Hp 15-AH150na laptop, dead, not charging - liquid damage repair

[@abrahamfoam7376]

As a firm believer in the right to repair movement, I respect you very much sir. You are an amazing teacher, more like a magician. 🌼🌼🌼

[@gershonlapokimon4698]

The customer is a dirty bastard however Sorin you did not replace the faulty capacitor, also you did not cable managed that ribbon cable correctly, i hope you did that off camera, if I was a customer and I was getting this type of service I wouldn't be happy. You really should take a picture before you disassemble before reassembling to make it easier to follow how things were. But if you do that off camera to save video time, that is fine. I bet this particular customer would not even bother but some of people are neat with their hardware.

[@davidlguerr]

It was clear that the short was on the other side of the board. If it was one of those caps, it would be quite hot, and we would see the petrol evaporate quickly. I could see it evaporating from the PCB.

[@mamunhasan1672]

Hi mr Sorin. My name is Shaon. Greetings from south africa. I would like to comment on small matter. U can look for a used s60 CAT phone. It has a flir thermal cam on it. I just bought one on Facebook market place on my area. It does the job to check the shorts. It coast me 1500 rand. In dollars about 75 British pound. I hope u can get one to make ur work more easier. Thank you Mr sorin for sharing your knowledge and skill.

[@kex1xik]

Also Seek thermal compact USB camera for smartphones does the job well (I use it myself) www.ebay.com/sch/i.html?_nkw=seek+thermal&_trksid=p2334524.m4084.l1313&_odkw=seek+thermal but this one would be probably difficult to connect to a camera as you need their smartphone app to use it

[@marcusroth2428]

Somebody, please buy this man a Flir cam. He deserves it!

[@none0049]

don't insult him like that😊 clearly he has flir cam right there lighter fluid and his finger👍👍

[@guidoneumann9159]

So you just removed bad capacatitor but did not solder a new one?

[@oliveliobygracetv6133]

Yes I saw that

[@zx8401ztv]

And i was waiting for you to find the hot spot and say ' AYYEEEEEE' ha ha . I'm supprised that the mess on those chips and other parts didn't kill anything. The bad capacitor saved the day by shorting the main supply out lol.

Absolutely true! Hero cap

[@mladen1000]

You can open the keyboard, and you can fix a lot of things, but for such a job you need a lot of time, so it is always questionable for a service if it is profitable, for a private person who has a lot of time, time does not matter, so it is worth trying

[@billmayes4483]

thanks for being a good "teacher". Dodgey School .

[@lubegamartin6847]

What is that liquid you use

[@fburt100]

I wish I could bring my laptop to you! I'm having a strange issue on an HP laptop. The screen no longer works, but the computer does. The connection on the board where the screen cable plugs in is getting really hot.

[@Tdog1736]

hello rando with a dead laptop from water damage awell i found that a buzzing sound comes from a grey square labeled ir5 it only has 2 legs and gets hot when buzzes could that be what died, any suggestions? thanks T edit: and if so what is the part names and where could i find it??

[@ohmware2020]

people in discord are crazy, they said do not inject 19v on current sense, but wow sorin, maybe those high end person in your discord is not watching your vidz

[@sandaruliyanaarachchi2404]

My laptop in a new one.its a Ux325ea.it was removed due to ticking sound from the fan. The battery port was removed and fixed again as it was before.But the laptop doesnt turn on and even i if i plugged it to the charger it doesnt turn on the charging light too.Can i please know a reason for this issue😢

[@electronicrepairservice2020]

Always entertaining to watch you troubleshoot & repair the fault(s). Thank you for all of the repair videos you do. Always learning.🤓

[@sosscs]

Why you didn't replace the damaged capacitor? Is that okay to left that empty?

[@mohammadhussaini8483]

Hi as i know You didn't change the damaged capcitor

[@jcb208]

I would clean that with disinfectant before I touch it

[@fredericomacias5547]

Sorin, ask Ash a proper nice thermalCam

[@asdrty258]

The lap working without one egg like hitler

[@metalacos]

classic one, i like it :)

[@rumenpetrov5755]

Hi Sorin I like your work, but one thing I think you are wrong. When you test motherboard with voltage injection methot you use 19 v. I think this is wrong. If you have a short mosfet on cpu power supply you can burn the cpu for example. You can use 1 or 2 volts for exaple. Sorry for my bad english. :)

[@electronicsrepairschool]

You can't burn anything with only voltage :) The current is the one burning things

[@davidasare6841]

@@electronicsrepairschool Plus there are lots of videos where you have already advised us not to use 19v to inject voltages, especially on Ram power supply, CPU power supply etc, because we risk damaging the board. I advise the person who posted this comment to watch more of sorins video. You can't just draw conclusions by watching one video. There are even videos where's he's advising his students not to be quick to grab a power supply. This man is a veteran in electronics. Thanks once again Sorin. Mr Excellent, Mr Doggy...lol You always get your point across.

[@rumenpetrov5755]

@@electronicsrepairschool Ok I agree with this. Can you explain me if you have short mosfet in cpu power supply and inject a 19 v. This voltage pass through the cpu. Can you burn it. May be I wrong. If I wrong I appoligize you.

[@rumenpetrov5755]

@@davidasare6841 I watched them all.

[@MindYourBusiness1970]

@@rumenpetrov5755 19v Is the main Power rail , other Power supplies have different voltages (you don't get 19v from USB right?)

[@angelmartinez8778]

You use lighter fluid on a laptop?😳

[@PawePolak]

Sometimes i open the keyboard, its not that hard, but you must have a very lot of time and luck to not broken key hinges because you must take off all keys. I have a video with cleaning laptop keyboard in my little library :)

[@electronicsrepairschool]

This one? kzbin.info/www/bejne/jnKsap2nmK6BedU This is crazy :D

[@PawePolak]

@@electronicsrepairschool yes it is :D

[@mustafaabiib1916]

How to avoid this damage your pc

[@djasidmuzik3888]

good morning am kemar from jamaica you are doing a good job

[@nsovomabasa5014]

where do we get the datasheet of the motherboard?

[@bFABIO]

why did you not put another capacitor?

[@tony42hajdu]

how could that thing be turning on so long

[@ЗлаткоЗлатев-э5к]

Blow with Air keboard

[@MindYourBusiness1970]

Almost a long screw damage :)

[@hinny2005]

When you inject voltage where to you usually inject it and does it matter what side of the component?

[@davidlguerr]

One the last component where the voltage is missing, on the plus side. Usually.

[@lucasmunoz9995]

lets buy this guy a thermal camera

[@jcb208]

Why docent the shop buy one along with ultrasonic cleaner ,

[@kasiamorgan1177]

thermal camera is cheap soo... if he want his job be easly and save some time he should buy itself.

[@kasiamorgan1177]

@glyn hodges work with thermal let U save time and fingers

[@Brian-ausie]

You are one great tech,

[@RAM7RO_BU1LD3]

I have a omen laptop-15 with water damage. Can it be fix? 🥹

[@SuperPee78]

Wow this is the 4th video I'm watching so far and my god you sir are a genius... Your knowledge is priceless wherever you work you are a fukkin BIG ASSET Amazing how you jump straight to the problem and mostly know where to look... truly amazing brother...

[@Ronnie01964]

I'm not a technician but you removed the blown capacitor but you didn't replace it?

[@andreiuul1]

I did open broken keyboards with keys not working and did manage to fix the traces in order to make them functional again, but the fix is not reliable usually and IT IS NOT WORTH THE TIME. Usually, unless you have a very expensive keyboard that somehow is still using membranes and trace sheets, they best action is to just throw the keyboard away and replace it.

[@johnoddvar1967]

Sorin. I tryed to fix a laptop today. It was a HP Elite Book 755. It seems to be of good quality. When i plug the charger the charging lite is blinking and also the power buton, but it dos,nt do anything. First i disconected the bias battery, then tok it apart with care and i disconected the the battery harddisc and ram keyboard and powerbutton screen. It was of course i disconected the blinking, but i found the blinking on one of the coils. 19 volts is ok. i had one coil with 5 volts and one coil with 3,3 volts. and one coil with blinking 3,3 volts. I told my frend that i cant do so much more because i didnt have more than a multimeter. Though he gave me the laptop and said thank for trying. What do you think it could be. I dont think it is a short on this 3,3. the diodes lights up good and i cant mesure short. Do you hav any ideas?

[@MrRvdbeek]

Sorin nice job. You disconnect the WiFi antenna. Did you ever broke the connector? I did a few times but what do you do then? Can’t fix it professional can you

[@davidgh4013]

hi sorin, thnk you for the videos, i leaned a lot from u, but now, i need ur help! i have a lenovo b575 laptop that is dead! bios chip 3.3 is 0.652 volts and the 5v is gone.(i checked on the chokes and mosfets, mosfets were good and they had 20 volts and no short) someone told me your cpu is gone or its a fch issue, but i think its only the 3.3 5v ic (the driver chip) could you help me out?

[@fa.canhizares]

Very LAMBÃO

[@ismailmohd1980]

1.are you replace back with new at short part or just leave only like nothing there, 2. any function of mainboard part have a function like before 3. or just ignore for any problem after?

[@ralgor100]

5 minutes lol

[@raymondgalland8074]

on tv ir remotes you open u and clean rubber keys and board contacts with alcohol and it restores the remote functions lol no need to buy a New remote

[@raymondgalland8074]

ya they Don't want you to fix them lol but I Do Anyway

[@ciprianpeica85]

Sorin! The fastest way to find short is to use 1860 high discharge battery. Please give it a try on video

[@toxicmetalgearlance3104]

It will work wiout that capacitor? How does it effect the function? Thank you for your teaching I enjoy it

[@babayaga5225]

Capacitor went nuke! -Sorin: What do you think it the problem?

[@Zettoman]

what would be a good starting point to learn to fix stuff like this?

[@XLR8RRICK]

Watch all of Sorins videos

[@johnjohn-yp5tn]

Good Job Sorin

[@kukoj]

i see many laptops everyday, but its always kinda disgusting how people let their devices being dirty like this. :D

[@εηβερΠι]

Well, we talking with the customer, if he want that we change the Keyboard we do that (extra Charge).

[@shamimhossain2449]

Bye 🙂

[@kasiamorgan1177]

Did You replace this cap ? What with other components ? Did You resolder them to be sure that they will not be corroded for some time ?

[@Truthall]

so typical in the industry when clients roll up with these filthy machines, but the excuses of what has happened is more about what they dont say than what they do say happened

[@nickpierpoint4116]

I'm an electronics beginner, how come it worked when you removed the capacitor and didn't replace it? id really like to know, love the videos also.

[@danieldegraaf]

I have the same question so unfortunately I can not answer. Hope we get an answer.

[@kex1xik]

There are many many small ceramic caps which are there as a "recommended" bypass capacitors. But many of them are not totally necessary. Removing a lot of them could cause some interference/instability but removing one may not be a big deal. Just check everything works and if it does, don't care. :P

[@user735_]

@@kex1xik Yeah, that's the main reason but he mentioned he had an schematic so the best practice would be to replace it.

[@xlwirelesselectronicrepair]

Nice work

[@shanelloyd8366]

Thanks, Sorin very interesting.Really nice way to teach and share your repairs. Keep it up to its so Appreciated.

[@nderituthuku1245]

From Kenya, thanks for these videos

[@malc568]

The problem with this laptop is that.... it's a HP laptop.

[@ivomagalhaes1]

onde comprar mosfets e chips? não se tem este equipamento em casa para desoldar e soldar nem um microscopio.

[@stevedebeukelaer1424]

Hi Sorin it is very dangerous with 19v to main power rail on the current. If you have a shorted highside mosfet you will instantly kill the cpu, gpu or PCH

[@kex1xik]

This is theoretically true. But in practice I think it would have arrived already killed in such case. See - the input mosfet is not turning on so superio/whatever probably detected over-current. But if it were high-side mosfet on a regulator shorted, it would need only a very little current to kill everything after the regulator with 19v.

[@stevedebeukelaer1424]

@@kex1xik yes but therefore are the first second mosfet who stops the current. There are there to protect those rails., if you bypass them then you sent it right to the cpu, PCH , etc.

[@kex1xik]

@@stevedebeukelaer1424 ​ But that first mosfet can be turned off only if PCH/EC detects over-current. But at the time it would detect over-current on this 19v rail with high-side mosfet shorted, it would probably be already too late (high voltage would have reached the cpu PCH). Note it cannot detect over-voltage because 19V is expected to be at the regulator input (it is just not expected on the output but I doubt there are over-voltage checks on every regulator output which would turn this first mosfet off). Without voltage there is no current. So if there is over-current AND high voltage through a shorted high-side mosfet, it is already too late.

[@stevedebeukelaer1424]

@@kex1xik Hi maybe is it true but I fixed already laptops with shorted highside mosfet where the cpu not died. But replace the all mosfet + there driver. But I am sure if I tried to inject 19v it was not possible. Best regards

[@kenken5599]

thank you Mr.sorin for the good lessons

[@oz457]

Can someone explain why he didn't replace the capacitor with a new one? Why do they add a capacitor then when it works without a capacitor???

[@howsyourdangler]

There are many capacitors in parallel, removing one wont make a difference. Technically the capacitance will be reduced but it will still work.

[@strongspear1918]

Hello - I came across your channel searching for repair info on HP Laptop 15-ay039wm that suddenly has a black screen with the CAPSLOCK blinking once. I have read that this indicates a CPU problem. Is this correct and do you have a video on how to repair this problem? Thanks!

[@dirtierquilt9640]

Hey i have this same problem... Did you repair it? How?

[@melplishka5978]

I love waking up too your vids Sorin.

[@donald1056]

Needs another stick of ram

[@younespl8762]

Nice job Sorin you’re the best 👍🏼

[@cagataykilic7978]

you can open keyboard but as some other comments already mentioned its very time consuming. keys and pads are molded together with small plastic pins, they can be melted carefully and sepatate metal shield and key pads. The way Sorin fixed with a transistor is much more efficient.

[@kasiamorgan1177]

the better way is clean it with ultrasonic.

[@FixTronics]

I like you Sorin

[@محمدعلیشریفی-ع2ر]

You are a good man sorin

[@niklaus246]

Atât am vrut sa văd 😀 FastAF as always

[@a.z.7193]

When will you ever buy a thermal cam?😁

[@XLR8RRICK]

He has petrol and a finger no need for expensive tools

[@kintag4459]

Thank you M.r

[@inventorOz84]

This was a sloppy repair, I would clean the motherboard better, and I would replace that capacitor, that you removed...

[@007mrdarcy]

and charge a bloody fortune for doing it....

[@TaperedWiz]

How you know the capacitor value if no schematics are available??? In most cases the capacitors are used to be "just filter". If removed and not replaced, nothing will change...

[@rfr653]

good job mate

[@عامرالساعدي7616]

hello sir want web sit that give me file for any bios freely

[@XLR8RRICK]

Join Discord: invite.ers.repair/

[@harryohanson]

What are you using to clean the board?

[@edwardlewack26]

99% Isopropyl Alcohol

[@weerobot]

Cool..

[@ruudb72]

Good video!

[@KNFIX-CUCHI]

👍👍👍👍👍👍👍👍

[@panagiotiszafeiriadis8425]

Great job 👍

[@mrlintonious]

I see you use Zippo lighter fluid to clean and trace the Heat. Can one also use Electrical Contact cleaner to trace where the Heat is coming from? Is the lighter fluid also safe to use? Thanx

[@XLR8RRICK]

Lighter fluid leaves no residue and contact cleaner is more aggressive chemically.

[@mrlintonious]

@@XLR8RRICK Thanx for that.

[@howsyourdangler]

@@XLR8RRICK lighter fluid actually leave a small coating of light oil on the board once the solvent evaporates. This helps to protect the board if there is any residual moisture in the keyboard that might seep out onto the motherboard after the repair.

[@nrg16108]

Sorin you tested for shorts with voltage settings on the meter?

[@XLR8RRICK]

He was following the 19V power rail when he found the open circuit so he used 19V starting with 2A then increasing to 4A.

[@opal177]

Sorin explains why he does that instead of Ohm setting where it applies, in another, earlier video. He uses the diode test mode when semiconductors are in the path, as they start to ´open´ at a certain voltage, typically diodes at 0.7 volt, Schottky low drop at 0.3 or something. Otherwise, we might draw wrong conclusions when measuring. I recommend you look at all his videos, from the start. He shows so many diagnostic tricks nobody will tell you about. He discusses basics that do not always spring to the mind, taught only by such an experienced man like Sorin. Sorin makes us understand to recognize the words, so to say, when before we only saw the single letters.

[@izzLeqir85]

Hello teacher ..iam from malaysia

[@ibrahimbirgul5769]

Hello teacher 💪

[@shadrackongeri9559]

Love from Kenya Sorin.

[@rumenpetrov5755]

Thermal camera is a good idea!

[@gadgetexpert3566]

Hi hellow sir, what is the benefits if i join your channel. Thank you 😊

[@wetering]

You will learn a lot.

[@onetimelifebigcamera1607]

😍

[@Lackooo84]

Hey Sorin, when will you buy a proper microscope with non blurry but sharp image quality? :D

[@alant7797]

hows it going, wonder if you know what my problem is. I have a samsung rv510 that randomly shuts down and restarts. I have changed power jack as this was broken anyway, repasted both gpu and cpu, checked ram, battery charges to full then dies after a few minutes without the power supply plugged in. This problem is doing my head in. Could it be just as simple as buying a new battery or do you think its a dodgy component mosfet, or cap cheers alan