this is why i subscribed - there are no fancy intro, intermissions, summaries at the start of the video, just a dude slowly marching forward towards solution( and having some fun with sparks)
I love the simplcity of this guy repairs, no expensive oscilloscopes,no big workbenchs,just patience ,rational thinking...soldering iron and a strip of wire. :-) . Rispect.
Excellent. Of course why not. Every time you explain everything. so it is very very helpful for learn how to service hardware of laptop. God bless you. Thank you very much.
I did my first laptop motherboard fix thank's to 15 minutes worth of your videos. It's quite simple once you get grasp of what you need to find. I plugged 19V on the power connector and got 19V on the mains so the connector and PSU were fine. Next I measured what voltages I get across the PCB, turns out I get 0,8V here and there, but not 5V on USB so that means that power isn't getting pretty from the mains. So I go and check the first 2 mosfets that 19V goes to and 19V didn't get past the first mosfet. I took it off and used a jumper wire and the whole laptop woke up. It's amazing how simple issue can cause the whole laptop to not function. I'm pretty confident now that I can take on even tougher problems if the situation needs it, hence if the laptop is worth saving. Even on this video I get the idea what you are trying to do and while experience helps, I assumed you would just go trough each component until you hit nothing and start taking suspicious parts out. I don't still have the hot air station required for this job to be easy, but I most certainly are gonna buy one now. Thank's and keep it going!
It would be your first fail if you use jump wire on upper mosfet and in that time charger IC doesn't work properly. In this case all 19V would get through the whole motherboard...
@@london4983 Totally wrong, it seems you do not understand the principals of voltage rails in a notebook. The shorted MOSFET is not an UPPER MOSFET because its not part of a switching buck converter where upper and lower MOSFETS exist.
@@electronicsrepairschool hi Sorin m your big fun till date.. i have Elitebook 2560p pretty much the same motherboard but now both first and second mosfet are blown completely.. and now i don`t know from the fuse where to loop the 19v..if you get this please help. thanks
MR.SORIN,I AM VERY HAPPY ABOUT YOUR WORK,IT REALLY.REALLY HELPS ME,THANKS ALOT. BUT PLEASE CAN YOU MAKE A VIDEO OF HOW TO REPAIR ANY 19V LAPTOP CHARGER WITHOUT SCHEMATIC?? THANKS ALOT AGAIN FOR YOUR GREAT JOB.
May God bless u i started watching ur videos just last week n every night i do all night everyday to learn repair from u am so addicted to ur channel now
Am learning not only circuit board maintenance but also how to treat customers. thank you for every thing that you did am always happy the method that you teaching us!
Man your amazing I learned a lot of things from you. Please don't stop making content that will strengthen our IT technical skills. Thank You the content that you uploaded are not taught in schools but by your time crafted experience.
or Sorin.. I like that watch you are wearing here.. better than your new one.. This is another good one.. I learn so many things watching you.. I binge watch your videos sometimes.. 4 or 5 one right after another.. so good.. thanks my friend for taking the time to teach this old man!
Wow nice work watching your videos is one of my biggest investment ..am one of your students simplicity in your explainations and clearity .thank you Sorin
I enjoy watching your analysis and patience sharing your methodology with us. it's always replace with most techs. But why the failure in the first place. I can't ever give up attempting to repair rather than replace. work on car computers/controllers. Circuit boards. But only after they've been replaced for upwards of $1,000.00. I repair and then they're passed to the next unsuspecting customer. I've gained plenty of information and techniques from you. i will add the motherboards and configurations of HP laptops are ridiculous. Thank you again.
Very impressive, Sorin! Power supplies are a pain and it is rarely a solid state device that is the initial cause of failure; capacitors are always suspect. I often used that technique of checking the temperature of components. The difference was usually so small that I would check them on my upper lip until the day that a component was so hot that it caused a painful blister that I remember to this day!
I have 3 of these boards to fix!, all with same symptom, not like this tho, when clicking power button, it flashes white 9~ times (matches no codes i found), the orange charge light can come on, but flashes constantly. I am so eager to fix, happy i found this video, it will help a little.
Messed up design? these elitebooks are the best ones out there. Mechanically exceptionally solid. I have a 2012 2560p with a sandy bridge i7 that I bought used in 2014. Best EUR 200 ever spent. Still a daily driver.
Very inspired by you mr Soren, i want to be a pro of computer hardware repair like. It is very amazing. God bless u always, i am actually new to this channel but i have been addicted to follow ur videos.
Im only watching your videos every day this is PROPER i will keep watching you have a good sense of humor in the workplace KEEP IT UP thanks for all the videos i think i have watched some of them more than 3 times. I see you speaking to someone while making videos is there a discord or are you just realizing we cannot see or hear sometimes ?
thanks for sharing, great job, i had the same problem with an identical laptop, luckily mosfet was not completely destroyed, it was still readable, it is an AON7401
Great videos. Thanks for your teaching. To start try fix motherboards in short like the one in this video, which linear power supply i have to choose? Sorry for my english.
So simpel you make computer with only multi meter and power supply..thats super..have good day..and thanks i like your video every time some new problem and easy fix..
I keep seeing you use a fluid to help find dead components when applying voltage. You call it "Petrol", but that doesn't translate clearly for me - obviously this couldn't be gasoline. What is the American equivelant? I've been trying to bring my motherboard back to life for a week. I've fixed a short, and now I can plug in my charger without it shorting out. However, I still cannot power on my laptop and I'm trying to identify the next fault. Your videos make learning an adventure, and I love it! Thank you for everything. Keep doing what you do!
@@electronicsrepairschool I did not expect such a quick reply! It's like being contacted by a celebrity - I feel blessed that you reached out personally. Thank, you! I will let you know what the outcome is (if any). The original short that was disabling my charger was my second MOSFET. Now I need to find out what is grounding out the rest of the motherboard. I'm hoping with your excellent guidance that I will be able to get life breathing back into this machine.
@@electronicsrepairschool So, my motherboard is pretty soggy now. I've drenched my motherboard in Zippo lighter fluid and I cannot find anything. Am I performing this test correctly? I have applied 19v past the 2nd MOSFET because this is where I stopped reading 19v from the charger. I have my ground connected to one of the various screw holes. I've tested a multitude of the double MOSFETs on my motherboard and they are all reading ground on both sides. I've removed one of them and I'm still reading ground on the solder points on both sides - so this rules out the MOSFET, yes? I'm assuming something is bridging the ground and power circuit somewhere and that is why I'm reading ground on both sides? I just feel lost now. Any guidance you could supply would be greatly appreciated. I was hoping that this video would point me in the right direction, but now I'm just at a stand still and do not know how to troubleshoot this next. Thank you!
@@electronicsrepairschool Alright. After a little bit of disassembly, I found the only component to be getting hot (at 5 AMPS) was the integral processor. So... does this mean my processor is toast? I've watched a bunch of your videos and I do not believe I've seen anything come up regarding processors. Thanks. If you have any experience with working on them, this is an Acer Aspire V17 VN7-792G. If you know any tips or tricks, please let me know or link me to any related videos. Thanks!
Congratulations! You are excellent in what you do! By the way, what's the name of the liquid transparent you use before weld? Also, how much temperature you use in your soldering iron and the other of air (I believe)? You desolder the components very quickly! Thank you
Thank you Sir for all these videos and knowledge you have shairing with us , but i wanna ask you if you are the only repairer in that shop or there are others who help you like diana?
Checks: Power indicator light is on, which means 19v, 3.3v is present. Press the power button, not turning on. Replug bios battery to see if the laptop is frozen. Power button has 3.3v, press to pull to 0v, indicates power button is working. Concluded that all power supply is good but the laptop is not turn on. Suspect super io chip MC KBC1126 is mulfunctional After taking apart, found blown first mosfet near charging port Procedures: Clean out the mosfet, pad is ripped, so bridge from next component to second mosfet After that check with DC power, found charging port + is taking 2.4A, indicates a short to ground. On the second mosfet, using the DC power and found there's something takingpower. Solder a wire to the soldering pad on the second mosfet, and found there's power supply group getting hot. Take off a mosfet, check shortage on the capacitor, still short, put this one back; take the second one off, still short, put this one back as well. Take off the capacitor near them, found one of them is broken. Put everything back. Connect the power and check if 19v is presenting; YES Connect lcd and everything, got a picture, repair is done. CONCLUSION: THIS IS BASIC, YOU DON'T NEED SCHEMATIC FOR THAT! --- Sorin
赵晓明 help me, I have a Acer laptop that works but will not charge. The AC adapter light goes off when I plug into laptop. I get no 19v at dc plug on mobo, so I have a 19v to ground short right at the beginning of the circuit. I’m not sure which component to test, how do I test for bad mosfet?
Hi all your videos I have watched thus far, are Great and very helpful. I have my HP 6730b Laptop. I got it form my friend as he told me it was working fine until one day he decided to switch it on and it was dead. At first, he suspected the Charger and went to buy a new one, then he tested the New Charger still it was dead. Please assist me.
good evening sir, i have been following your video and tutorials.. they have been very helpful. sir i need help with a old model hp laptop. i make a mistake of plugging it with a wrong polarity charger.. so the pc no longer charges but it still works on battery.. pls sir do have any clue on the possible fix
nice video....very easy to follow......what about a laptop working fine on AC,shows the battery, charges the battery but once you unplug the charger, it goes off......can't power up from battery too..Same issue with new batteries..any ideas
Great job. But i have a question. At the beginning of the video you said if you have light on the motherboard it means you have 19 volts and 3.3 volt power rails. And you were relating the problem to the startup chip. Now my question is how can we have 19 volts power rail if we have that blown up mosfet?
h aha ..this was an amazing fix....seriously guys...i nearly had a heart attack when he started tearing away the track on the mother board..i thought...YOU CANNOT BE BLOODY SERIOUS...then i thought ..well how you gonna fix that big hole now..and he bypassed the mosfet ..i thought ..surely that wont work ....and it did ..then when he started ripping multiple chips off the board.....man... this was like a bond movie to me...this guy man....this guy is crazy electronics guy..and can fix ANYTHING. YOU KNOW WHY HE CAN FIX ANYTHING. because he is romanian, and in romania you HAVE TO FIX IT OR SOMEONE ELSE WILL..SAME IN africa or india...not like in england where people just replace stuff or throw million pound laptop in bin....them romanians man...they fix and build anything......they can do anything. the mechanics there can hook up a volkswagen engine to a ford gearbox. all inside a citroen body..no messing.
rundown thomas: Mr Sorin certainly demonstrates how to do gorilla laptop repairs, and WIN. He omits parts, removes & reinstalls chips with NO flux nor cleanup nor fresh solder, and fights a soldering iron tip that looks 100 years old... WOW. He would save a lot of time with a FLIR camera, as he spends a lot of time hunting hot spots. I should be appalled, but I'm truly facinated.
These are very good laptops. i have a HP 8470P it been through heck and back one of the strongest laptop i ever owned. I would have had that apart in 20 mins. If u must watch a youtube video. HP design these laptop like this because they are built to last the motherboard is protected from shock and water.
thanks for the videos. I have learned quite a lot just by watching your videos. I have a Samsung RF710 laptop which has two hard drives bays, one is working but the second one the motherboard is not detecting. Do you have any idea how I can fix that ?
Dear friend your video help me understand this. Mine own laptop charges but can’t turn on. To test by removing the power button. Should I use the tweezer to touch the wire and one end of the tweezer to ground?
Very good video realy . Can you send me solution for my elitebook 2560p . No sound. All drivers is ok i dwnload from hp suport . The softwar test showen good . But no sound .the botton led always on orange color. I need the schematique of cart mere .can i upgrad to i7 ? and what is the best prosessor can i use ? Thank you
Did u discover the answer? I have the same problem with another laptop but i dont know where on the other mosfet i should do the soldering. Thank you very much.
Hi Sorin, what was you voltage when using the dump power supply? and what kind of dump power supply you are using? sorry if im asking stupid question. I'm a beginner just starting to learn things. thanks
this is why i subscribed - there are no fancy intro, intermissions, summaries at the start of the video, just a dude slowly marching forward towards solution( and having some fun with sparks)
I love the simplcity of this guy repairs, no expensive oscilloscopes,no big workbenchs,just patience ,rational thinking...soldering iron and a strip of wire. :-) . Rispect.
waiting for the sledgehammer and cussing in Russian
Sorry, Romanian
@@marksilva309 I thought he is from Armenia.
instablaster.
sorin is very happy he does not have to replace the mosfet (the board is blown ooo haaaa)😂😂😂😂
we love you teacher keep up the good work💯💯
I don't have anything to say I only need to thank you for teaching us right now I have something to do because of you thank you again 👌👌👌
Excellent. Of course why not. Every time you explain everything. so it is very very helpful for learn how to service hardware of laptop. God bless you. Thank you very much.
I did my first laptop motherboard fix thank's to 15 minutes worth of your videos. It's quite simple once you get grasp of what you need to find. I plugged 19V on the power connector and got 19V on the mains so the connector and PSU were fine. Next I measured what voltages I get across the PCB, turns out I get 0,8V here and there, but not 5V on USB so that means that power isn't getting pretty from the mains. So I go and check the first 2 mosfets that 19V goes to and 19V didn't get past the first mosfet. I took it off and used a jumper wire and the whole laptop woke up.
It's amazing how simple issue can cause the whole laptop to not function. I'm pretty confident now that I can take on even tougher problems if the situation needs it, hence if the laptop is worth saving.
Even on this video I get the idea what you are trying to do and while experience helps, I assumed you would just go trough each component until you hit nothing and start taking suspicious parts out. I don't still have the hot air station required for this job to be easy, but I most certainly are gonna buy one now.
Thank's and keep it going!
It would be your first fail if you use jump wire on upper mosfet and in that time charger IC doesn't work properly. In this case all 19V would get through the whole motherboard...
@@london4983 and he will loose also charging the battery
@@london4983 Totally wrong, it seems you do not understand the principals of voltage rails in a notebook. The shorted MOSFET is not an UPPER MOSFET because its not part of a switching buck converter where upper and lower MOSFETS exist.
just try to find the fault next time, so checking why there is no voltage to open the mosfet. i had the same as you with the first mosfet :)
@@VincentTubed I also same problem here ,checking the power jack low voltage 0.44v only, please help bros
Who else is watching the amazing sorin at 1am fix motherboards..
Watching next one now :)
@@garysnell47 yo xd 1:21 a.m
from egypt you are great man
Watch your videos every day and compare with other TH-cam videos, yours are the best. Your troubshooting steps are clear and easy to follow.
You dont have to compare, everyone its special on his own way :)
@@electronicsrepairschool 🌹💚
@@electronicsrepairschool hi Sorin m your big fun till date.. i have Elitebook 2560p pretty much the same motherboard but now both first and second mosfet are blown completely.. and now i don`t know from the fuse where to loop the 19v..if you get this please help. thanks
MR.SORIN,I AM VERY HAPPY ABOUT YOUR WORK,IT REALLY.REALLY HELPS ME,THANKS ALOT.
BUT PLEASE CAN YOU MAKE A VIDEO OF HOW TO REPAIR ANY 19V LAPTOP CHARGER WITHOUT SCHEMATIC??
THANKS ALOT AGAIN FOR YOUR GREAT JOB.
i really enjoyed the video keep it come. from Philippines.
Thank you sir,your videos are excellent, am a great fan.
May God bless u i started watching ur videos just last week n every night i do all night everyday to learn repair from u am so addicted to ur channel now
Am learning not only circuit board maintenance but also how to treat customers. thank you for every thing that you did am always happy the method that you teaching us!
Man your amazing I learned a lot of things from you. Please don't stop making content that will strengthen our IT technical skills. Thank You the content that you uploaded are not taught in schools but by your time crafted experience.
I've watched so many of your videos and what I love about you, is that no matter the fault, you are always in complete control.
you are great Sorin...God Bless You...
very nice troubleshooting sir.
or Sorin.. I like that watch you are wearing here.. better than your new one.. This is another good one.. I learn so many things watching you.. I binge watch your videos sometimes.. 4 or 5 one right after another.. so good.. thanks my friend for taking the time to teach this old man!
This is amazing brother I have no electronics background. Thank you for doing these videos
I know I m late, but I just want to say, U are amazing Sorin! I just cant stop watching your videos.
we have great teacher like you on youtube and we don't need to worry about our IT institution.
Never stop making these videos. It really helps.
Learning from Kenya
Wow nice work watching your videos is one of my biggest investment ..am one of your students simplicity in your explainations and clearity .thank you Sorin
I enjoy watching your analysis and patience sharing your methodology with us. it's always replace with most techs. But why the failure in the first place. I can't ever give up attempting to repair rather than replace. work on car computers/controllers. Circuit boards. But only after they've been replaced for upwards of $1,000.00. I repair and then they're passed to the next unsuspecting customer. I've gained plenty of information and techniques from you. i will add the motherboards and configurations of HP laptops are ridiculous. Thank you again.
ability to fix electronics without schematics - that's very instructive. Wonderful video. Thank you
Very impressive, Sorin! Power supplies are a pain and it is rarely a solid state device that is the initial cause of failure; capacitors are always suspect.
I often used that technique of checking the temperature of components. The difference was usually so small that I would check them on my upper lip until the day that a component was so hot that it caused a painful blister that I remember to this day!
you're so professional man i love your videos i will download them to watch them offline they will be my encyclopedia thank you so much sir sorin
Brilliant diagnose, as allways. It is amazing. We enjoy watching your videos more than the best cinema film. Thank you!
I have 3 of these boards to fix!, all with same symptom, not like this tho, when clicking power button, it flashes white 9~ times (matches no codes i found), the orange charge light can come on, but flashes constantly.
I am so eager to fix, happy i found this video, it will help a little.
your videos are very educational and easily to understand.
the best repair for youtube ever.bravo sorin
Messed up design? these elitebooks are the best ones out there. Mechanically exceptionally solid. I have a 2012 2560p with a sandy bridge i7 that I bought used in 2014. Best EUR 200 ever spent. Still a daily driver.
Very inspired by you mr Soren, i want to be a pro of computer hardware repair like. It is very amazing. God bless u always, i am actually new to this channel but i have been addicted to follow ur videos.
I like when you get the power supply to find the short. You show me a way to find short circuits quickly.. good!
Just get a Thermal imager camera. You'll find shorts instantly.
(How in this glorious earth does he remember all the nicks and knacks he takes off) amazing
Im only watching your videos every day this is PROPER i will keep watching you have a good sense of humor in the workplace KEEP IT UP thanks for all the videos i think i have watched some of them more than 3 times. I see you speaking to someone while making videos is there a discord or are you just realizing we cannot see or hear sometimes ?
What a great teacher this one is the tough one which pin u short on mosfet and is it not a problem not having 2 mosfets
Brilliant YET AGAIN and Love the Pie Chart !
Dear Sir,
You are really Genius. Thanks u r really inspiring lots of youngsters like me. Thanks from India
Realy, it's another amazing tutorial from Mr. Soren, thank you a lot. This is a complex issue.
Wow bro you make this look so easily I hope we can be great like you one day
thanks for sharing, great job, i had the same problem with an identical laptop, luckily mosfet was not completely destroyed, it was still readable, it is an AON7401
My favorite tech wins again! Great video!
your videos sir are educative and simple to understand. thank you
That was amazing . I learn so much from your videos
Thank you very much for taking the time to teach.
nice video Sorin. Love watching your fault finding techniques. Learning a lot!
Really nice. Interesting. I am the big fan of you. You are doing great work. Appreciated. Greetings from India.
Hi sir, do you have videos on how to test capacitor, MOSFETs and power supply using multimeter? Thanks in advance sir! Appreciate all your videos!
I was waiting for the petrol, but this time no petrol.
Always learning. Thanks.
Patience, will be a second video about the theory of this job
19:16 use of petrol ! ;)
Great videos. Thanks for your teaching. To start try fix motherboards in short like the one in this video, which linear power supply i have to choose? Sorry for my english.
Your such a very good troubleshooter....very nice thing to watch...interesting...
Great Work Sir
Your Videos are Best and very informative on TH-cam
Thanks
So simpel you make computer with only multi meter and power supply..thats super..have good day..and thanks i like your video every time some new problem and easy fix..
when you smoke your vape you're like sherlock holmes solving laptop homicides.
😂😂
I keep seeing you use a fluid to help find dead components when applying voltage. You call it "Petrol", but that doesn't translate clearly for me - obviously this couldn't be gasoline. What is the American equivelant? I've been trying to bring my motherboard back to life for a week. I've fixed a short, and now I can plug in my charger without it shorting out. However, I still cannot power on my laptop and I'm trying to identify the next fault. Your videos make learning an adventure, and I love it! Thank you for everything. Keep doing what you do!
zippo petrol or you can use alcohol
@@electronicsrepairschool I did not expect such a quick reply! It's like being contacted by a celebrity - I feel blessed that you reached out personally. Thank, you! I will let you know what the outcome is (if any). The original short that was disabling my charger was my second MOSFET. Now I need to find out what is grounding out the rest of the motherboard. I'm hoping with your excellent guidance that I will be able to get life breathing back into this machine.
@@electronicsrepairschool So, my motherboard is pretty soggy now. I've drenched my motherboard in Zippo lighter fluid and I cannot find anything. Am I performing this test correctly? I have applied 19v past the 2nd MOSFET because this is where I stopped reading 19v from the charger. I have my ground connected to one of the various screw holes. I've tested a multitude of the double MOSFETs on my motherboard and they are all reading ground on both sides. I've removed one of them and I'm still reading ground on the solder points on both sides - so this rules out the MOSFET, yes? I'm assuming something is bridging the ground and power circuit somewhere and that is why I'm reading ground on both sides? I just feel lost now. Any guidance you could supply would be greatly appreciated. I was hoping that this video would point me in the right direction, but now I'm just at a stand still and do not know how to troubleshoot this next.
Thank you!
@@electronicsrepairschool Alright. After a little bit of disassembly, I found the only component to be getting hot (at 5 AMPS) was the integral processor. So... does this mean my processor is toast? I've watched a bunch of your videos and I do not believe I've seen anything come up regarding processors. Thanks.
If you have any experience with working on them, this is an Acer Aspire V17 VN7-792G. If you know any tips or tricks, please let me know or link me to any related videos. Thanks!
Congratulations! You are excellent in what you do! By the way, what's the name of the liquid transparent you use before weld? Also, how much temperature you use in your soldering iron and the other of air (I believe)? You desolder the components very quickly! Thank you
Flux
Your channel is one of my favorites
Thank you Sir for all these videos and knowledge you have shairing with us , but i wanna ask you if you are the only repairer in that shop or there are others who help you like diana?
I am learning repair with your video. thank you!!
Checks:
Power indicator light is on, which means 19v, 3.3v is present.
Press the power button, not turning on.
Replug bios battery to see if the laptop is frozen.
Power button has 3.3v, press to pull to 0v, indicates power button is working.
Concluded that all power supply is good but the laptop is not turn on.
Suspect super io chip MC KBC1126 is mulfunctional
After taking apart, found blown first mosfet near charging port
Procedures:
Clean out the mosfet, pad is ripped, so bridge from next component to second mosfet
After that check with DC power, found charging port + is taking 2.4A, indicates a short to ground.
On the second mosfet, using the DC power and found there's something takingpower.
Solder a wire to the soldering pad on the second mosfet, and found there's power supply group getting hot.
Take off a mosfet, check shortage on the capacitor, still short, put this one back; take the second one off, still short, put this one back as well.
Take off the capacitor near them, found one of them is broken.
Put everything back. Connect the power and check if 19v is presenting; YES
Connect lcd and everything, got a picture, repair is done.
CONCLUSION:
THIS IS BASIC, YOU DON'T NEED SCHEMATIC FOR THAT! --- Sorin
赵晓明 help me, I have a Acer laptop that works but will not charge. The AC adapter light goes off when I plug into laptop. I get no 19v at dc plug on mobo, so I have a 19v to ground short right at the beginning of the circuit. I’m not sure which component to test, how do I test for bad mosfet?
Hi all your videos I have watched thus far, are Great and very helpful. I have my HP 6730b Laptop. I got it form my friend as he told me it was working fine until one day he decided to switch it on and it was dead. At first, he suspected the Charger and went to buy a new one, then he tested the New Charger still it was dead.
Please assist me.
Always very informative videos. why don't you get a thermal camera? I believe would make finding something hot very quickly...
Sub guys, he deserves 10 mil
Hi, it was very very good and useful tutorial video
great work! and amazing how those cap. are taking 5A without smoking. Can we use multimeter temp. detection to track the heated parts? cheers!
Yes, that cap its unique, probably absolute 0 ohms, thats why wasn't getting hot.
we need to buy Sorin an infrared goggles and a darkroom to help fix these tough board shorts
good evening sir, i have been following your video and tutorials.. they have been very helpful. sir i need help with a old model hp laptop. i make a mistake of plugging it with a wrong polarity charger.. so the pc no longer charges but it still works on battery.. pls sir do have any clue on the possible fix
Excellent patience to find problem.
Thank you so much. Can i know your name please
I fix my same HP 2570P Laptop.
nice video....very easy to follow......what about a laptop working fine on AC,shows the battery, charges the battery but once you unplug the charger, it goes off......can't power up from battery too..Same issue with new batteries..any ideas
on the battery connector, supply the voltage with a power supply and see if its working. But, mostlikely is the battery
Always a pleasure ! better than Hollywood :)
How can I find a short when it’s very short.? Very funny! But it’s taking a long time. Good job.
GREAT WORK! I have a question. Can you inject power with a 3v 1Amp power supply?
Great job. But i have a question. At the beginning of the video you said if you have light on the motherboard it means you have 19 volts and 3.3 volt power rails. And you were relating the problem to the startup chip. Now my question is how can we have 19 volts power rail if we have that blown up mosfet?
Mosfet was blown but probably the 19v goes through it
The main problem was the shorted cap
good job, thank you for the lesson
h aha ..this was an amazing fix....seriously guys...i nearly had a heart attack when he started tearing away the track on the mother board..i thought...YOU CANNOT BE BLOODY SERIOUS...then i thought ..well how you gonna fix that big hole now..and he bypassed the mosfet ..i thought ..surely that wont work ....and it did ..then when he started ripping multiple chips off the board.....man... this was like a bond movie to me...this guy man....this guy is crazy electronics guy..and can fix ANYTHING.
YOU KNOW WHY HE CAN FIX ANYTHING.
because he is romanian, and in romania you HAVE TO FIX IT OR SOMEONE ELSE WILL..SAME IN africa or india...not like in england where people just replace stuff or throw million pound laptop in bin....them romanians man...they fix and build anything......they can do anything. the mechanics there can hook up a volkswagen engine to a ford gearbox. all inside a citroen body..no messing.
rundown thomas: Mr Sorin certainly demonstrates how to do gorilla laptop repairs, and WIN. He omits parts, removes & reinstalls chips with NO flux nor cleanup nor fresh solder, and fights a soldering iron tip that looks 100 years old... WOW. He would save a lot of time with a FLIR camera, as he spends a lot of time hunting hot spots. I should be appalled, but I'm truly facinated.
These are very good laptops. i have a HP 8470P it been through heck and back one of the strongest laptop i ever owned. I would have had that apart in 20 mins. If u must watch a youtube video. HP design these laptop like this because they are built to last the motherboard is protected from shock and water.
Thank you very much, Professor Sorin.
Thanks for your videos. I have a question. If i should to replace a mosfet how can i find in this case the suitable one?
That was the good one, great repair! :)
thanks for the videos. I have learned quite a lot just by watching your videos.
I have a Samsung RF710 laptop which has two hard drives bays, one is working but the second one the motherboard is not detecting. Do you have any idea how I can fix that ?
Dear friend your video help me understand this. Mine own laptop charges but can’t turn on. To test by removing the power button. Should I use the tweezer to touch the wire and one end of the tweezer to ground?
Sorin loves his 19v lines....he does....;)
I'm a big fan of you. Greetings from Kentucky. You are awesome, thank you for your videos.
Thank you
esti uimitor....felicitari,,,
You are Amazing sorin thanks alot.
soren: schematics wouldn't have done any more to help you on this fix anyway. good job.
WOW! This is a great video! Thanks for making this video.
Excellent job
Very good video realy . Can you send me solution for my elitebook 2560p . No sound. All drivers is ok i dwnload from hp suport . The softwar test showen good . But no sound .the botton led always on orange color. I need the schematique of cart mere .can i upgrad to i7 ? and what is the best prosessor can i use ?
Thank you
Dir sir, very professional, way to go!!! thank you!
Did you connect the cable to the drain leg of the mosfet?
Did u discover the answer? I have the same problem with another laptop but i dont know where on the other mosfet i should do the soldering. Thank you very much.
Very very good repairing
Hi Sorin, what was you voltage when using the dump power supply? and what kind of dump power supply you are using? sorry if im asking stupid question. I'm a beginner just starting to learn things.
thanks
Good job, thank you for the lesson!!!
very very very good I always see your video sir...........
Thanks
You are a magician
nice repair sir....thank you...
Open mind for a different view. Learn from many as much possible. You can still learn even if you thought you knew! The perpetual learning.
"Just admit it...it's like Christmas...see the sparks?" Love your teaching method.