Asus Vivobook S15 Laptop Won't power on. What's wrong ?
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- เผยแพร่เมื่อ 8 พ.ค. 2023
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NorthridgeFix.com If you are local, drop in and say hello
NorthridgeFix
19365 Business Center Drive, Unit 7
Northridge, CA 91324
Phone: 818-668-7058
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"If you don't start you will never finish" ..... That is my new motto. I do procrastinate at times, so thanks for that Alex!
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.
i can see a suspect C.Cap at 3:04 in the video ..... having fun always watching your videos and your professional electronics repair
nice find haha
Alex: "Wow, we did it."
Me: Looks at time left in video "Uh Oh"
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
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
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.
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!
@@manh7897 Thank you very much!
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!
Hope he sees this. Can the VRM controller be replaced?
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.
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 : 💪♥️😊
As for me, PWM IC is operate the gates of this MOSFETS, so it must be change to.
3:05, something on a cap.
That last seconds cracked me up.😂
I'm glad I saw this comment because I had stopped the video to come read comments RIGHT before it lol Too funny
LFG blooper reel 🤣🤣🤣
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.
Check and replace if possible the vrm ic
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%.
A comfortable & confident person is willing to share their knowledge.
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
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. 😅
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.
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.
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
WOW ! The sharpie tip was awesome !
5:07 Alex is doing pretty well with micro-paintings too 😉
It's what you do. It's experience. That's Alex teaching for free. Thank you Alex!
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.
I LOLed when you dhikir after you dropped the battery in the end 😂. That's a rare reaction.
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.
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 🇦🇹🇦🇹
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.........
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
Machalalh brother i love your work
The gate signals should be supplied by a buck converter IC. Locate and swap that?
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.
I really like the riddler question mark!!!
Is there any benefit to removing all the mosfets on a donor board and keeping them in a labeled compartment?
Inspecting boards fast as Superman? Super-Alex is born 😂😊😉
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.
I wasting a lot of cotton bud and IPA now i learn sharpie trick. Very handy. Credit for that.
Maybe the power IC which controls signals on gate is bad, like on olders AMD GPUs.
Love the sharpie trick :)
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 😱.
Isn't there a controller IC for the Mosfets? perhaps this is an issue?
The lone whistle... Perfect fit
Happy Eidilfitri to you sir!
lahaulla wallakuata illabillah.... respect to mr.allex
Maybe plug charger in and with thermal camera have a look what's getting worm first may give an idea ?
Are mosfet drivers fine?
One of mosfets missing pulldown resistor, it probably stay open for too long killing others in process. And maybe more then just mosfets.
I love the bloopers there at the end lol
Try the Flir camera while powering on laptop ?
Hi , fiind the controller for those mosfet and change with good know one and after that change also all mosfet in that area
Every time I've seen this issue its been in the fet controller circuit. without a schismatic its almost impossible to pinpoint. good luck
Inspect on thermal camera when turning on laptop what is happen with replaced MosFet's
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
Sharpie 😄at first I thought you said "car key" 😂
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
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 🙂
Can you pop a capacitor with the heat gun once?
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.🎵
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.
ASUS really do have mosfet problems across several ranges of logic boards
CPU’s are being destroyed in many different ways
feels like they doing in on purpose to force people buying new laptops
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/
Also, who those mosfets feed?
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
go with your gut alex CPU ...YOU ARE THE TRUSTED ONE ....
For those planning to use the Sharpie trick to read chip markings, please remember to credit Alex, the person who shared the trick originally.!!😊😊😊
I’ve actually seen a lot of people do it marking the chip to know it’s orientation prior to watching this channel
@@instahawk8422 ....to know its 'orientation'....☺
Hi, can SSD be fix? I don't want the data just can be use back
hi, maybe a faulty regulator who controls all these MOSFETS ?
The last scene was like BEHIND THE SCENE
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 😢
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.
Many could be from people not paying fee, and abandoning
thermal camera?
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....
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
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.
Why didnt you messure the caps? Maybe one is faulty and causing the problem.
24:51 - LOL!! pure comedy, "Aziz more light"
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.
You really should start selling a "special" sharpie for reading chips. 😂
Perhaps the diodes or resistors
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
Have a similar laptop with the same issue, hopefully you can find what it is causing that...
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
Thanks
you turned both the p channel mosfets on.......
Hi! I try to leatn english, what do you say after 24,50?)
ic drivers and mosfet replacement all at once :)
Maybe the charger is causing the problem? you could try with just the battery?
Guessing CPU too. Only explanation for intermediate strange and inconsistent happenings
May be
Regulator ic
I have same using from 6 years this is good hardware
good trick, was using tape to see the markings.
Awesome ✌🏻✌🏻✌🏻
Reminds me of that MSI laptop where the mosfets work in pair
nice trick to see the numbers on chips
Very strange, i think that the microcontroler is faulty ?
It's NOT a faulty CPU causing the "problem", however the "problem" may end up blowing the CPU.
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
Yes I like the question mark 😅😅😅
Considering you Laptop Model, Do a Jumper reset by metal tweezer by shorting the 1st and the 4th Pin.
✨When in doubt, always blame it on the Gremlins.