Great video, Sorin. I know it was painful and frustrating, but it was good to see a live example of an ugly fix. Despite all your best efforts to save the usb/sd card reader board, it still would not work with it installed. So improvise, like you did. Strip it out and move on. The customer will understand and will gladly accept a working machine over a dead one. You definitely deserve a break after this one.
Thank you for sharing. Anybody can have a troublesome repair every now and then. You don't hide it, most people don't show when things go wrong. Great video! Great example on not panic when things go wrong.
@@chrisventer8494 why wouldn't he charge him? Are you mad ? Oh let me guess you are disappointed right ? Client can have dead laptop or working without one USB and SD card reader. What do you think client will choose ? Sorin spent 2 hours on that laptop to give client something and still be able to make some money. Go to work for charity with this attitude. I bet you would not be able to do anything with this laptop , people like you just come to judge others.
Think its between client and the repairing tech. if some part get disabled as long as client agree,maybe he doesnt use disabled parts anyways,phone client and ask what he wants.
Your channel came up after another TH-cam I was watching. I like you a lot for verbalizing your thought process as you work on it I started working on computers when punching and reading 80 card column cards was considered software. The last chip I changed was on a 7 layer board. We cut the legs off the old chip and soldered new chip to the legs. We called it the " dead bug" method.. In my career I've beern many things including Senior Systems Engineer but I still like getting my hands dirty.
Wow - watching this painful process made me never want to try repair a motherboard again...I guess I should thank you for that. I just don't have half the patience you have and with only 5% of the knowledge I'm better off..cheers
Thanks for the video! I like watching real life troubleshooting. I have to get caught up on your videos. I wouldn’t change a thing about your videos. It’s very honest and real.
electronics free online course. Not certain about the points made but ,if anyone else wants to discover introduction to electronics courses try Letza Easy Electronics Lessons (Have a quick look on google cant remember the place now ) ? Ive heard some super things about it and my buddy got cool results with it.
That one really did give you the run around. Something nasty happened at the usb board and killed the ITE chip, that overloaded the buck converter so it gained a hole lol. The mix up was caused by the charger being absent, not your fault sorin
Thank you very much for your sharing. You remind me myself when I come up against these situations. I laughed too much with the smokes and your surprising expression! "What is doing!!" God bless you my friend!Thank you very much for your constribution to knowledge. You are incomparable!
i appreciate your work, but before replacing the ic you have to figure out what causes its explosion, otherwise if you just replace it it will re-explode, you necessary have to undrestand the root of problem before just plug the charger and check if it works..usually you rock but you seems tooo tired, take holidays and come back with more energy to do god job dude, we all appreciate your knowledge sharing. Cheers !
Thank you for all your video's ! What I do when there is something like this (high amps / heat) is to pour some 99% alcohol on the area and see where it evaporates 1st. I use a syringe or glass dripper to dispense the alcohol in the desired location.
JIG FFS ! 'comb' over end pins connected by 'lockable swivel' to 'board sucker mount', which correctly positions and restricts their motion in the X axis, plus 'lockable chip center sucker- LCCS' for total movement prevention. Position 'adjacent side' 'opposite end pins' in the Y axis prior to LCCS lock. Solder end pins of 3 sides before 'comb swing clear' and application of hot air. DONT bother, read on. Haha.
I have just recently found your channel and I love it, nothing like watching real live repairs and I'm learning heaps from you. Where did you get your endless supply of donor boards from?
Tuomo Moller I'm not sure but ,if anyone else needs to find out about repair your computer try Saankramer Electronic Magazine System (should be on google have a look ) ? Ive heard some interesting things about it and my friend got amazing success with it.
Wow ! I am kind of disappointed how can the board work when so many components were removed and not replaced. If the board could not be fixed, I think it should be replaced and the fan not rewired unless the customer does not care about the board. Sorin you are a very good teacher and I really believe you could have done better.
Hi Sorin, great video. It seems someone plugged a USB killer into this laptop and destroyed the IC's. The USB port on the separate board was an oversight, more than likely still at fault as its where the damage must have originated. Keep it up. *edit: A link for further reading en.wikipedia.org/wiki/USB_Killer
Good job Sorin.However,when you take some components which are for protection and don't replace them,the next time something bad happens it is more probable to damage an important component which costs much more than a cap!
Należy zawsze czyścić pola lutownicze przed ustawieniem nowego EC. W przeciwnym razie resztki cyny pozostające po wylutowaniu uniemożliwiają prawidłowe wypozycjonowanie nowego elementu. ponowne wlutowywanie lepiej jest robić grotem typu mini fala. Oszczędzamy w ten sposób czas i zyskujemy pewność prawidłowych połączeń.
Hi great video, I noticed what caused the smoke at the bottom right of the board. When you were moving the board towards you I noticed moving the board towards you the board was shorting out with the copper roll of tape.Hope this helps you.
Oh my god man I love you what many boards you have man I want to give you an advice work on a soft thing better for the laptops.and in all that boards take out the fans and clean them put them alone and CPU and everything like that it will be very easy to get any chip any fan any speaker any plot charger you want it will help you very much in working
man that was a tricky one ! think i would have given up ! got it up and running tho...............as for the 19v thing.............hey we all been there :)
In this video you were using Amtec Flux to disolder and solder 1225 ic chip, did you run out of home made liquid Flux or you thought it's better to use Amtec flux in this case? .... Keep up the good work Sorin, you are A1... IRREPLACEABLE MASTER
This method can only cause more damage - a thermal imaging camera is essential when starting up and first measuring whether there are dry short circuits without voltage.
in 1:15:11 you should not solder those pin together Because there is one pin is Gnd & other VIN (5V) & Other one is Enable pin ... in Future you have to Replace Circuit this is Example of IC (BD82047FVJ) Active Low
i have a general question. Back in the day, things ran on 3, 6, 9, 12 or 24 volts. I assume as its multiples of either 1.5v dry cells or common accumulators 12/24v? so why do manufacturers choose 19volts to power most laptops?
I could be mistaken but after you had finished reflowing the first chip it looked, to me anyway, that you had bridged 2 or three contacts on the upper left (as you view the video). I could just as easily be wrong but the more I look at it the more it looks like it is bridged. You may well have spotted that off video and rectified it as we did not get another view of that chip in the remainder of the video but could that have anything to do with your board component failures? Personally I don't reflow chips using the old solder; I remove it all with desoldering braid and resolder using solder paste. It may seem longer but the trouble you had in this case it may well have been worthwhile and I consider that method a 'permanent' repair as opposed to reflowing possibly being short term in many cases.
Great video, Sorin. I know it was painful and frustrating, but it was good to see a live example of an ugly fix. Despite all your best efforts to save the usb/sd card reader board, it still would not work with it installed. So improvise, like you did. Strip it out and move on. The customer will understand and will gladly accept a working machine over a dead one. You definitely deserve a break after this one.
Your abulity to keep working on such a mess is commendable. Thank you sharing this video with us. I learned a lot.
Thank you for sharing. Anybody can have a troublesome repair every now and then. You don't hide it, most people don't show when things go wrong.
Great video!
Great example on not panic when things go wrong.
I am disappointed. You did not fix then problem but only disabled part of the system and provided a workaround. I hope you did not charge the client.
@@chrisventer8494 why wouldn't he charge him? Are you mad ? Oh let me guess you are disappointed right ? Client can have dead laptop or working without one USB and SD card reader. What do you think client will choose ? Sorin spent 2 hours on that laptop to give client something and still be able to make some money. Go to work for charity with this attitude. I bet you would not be able to do anything with this laptop , people like you just come to judge others.
How you know that most people hide if its hidden?
Think its between client and the repairing tech. if some part get disabled as long as client agree,maybe he doesnt use disabled parts anyways,phone client and ask what he wants.
😅
talk about fortitude wow, thats mental changing those 2 massive chips, thats amaing repair
Your channel came up after another TH-cam I was watching. I like you a lot for verbalizing your thought process as you work on it I started working on computers when punching and reading 80 card column cards was considered software. The last chip I changed was on a 7 layer board. We cut the legs off the old chip and soldered new chip to the legs. We called it the " dead bug" method.. In my career I've beern many things including Senior Systems Engineer but I still like getting my hands dirty.
Wow - watching this painful process made me never want to try repair a motherboard again...I guess I should thank you for that. I just don't have half the patience you have and with only 5% of the knowledge I'm better off..cheers
Thanks for the video! I like watching real life troubleshooting. I have to get caught up on your videos. I wouldn’t change a thing about your videos. It’s very honest and real.
Believe me Sorrin this one best video you have done ....
electronics free online course. Not certain about the points made but ,if anyone else wants to discover introduction to electronics courses try Letza Easy Electronics Lessons (Have a quick look on google cant remember the place now ) ? Ive heard some super things about it and my buddy got cool results with it.
I didn't have a chance to see it yet, just to hear your voice make me happy
thx
What a long working time !!! But you are done it very well. Thank you Mr. Sorin.
You've enlightened me with so much electronic knowledge, thank you sir
Our Sorin is such an honest and competent man.
Great job, i love to watch it from the beginning till the end. hard work and patience is the key.
That one really did give you the run around.
Something nasty happened at the usb board and killed the ITE chip, that overloaded the buck converter so it gained a hole lol.
The mix up was caused by the charger being absent, not your fault sorin
Thank you very much for your sharing. You remind me myself when I come up against these situations. I laughed too much with the smokes and your surprising expression! "What is doing!!"
God bless you my friend!Thank you very much for your constribution to knowledge. You are incomparable!
i appreciate your work, but before replacing the ic you have to figure out what causes its explosion, otherwise if you just replace it it will re-explode, you necessary have to undrestand the root of problem before just plug the charger and check if it works..usually you rock but you seems tooo tired, take holidays and come back with more energy to do god job dude, we all appreciate your knowledge sharing. Cheers !
Its a treat to watch master working and getting success. great going Sir.
This is better than Hollywood thriller:) Good job Sorin!
Thank you for all your video's !
What I do when there is something like this (high amps / heat) is to pour some 99% alcohol on the area and see where it evaporates 1st. I use a syringe or glass dripper to dispense the alcohol in the desired location.
Really? He's been doing that for ages.
@@thingshappen9199 new to the channel so have yet to see it.
If you were to be a chinese, i'll call you MASTER because that simply who you are. You make it so easy and explicit enough.
I’m holding my breath while I’m looking into the video
What a strange faults, you well done big thumb up
JIG FFS ! 'comb' over end pins connected by 'lockable swivel' to 'board sucker mount', which correctly positions and restricts their motion in the X axis, plus 'lockable chip center sucker- LCCS' for total movement prevention. Position 'adjacent side' 'opposite end pins' in the Y axis
prior to LCCS lock. Solder end pins of 3 sides before 'comb swing clear' and application of hot air. DONT bother, read on. Haha.
I have just recently found your channel and I love it, nothing like watching real live repairs and I'm learning heaps from you. Where did you get your endless supply of donor boards from?
I guess you cant do them all :))))
@@jamich1 dont bet money on it
Wow amazing video so much to learn from it.
Thx again
Really properly hard job :) Good work. Thank you for the video.
Tuomo Moller I'm not sure but ,if anyone else needs to find out about repair your computer try Saankramer Electronic Magazine System (should be on google have a look ) ? Ive heard some interesting things about it and my friend got amazing success with it.
We need schematics...this is great work on the motherboard Mr. Sorin.
Love watching your repair videos. Just great.
Bravo Sorin, the battery screw is staring you right in your face and you are trying to brake the battery to take it out without removing the screw.LOL
Wow ! I am kind of disappointed how can the board work when so many components were removed and not replaced. If the board could not be fixed, I think it should be replaced and the fan not rewired unless the customer does not care about the board. Sorin you are a very good teacher and I really believe you could have done better.
This is dramatic one best video you have done ...
I appreciate the great work you are doing
Hi Sorin, great video. It seems someone plugged a USB killer into this laptop and destroyed the IC's. The USB port on the separate board was an oversight, more than likely still at fault as its where the damage must have originated. Keep it up.
*edit: A link for further reading
en.wikipedia.org/wiki/USB_Killer
Good job Sorin.However,when you take some components which are for protection and don't replace them,the next time something bad happens it is more probable to damage an important component which costs much more than a cap!
Sorin , you are still the best: It’s lunch time,!!!
Należy zawsze czyścić pola lutownicze przed ustawieniem nowego EC. W przeciwnym razie resztki cyny pozostające po wylutowaniu uniemożliwiają prawidłowe wypozycjonowanie nowego elementu. ponowne wlutowywanie lepiej jest robić grotem typu mini fala. Oszczędzamy w ten sposób czas i zyskujemy pewność prawidłowych połączeń.
Thanks u Master , I have fixed many laptop because of you, so thanks you so Much.
with your school i learned and fixed a lot thank you
Excellent movie Just like this identify your method to search for and find the source of the problem
Hi great video, I noticed what caused the smoke at the bottom right of the board. When you were moving the board towards you I noticed moving the board towards you the board was shorting out with the copper roll of tape.Hope this helps you.
Oh my god man I love you what many boards you have man I want to give you an advice work on a soft thing better for the laptops.and in all that boards take out the fans and clean them put them alone and CPU and everything like that it will be very easy to get any chip any fan any speaker any plot charger you want it will help you very much in working
man that was a tricky one ! think i would have given up ! got it up and running tho...............as for the 19v thing.............hey we all been there :)
when things get complicated should be the headline. I haven't seen so many mistakes before on a laptop
OK, Thanks for Video Repair Sorin!
In this video you were using Amtec Flux to disolder and solder 1225 ic chip, did you run out of home made liquid Flux or you thought it's better to use Amtec flux in this case? .... Keep up the good work Sorin, you are A1... IRREPLACEABLE MASTER
You are a legend
i admire your patients sir, can you help me with my laptop the power light inter but, just a second and turn off , and the graphic chips hot...
It was like watching thrilling movie when you keep on increasing the amps. Anyway good video
Dammit, I can't stop watching your videos, the other day I even dreamed of working for you xD
:)))))))
I like your teachings i wish i can learn a lot from you
This method can only cause more damage - a thermal imaging camera is essential when starting up and first measuring whether there are dry short circuits without voltage.
I LOVE VERY THIS FILM VERY NICELY, thank you FOR the WATCH!
It's just great.
I love every bit of the repair
48:56, You can solder the chip with soldering iron, but only 2-3 or 4 pins to fix the chip in position. Then you can use hot air gun.
Best ever school repair episodio
You should get a thermal infrared camera, easy to find the hotspots. I use an Flir One for my mobile.
hey teacher, im a big fan of your work :) where is ur store located ? :) and big thx for your sharing (from tunisia)
This man is a magician.
PATIENCE OF A SAINT
Good morning Sorin
Sir your great. And your tube is so organised ....good job many😊 thanks. ...
Sorin , I appreciate your videos.. thanx
Excellent Sorin keep them coming
Good work Sorin!
Synopsis: old man yells at ITE chip for twelve minutes
Damn heavy repair! Great work!
It's that lead free crap solder, it's shit to rework. Well done
VERY GOOD LESSON
i think that you are sending current to the ground side of a capacitor. thats why it draws different current on both sides.
Whit chips like that I use to solder the corner legs by the iron, and the rest by hot air
Thank you for the video.
could you give us some ideals on how these problems happen, are they made cheap, do people miss handle them, old age, thank you for your input. John
Am doing great just watching u thank you sir
Sir Vreg3 is 3.3 ldo or aux volt for SIO power before on, if this line is sort means either caps are sort to ground or sio sort.
nice job sir..
What is that fluid / pasta that he's pouring over those chips ? @14:24
in 1:15:11 you should not solder those pin together Because there is one pin is Gnd & other VIN (5V) & Other one is Enable pin ... in Future you have to Replace Circuit this is Example of IC (BD82047FVJ) Active Low
Did your second ITE chip come from a lenovo spare board or a pre burned bootloader for lenovo, new chip from ebay?
thanks for your video , a very practical.
Love your perseverance!!! Hats off to you :-)
1. Easier to replace the card reader board. 2. The short could be under the connector or the card reader itself?
hello sir very nice and long work thanks a lot
bad cable, shorted pins on cable or something metal stuck in sd card reader slot!
This is exactly what I was thinking , shorted pins on the cable.
I think this too something is in short there
many thanks , sir.
Maby sd card slot pins in short and bios swich get some resistants
You should solder 1 or 2 pin each side with soldering iron then use hot air would save your time.😀 good video anyway.
Why not line up the chip and tack on just the corner pins first with the iron and then come in with the hot air., just a suggestion.
That’s what I call kamikaze diagnostics.
Hi, please check chip track you changed , for short.
53:00 need clean IC pins, more flux, setting few pins on side 1 and 3 with iron, then fix with hot air gun sides 2/4/1/3 in that order
sorin what is the petro you use to see which component is getting hot thanks
morning sir watching from ksa
Always check damage usb ports
would you use inferred to see were the board heats up, or over heats, when looking for shorts?
Is the ribon cable reversed
i have a general question. Back in the day, things ran on 3, 6, 9, 12 or 24 volts. I assume as its multiples of either 1.5v dry cells or common accumulators 12/24v? so why do manufacturers choose 19volts to power most laptops?
Electricity is not just Volts but Amperes too. Looking at a power supply that says 6V/12A may seem awkward ;)
I would say voltage drop along the path
Hello this is a good vidéo to learn many things
check how much voltage is consuming that small board and use the power source with hight curretn
I could be mistaken but after you had finished reflowing the first chip it looked, to me anyway, that you had bridged 2 or three contacts on the upper left (as you view the video). I could just as easily be wrong but the more I look at it the more it looks like it is bridged. You may well have spotted that off video and rectified it as we did not get another view of that chip in the remainder of the video but could that have anything to do with your board component failures? Personally I don't reflow chips using the old solder; I remove it all with desoldering braid and resolder using solder paste. It may seem longer but the trouble you had in this case it may well have been worthwhile and I consider that method a 'permanent' repair as opposed to reflowing possibly being short term in many cases.
Steven Booth
I did see it also
This laptop describes my life :)
Hahaaaaa
🤣
maybe you need Thermal camera to trace short circuits its will show you degrees off elements
have big troubleshooting so very nice