Here's a rhyme they ought to sing for their newest commercial: *ASUS Products* 🎵You fix one component, then two go bad. Don't fix OUR products, BUY new ones instead.🎵

[@georgeleahu9577]

Hi , fiind the controller for those mosfet and change with good know one and after that change also all mosfet in that area

[@patrickamiri5596]

You should create a channel for the boss of all bosses in real time, maybe without sound (or chilling music so we just can watch him disassemble and assemble all the different devices, because that would also be a big inspiration to people, and besides that you can use it for proof if a customer complaints telling you that you destroyed something in the device. Even though i have alot of experience myself i would definitely watch it 🙂

[@thadofalltrades]

Is there any benefit to removing all the mosfets on a donor board and keeping them in a labeled compartment?

[@zatoichi3134]

24:51 - LOL!! pure comedy, "Aziz more light"

[@DanRing]

Every time I've seen this issue its been in the fet controller circuit. without a schismatic its almost impossible to pinpoint. good luck

[@johnsmith-tr3dh]

WOW ! The sharpie tip was awesome !

[@_rico5743]

hi, maybe a faulty regulator who controls all these MOSFETS ?

[@mrusli7673]

Happy Eidilfitri to you sir!

[@shadowarez1337]

Have you ever had a Framework Labtop on the shop for repair iv seen these for ever and yet never have I seen them come into your shop. After seeing the staggering amount of Asus/HP/MSI come in for same issues I refused to buy those so I opted to wait for a nice next gen Framework with a amd cpu and dedicated GPU. Since they can later be repurposed into a tablet 😱.

[@youtubeuser206]

my asus strix is only 2-3 years old, and after the first year the battery stopped holding a charge and only worked while plugged in... recently, i went a month without using it, and now it wont power on and the power light doesn't turn on i removed battery, reseated the ram and hd, nothing working tomorrow i will check the charging port and other components with my multi meter. ive only used my multimeter once, so i'm not sure what settings or what points to connect i really can't afford a new laptop 😢

[@gary00832]

I really like the riddler question mark!!!

[@easierrogue]

Does that laptop maybe have a battery lock feature? eg it wont start without main battery (also used as the bios battery), that would make troubleshooting a pain if u dont have a spare to try

[@markdjdeenix6846]

ASUS really do have mosfet problems across several ranges of logic boards CPU’s are being destroyed in many different ways

[@NBMSCH]

feels like they doing in on purpose to force people buying new laptops

[@thekennethofoz3594]

Thanks

[@patrickkoller6107]

Why didnt you messure the caps? Maybe one is faulty and causing the problem.

[@tradeswinners]

Considering you Laptop Model, Do a Jumper reset by metal tweezer by shorting the 1st and the 4th Pin.

[@matthewmclean9734]

Its similar to pre obd vehicles blink their service engine light to tell you the error codes. code 1 and code 12 is what i saw

[@gabest4]

Can you pop a capacitor with the heat gun once?

[@ilanbinkovitch6054]

23:06 : top right : a cap is too dark for my liking

[@kpelectronics]

Also, who those mosfets feed?

[@Anachronos1]

Disconnect coils from CPU and put new mosfets and try it with disconnected coils while monitor with oscilloscope for waveform. I had similar problem, when i measure mosfet and he look ok until start working, then he make short to ground.

[@warunakangara6791]

That is strange, please inspection with your thermal camera

[@richardlyd7450]

thermal camera?

[@DONALD-MAGA]

Why no thermal cam?

[@chipinnc]

It's NOT a faulty CPU causing the "problem", however the "problem" may end up blowing the CPU.

[@paschalokeke3216]

The last scene was like BEHIND THE SCENE

[@Franklinveterinarycenter1of4]

you turned both the p channel mosfets on.......

[@birsingh5388]

I have custom made motherboard of my laptop, and its not working and my laptop is not turning on. I have a question, if i send motherboard to you would you like to have a try to repair that? Please let me know, so i can send that to you.

[@imranclickable]

Hi, can SSD be fix? I don't want the data just can be use back

[@wesselscholtz861]

Hi i have a samsung laptop that powers on and fan runnimg but no display on screen.. No indication of ram error.. Any idee what it could be

[@JJ21lives4ever]

The lone whistle... Perfect fit

[@georgegonzalez2476]

I don't know if you've revealed this, but do you give the owners of dead boards any small rebate back. You get quite some benefit with all those spare parts, so a little cash back sounds equitable. Maybe $15 if you're generous? Thanks.

[@TechProFury]

Many could be from people not paying fee, and abandoning

[@halit1919]

Sondaki sözlerin beni abone yaptı😂

[@аватар-д2т]

Hi! I try to leatn english, what do you say after 24,50?)

[@jeetkumar5399]

Asus vivobook 14 i3 11th generation is not getting on and after eject its nvme it is getting on, please give me advice to fix this problem....

[@gymstrengthhakim8453]

Very strange, i think that the microcontroler is faulty ?

[@pedroduarte5052]

Maybe the charger is causing the problem? you could try with just the battery?

[@aliyuabba4575]

Perhaps the diodes or resistors

[@NervousNoodles]

For Arabic speakers out there, what did Alex say at the very end when the battery dropped out? 😂

[@igrewold]

it is a prayer to God : God you are the Willful & Powerful, so help us La = no Hol = Will Wa = and La = no(r) Gowata = Power illa = except, but bi = with/from/by , preposition Allah = God

[@msm88now]

Arabic speaker here. He said something like: There is no power but from God. We, Muslims, say that when we are faced with troubles we ask god for help, patience, inspiration,...etc.

[@silentnll]

i think he said something like, this is going great. I have the time of my life. please god give me more days like this. 🤣

[@NervousNoodles]

@@msm88now Quite fitting to ask God for power when the source of the laptop’s power (the battery) had just fallen out.

[@asam982]

he says no power unless with god..لا حول و لا قوة الا بالله

[@thankyou7741]

I am not expert but I have been watching your videos for a while. may be those MOSFETS are in parallel mode and need to be replaced together with same type as in one of your previous video

[@doyouevensciencebro..6678]

any update??? 🙋🤦🤷

[@dzsemadhs1816]

I think on this lap top your issue is broken ECU it happend to me on some older model of hp processors they blink like yours lap top

[@dmartinnj]

Guessing CPU too. Only explanation for intermediate strange and inconsistent happenings

[@linxkarino2348]

for me i use thermal paste, usually i work on devices that thier mosfet have thermal paste on i just smudge it to the numbers just like that it shows

[@xDB8x]

Have a similar laptop with the same issue, hopefully you can find what it is causing that...

[@repairhubkent]

Love the sharpie trick :)

[@thedude1249]

✨When in doubt, always blame it on the Gremlins.

[@registrazioniduemillaotton6030]

Reminds me of that MSI laptop where the mosfets work in pair

[@jurgenkruger3932]

"We do not have a dead short." After turning on: " We do have a dead short!" Looks like a shoot-trough situation, caused by a faulty PWM controller.

[@mtmadigan82]

You really should start selling a "special" sharpie for reading chips. 😂