Spare yourself anymore frustration on the matter, We already know what the seller will say. Just leave appropriate feedback with a description of the product in the comment so other buyers see your feedback and know what item not to buy. I do have to say I'm surprised by this though; I have not so far had any issues with any chips I suspected was fake. I have been lucky.
Thank You for showing us exactly what I would have done, questioned myself. You took the time to solder the original chip back into the board JUST to show US that you/we didnt do anything wrong. Thank you for that!
I run into fakes a lot as well in automotive ecu repairs. Since a lot of the chips are masked or custom made it can be damn near impossible to find anything compatible sometimes. I have a few rare ones that I have tried over and over (still try once in awhile) hoping to get a good batch but always just a waste of effort.
I buy from aliexpress, I have never come across a fake chip. I order the ones with many 5 star reviews. However, it takes forever to get (aproxx 1 month to where I live from China, but they have a warehouse in UK). Also, I don't know how much you pay for these, but I rarely ever exceed 3 pounds.
Aliexpress is full of fake sellers, even with 5star/5year stats. Looks like they cheating with rating sometimes. Need been rly carefull with this china store
@@gizmorepairs the last ec chip I ordered was from "Shenzen Hong Ming Electronics co., LTD". Depends on what chip I need and which seller has it. Generally I go by reviews as I mentioned. However, an AXP PMIC arrived today and I suspect it being fake. All though I don't get why anyone would bother faking a chip this cheap (0.76€ incl. Shipping). Fake chips are pure evil, I just can't imagine in what belief are the people making it. 🤮
I'm not doing regular repairs, just for hoby but I fully understand you. I needed past 6 months twice and I'm happy I ordered once 5x and second time 10x chips and few of them was shorted straight from package, just realised that after many ours spending to try resoove strange fault on board
I recently bought a broken asus monitor for 30euro. Nothing special, is a VG258, it's 1080p and have hdmi and dp connections. It was working but no backlight so i thought something with leds or the power circuit. It was the main chip! It shorted in the backlight control part. I initially bodged a bypass to send the blon signal when the screen get powered but it fully died after a couple of days. I dind't find the chip anywhere except in a chinese site never heard before. After payment a customer agent contacted me to tell that the chip actually was used and I could cancel the order. Very honest i can say. I didn't have anywhere else to get the chip so i got it sent to me. The chip was good and it's over a month i'm using this monitor.
Here in Canada I gave up on eBay in general years ago. The service is no longer cost effective with most sellers using eBay shipping plans which are seller centric and anything but buyer friendly. Everything is getting taxed and additional fees lumped on to the purchase price at the border.
Same thing for Brazil (probably, even worse shipping & tax rates than Canada). eBay is the last resource, only for parts not available on AliExpress or other international websites.
sir, i have a lenovo g50 80 laptop having some strange issue the laptop works fine but when i plug charger in if you shake the charging pin while its plugges in it will shut off instantly, but when the charger is plugged in and not turned on it wont shut off i just want to know what the problem can be
good morning MRs Soren. i'm professional too and i have an eleitebook 840 here on working bench, more or less same board ,same SuperIO, and it had a cpu mosfet shorted (SIC631) , i replaced ,but probably cpu dies with 19v on it before i change the ic. Now my board is doing exactly the same. Don't respond to power pins and the SuperIO is consuming 0.014ma ,the only thing heating on termagraphic gun . BUT is not in short and heats normally ,like 30, 35 degrees. I checked the pin 3(power on pin)and ther is no direct connection to SuperIO , In fact i coudn't find it because there is no available skematic or boardview for this HP elitebooks ,and i can't find it on multimeter , is somewere on a transistor or something else far from the super IO ,so could that 2.2-2.4v normal on this board? we don´t know . Is the power good from the cpu making this SuperIO not starting? maybe... whithout sckematics it's dificult and we assume things that aren't true on this board.
I just found that power on pin is on q115 that is an transistor 2 cms above the power flex slot. so this 2.4v or 2.2 on my case boot the laptop,but for now no picture...just fan... Maybe the original superIO was good?
Thanks to a video i fall for less fake chips but i still fall for it sometimes. I always first inspect the marking and use some rubbing alcohol or some acetone to see if the marking gets removed, i also test resistance between the pins and also test to compare it to another chip to check the height bevause some people remove the original marking by sanding it away and ethcing new markings and that removes layers of the chip. But still tons of fake stuff i hate it, killed a few devices by using wrong chips.
You didn't check if new chip was already shorted BEFORE connected power. It's possible something else is wrong and chip got burned as soon as connecting powersupply. Original chip may just have failed differently
got shorted by what the 3.3 is there and not shorted if its shorted by something then its shorted by 3.3 to gnd which is not shorted then no both new chips is shorted from the factury
Wouldn't it be nice part of the Right to repair law, we could request the original EC chip from the manufacturer and they could sell them for repairs at a reasonable price.
Well then companies have to release their whole oem line of components and code and mfrs being like apple nowadays (soldering everything, no or not so many upgrades, tons of glue, locked components) it likely wont be fully fulfilled unless all governments on earth force every company to release code and component's. And when hackers can get acces to datasheets and code and chips they could find weaknesses and hack devices, basically it might be chaos if that happened but i am not totally sure
@sorin i'm waiting your videos it helps me alot for learning purpose. why u upload your video after 3 to 4 days, upload every possible videos which maybe helpful for anyone who wants to learn like me, and i am very appreciate your job, god bless you 😊 bubye
Missed you the last few days and first time I woke up early enough on Sunday for coffee with Sorin, I hope all is well my friend. Sorry you wasted so much time with dodgy eBay sellers. Welcome back.
Think you meant Sorin never checked the voltage of the start button after removing any of these EC chips. Perhaps he did but these videos are so edited down we have no way of knowing
@@ДимитърАндонов-ъ7е exactly, and other people reacting commenting without knowing and watching the full video. sorin is one of the best repair around the world.
@Electronics Repair School Hi Sergin, I watch and really enjoy your videos. I have a question: do you ever use oscilloscope? I would love to see at least one video when you use oscilloscope, not to show that you can use it, but because it makes your life easier. I hope you have some real use case 😉
ITE chips had revision numbers on the chips and most of the time, they are not compatible between each-other. Not sure about nuvoton chips, but my guess would be you bought wrong revision chips. Original chip was: NPCE586HA0MX AA2 Second chip was: NPCE586HA0MX AA0 (hard to see on video if it was AA0 or AA8) Third chip was: NPCE586HA0MX ZZ2 If i were you, would buy from ali revision AA2. Checked on ali and it was in stock and available.
@@BootedTech I came across several two or three versions for each chip in this case NPCE586HA0MX general model "ZZ2" a completely different model. The Chinese who writes on the site wants to hunt them all writes only NPCE586HA0MX or NPCE586HA0MX AA2/NPCE586HA0MX ZZ2 In such situations, if you manage to correspond with him, explain to him that I only want model X and not the one closest to him, he will send you
I have been getting alot of fake chips ebay amazon all fake. Its extremely frustrating. Makes me think the manufacturer makes the chip supplier flood the market with bad chips to prevent repairs
More than often it's not entirely the chip supplier's fault for that, but rather of some (too many) Chinese vendors who buy those knockoff chips from them and put a lot of effort into counterfeiting them, e.g. erasing the original markings and applying new ones, usually over a layer of black paint or dye. Those counterfeit chips are then sold (suspiciously) cheap to many independent eBay vendors, who didn't realize that until it's too late to send them back (if even possible, because of the specific customs regulations about counterfeit goods in most countries).
@@silvake yeah, and as a seller it's extremely difficult to find who to blame here. What if your customer is the one who shorted the circuit then complained? And if the chip is too niche there is no way to test it without proper equipment. Most of the time sellers have to trust the Chinese marketplace's ratings unless multiple customers complain about the same irregularities.
I was getting 😡 angry 😤 when I did see it again. Selling smoking chips. Three times soldered on place and did not work. I thanks the seller give us the name
Hi Sorin how are you? I think as subscribers we have to look for you a reliable PCH, CPU and I/O chip supplier. I will look into it and come back. I love your videos and I would be willing to learn how to replace big BGA chips
😎Please check a BIOS battery that outputs 3V and check if the HP battery is charging in your special test device or if it is locked. There are HP models especially without a charged 3V bios battery/or a locked battery. The computer does not turn on
Well, a short story from my own, i live in Mexico and my Thinkpad L570 one day decided to die, since there aren't (or i couldn't find one) any reliable repair shops I was forced to try and repair it on my own, all was fine (the power button was working, dc jack was working, mosfets were fine), the next thing I did was tearing doing everything and I noticed both FPC connectors of the mobo and the Rj45 board(I think they are called like that, they work like a "sandwich" with to connector one over the other to make the pins touch each other) of broken at the plastic portions, then I reassembled everything and just like that the laptop turned on, the ethernet port doesn't work, I guess there was a short there, the power button delivered 3V and mosfets worked properly or I think they did, I wanted to share my experience as a novice in this matter since this reminded me of that.
Sorin, nu la toate laptop-urile tensiunea pe butonul de pornire este de 3,3V , provine dintr-un rezistor pull-up si merge direct in SIO/EC. Am un hp probook 470 g4, butonul vine din sursa unui mosfet si are 2,4V, vezi schema la pagina 41.
Este editat video, transeul de la butonul de power duce direct la EC. Nu stiu ce sa zic la alte laptopopuri, dar nu am intalnit cu tensiune mai mica pe butonul de power de moment ce pullup resistorul este contectat la 3.3v
@@electronicsrepairschool Sorin which thermal camera is better, like a gun which you use in videos or for android phones, (which you put in android phone)?
@@electronicsrepairschool Te cred, eu doar am presupus ca este la fel ca la hp probook 470 g4, si pentru mine este primul laptop cu 2,4V pe buton si functioneaza asa.
Bought r842 tuner ic for tv from aliexpress. Im thinking dodgy part. Long story why i believe so, but ive ordered from another seller. As if a repair job isnt hard enough. Yet more hurdles.
Trickery around every corner with these vendors (Especially Ebay). This is why I buy broken laptops/electronics for little to nothing. The downside is storage space for all this stuff.
I agree with one exception, i think around 2017-2018 the business grade computers are vastly better, the elitebooks and zbooks, 8th gen and newer. they have self healing bios, spill proof keyboards, really easy to disassemble, OS recovery through bios from the internet. very robust
people like you and other people reacting, commenting without knowing and watching the full video. sorin is one of the best repair around the world. your opinion is basic to sorin.
@@HotIssueViralTrendingPinoy I did watch the entire video, suggest you get off that horse. It's a learning electronic fix channel so before you go jumping on people from their comments, give your head a wobble.
Hi Sorin, noted BOTH the IO chip and the one next to they glowed at same time on thermal camera, what is that chip. I got sniped by BS channel Sorin, Love your vids, the chip to right maybe at fault. Maybe remove the IO chip and test. Please Sorin check the caps where IO was when removed. I understand counter fit chips exist. Please revisit.
Sorin, love your videos, but just for the record - as you said "if you have a lot of faulty boards ... and just take the chip from there", otherwise it's essentially - gambling! there is exactly such seller not on eBay UK, but on eBay DE (Germany) - a company selling that exact chip (and many more) not new, but removed from a recycled working motherboard, i.e. guaranteed original and working. I've never used them and so I don't promote or recommend them in any way, but I'm just saying that there are maybe much better gambling options than buying from China or from eBay UK.
I don't recommend Ebay it is either dropshipping (like the guy buys from china and sell it back for more) or fake cheap chips from china sold expensive for fast shipping. There are some true sellers that sell used chips from used laptops long shipping but at least it's cheap and works.
Ebay has a lot of legit, decent vendors, of course. The scammers use them as camouflage. In theory, Ebay will assure customer satisfaction and enforce or provide returns/refunds when necessary. In practice, Ebay has become just as bad as Alibaba.
Dear Sorin, since you r doing repairing daily basis, why dont you make collaboration with a specific vendor which is believable, Northridge FIX does the same thing।।।।
I never use hot air to solder a QFP chip, they are very sensitive to heat as they have no heat dissipation to the board like QFN chips. I would have not given up, you had 2 heat sources (one hotter than the other), the fact the original chip did not get hot, is, because it was most likely totally burned, not shorted any more. Pretty sure if you left the new chip on it would eventually burn out too. My guess you have something shorted going into the I/O chip, which wouldn't show up on the original chip if it was totally burned out and there would be no current draw either. Recheck the the components that were also getting hot, you'll mostly likely find your fault along there, very doubtful you buy two faulty chips, unless you got from the same seller.
I was thinking the same. It match customer description that first it failed partially before dying completely. Two with exact same short looks a bit weird but possible if it's a design issue. What if that pin with hot resistor is welded somewhere with 0 ohms to ground. Or it's not a resistor. Or perhaps sending in current when it should not. Just guessing.
@@electronicsrepairschool ok.. actually i also having the same problem.. 2.4V on power button.. but EC_RST and PWRBTNOUT 3-0-3V all working fine.. the pronlem is that no SLP4 and SLP3.. how to know the EC need programming or not?
You have good proof for refund. Make sellers realise they are wasting their own time too.
Yes, never settle for what you get, if its wrong its wrong
Agreed.
Spare yourself anymore frustration on the matter, We already know what the seller will say. Just leave appropriate feedback with a description of the product in the comment so other buyers see your feedback and know what item not to buy. I do have to say I'm surprised by this though; I have not so far had any issues with any chips I suspected was fake. I have been lucky.
@@Al-kw5ii Which also waste of time, the seller will remove the product and re-list with fresh feedback product listing.
Thank You for showing us exactly what I would have done, questioned myself. You took the time to solder the original chip back into the board JUST to show US that you/we didnt do anything wrong. Thank you for that!
I run into fakes a lot as well in automotive ecu repairs. Since a lot of the chips are masked or custom made it can be damn near impossible to find anything compatible sometimes. I have a few rare ones that I have tried over and over (still try once in awhile) hoping to get a good batch but always just a waste of effort.
Thank you for sharing this video. Beside the repairing info, now it's clear to me that buying chips from ebay is a risk.
I buy from aliexpress, I have never come across a fake chip. I order the ones with many 5 star reviews. However, it takes forever to get (aproxx 1 month to where I live from China, but they have a warehouse in UK). Also, I don't know how much you pay for these, but I rarely ever exceed 3 pounds.
Aliexpress is full of fake sellers, even with 5star/5year stats. Looks like they cheating with rating sometimes.
Need been rly carefull with this china store
Which store do you use on Ali express ? Thanks
@@gizmorepairs the last ec chip I ordered was from "Shenzen Hong Ming Electronics co., LTD". Depends on what chip I need and which seller has it. Generally I go by reviews as I mentioned. However, an AXP PMIC arrived today and I suspect it being fake. All though I don't get why anyone would bother faking a chip this cheap (0.76€ incl. Shipping). Fake chips are pure evil, I just can't imagine in what belief are the people making it. 🤮
Man the pmic can't be fake.. I hope I just did a bad job soldering it somehow, or the board may be still faulty
Indeed. I have never had problems on Aliexpress with a 5 star seller and with many reviews.
I'm not doing regular repairs, just for hoby but I fully understand you. I needed past 6 months twice and I'm happy I ordered once 5x and second time 10x chips and few of them was shorted straight from package, just realised that after many ours spending to try resoove strange fault on board
I recently bought a broken asus monitor for 30euro. Nothing special, is a VG258, it's 1080p and have hdmi and dp connections. It was working but no backlight so i thought something with leds or the power circuit. It was the main chip! It shorted in the backlight control part. I initially bodged a bypass to send the blon signal when the screen get powered but it fully died after a couple of days. I dind't find the chip anywhere except in a chinese site never heard before. After payment a customer agent contacted me to tell that the chip actually was used and I could cancel the order. Very honest i can say. I didn't have anywhere else to get the chip so i got it sent to me. The chip was good and it's over a month i'm using this monitor.
Of course it did no current control.
Here in Canada I gave up on eBay in general years ago. The service is no longer cost effective with most sellers using eBay shipping plans which are seller centric and anything but buyer friendly. Everything is getting taxed and additional fees lumped on to the purchase price at the border.
How u are buying parts in canada then ?
Same thing for Brazil (probably, even worse shipping & tax rates than Canada). eBay is the last resource, only for parts not available on AliExpress or other international websites.
sir,
i have a lenovo g50 80 laptop having some strange issue
the laptop works fine but when i plug charger in if you shake the charging pin while its plugges in it will shut off instantly, but when the charger is plugged in and not turned on it wont shut off
i just want to know what the problem can be
good morning MRs Soren. i'm professional too and i have an eleitebook 840 here on working bench, more or less same board ,same SuperIO, and it had a cpu mosfet shorted (SIC631) , i replaced ,but probably cpu dies with 19v on it before i change the ic. Now my board is doing exactly the same. Don't respond to power pins and the SuperIO is consuming 0.014ma ,the only thing heating on termagraphic gun . BUT is not in short and heats normally ,like 30, 35 degrees. I checked the pin 3(power on pin)and ther is no direct connection to SuperIO , In fact i coudn't find it because there is no available skematic or boardview for this HP elitebooks ,and i can't find it on multimeter , is somewere on a transistor or something else far from the super IO ,so could that 2.2-2.4v normal on this board? we don´t know . Is the power good from the cpu making this SuperIO not starting? maybe... whithout sckematics it's dificult and we assume things that aren't true on this board.
how can you tell if a new ec chip needs programming or not?
I just found that power on pin is on q115 that is an transistor 2 cms above the power flex slot. so this 2.4v or 2.2 on my case boot the laptop,but for now no picture...just fan... Maybe the original superIO was good?
Thanks to a video i fall for less fake chips but i still fall for it sometimes. I always first inspect the marking and use some rubbing alcohol or some acetone to see if the marking gets removed, i also test resistance between the pins and also test to compare it to another chip to check the height bevause some people remove the original marking by sanding it away and ethcing new markings and that removes layers of the chip. But still tons of fake stuff i hate it, killed a few devices by using wrong chips.
You didn't check if new chip was already shorted BEFORE connected power. It's possible something else is wrong and chip got burned as soon as connecting powersupply. Original chip may just have failed differently
got shorted by what the 3.3 is there and not shorted if its shorted by something then its shorted by 3.3 to gnd which is not shorted then no both new chips is shorted from the factury
No short there with old/no chip so can't be a short on the board leading to burnt chip. I think...
The original chip is not shorted so very unlikely to have caused the new chips to short.
looks like on the right hand side at 16.20 the two upper pins are bridged
That is why i buy donor boards or faulty boards and take chip from there and re programme it for board im working on.
Wouldn't it be nice part of the Right to repair law, we could request the original EC chip from the manufacturer and they could sell them for repairs at a reasonable price.
Well then companies have to release their whole oem line of components and code and mfrs being like apple nowadays (soldering everything, no or not so many upgrades, tons of glue, locked components) it likely wont be fully fulfilled unless all governments on earth force every company to release code and component's. And when hackers can get acces to datasheets and code and chips they could find weaknesses and hack devices, basically it might be chaos if that happened but i am not totally sure
@sorin i'm waiting your videos it helps me alot for learning purpose. why u upload your video after 3 to 4 days, upload every possible videos which maybe helpful for anyone who wants to learn like me, and i am very appreciate your job, god bless you 😊 bubye
Missed you the last few days and first time I woke up early enough on Sunday for coffee with Sorin, I hope all is well my friend. Sorry you wasted so much time with dodgy eBay sellers. Welcome back.
thank you very useful, greetings from Indonesia.
Nuvoton acquired Winbond (to merge) a wise decision to turn the tide, hopefully in the short term. All the best.
Before you come with the secand chip you should check for short right?
There wasn't a short in the first place so no point for checking for short, it's short is the chip itself
Think you meant Sorin never checked the voltage of the start button after removing any of these EC chips. Perhaps he did but these videos are so edited down we have no way of knowing
@@ДимитърАндонов-ъ7е exactly, and other people reacting commenting without knowing and watching the full video. sorin is one of the best repair around the world.
ty for video. i got same problem with same chip on my lenovo laptop. almost same problem.
Thanks . It's happen so go forward
some docking station come to power by usb C on newer hp laptops
Thank you kindly.
Cheers m8.
best thing to do is always collect some doner board. i don t throw away nothing. i reuse ports, step down, ec and so on
@Electronics Repair School Hi Sergin,
I watch and really enjoy your videos.
I have a question: do you ever use oscilloscope? I would love to see at least one video when you use oscilloscope, not to show that you can use it, but because it makes your life easier. I hope you have some real use case 😉
No coffee with Sorin! Omg!
ITE chips had revision numbers on the chips and most of the time, they are not compatible between each-other.
Not sure about nuvoton chips, but my guess would be you bought wrong revision chips.
Original chip was: NPCE586HA0MX AA2
Second chip was: NPCE586HA0MX AA0 (hard to see on video if it was AA0 or AA8)
Third chip was: NPCE586HA0MX ZZ2
If i were you, would buy from ali revision AA2. Checked on ali and it was in stock and available.
Surely those different revisions would not be pinout different to cause a short though
lulz
There is no variant or revision of this chip, Second and third line of characters are manufacturing batch and date codes.
@@BootedTech I came across several two or three versions for each chip in this case NPCE586HA0MX general model "ZZ2" a completely different model. The Chinese who writes on the site wants to hunt them all writes only NPCE586HA0MX or NPCE586HA0MX AA2/NPCE586HA0MX ZZ2
In such situations, if you manage to correspond with him, explain to him that I only want model X and not the one closest to him, he will send you
Hello. What hsppend with your old ec chips provivider ? The one that program it for you.
I love it when he says LOL 😁
Sorin sorry to see that you have been give DUFF chips , such an easy repair for you, ,think scrap boards, are the way forward regards Jim
Don't be sad Sorin. Hope you get your money back! It's a cheek to sell people such crap, to fool them!😡☺
I have been getting alot of fake chips ebay amazon all fake. Its extremely frustrating. Makes me think the manufacturer makes the chip supplier flood the market with bad chips to prevent repairs
No, it is not. Chinese just make fake chips or salvage defective chips from boards and sell them as good.
More than often it's not entirely the chip supplier's fault for that, but rather of some (too many) Chinese vendors who buy those knockoff chips from them and put a lot of effort into counterfeiting them, e.g. erasing the original markings and applying new ones, usually over a layer of black paint or dye. Those counterfeit chips are then sold (suspiciously) cheap to many independent eBay vendors, who didn't realize that until it's too late to send them back (if even possible, because of the specific customs regulations about counterfeit goods in most countries).
@@silvake yeah, and as a seller it's extremely difficult to find who to blame here. What if your customer is the one who shorted the circuit then complained? And if the chip is too niche there is no way to test it without proper equipment. Most of the time sellers have to trust the Chinese marketplace's ratings unless multiple customers complain about the same irregularities.
Hi Sorin I have had a few fake components too, go for full refund 😊
I was getting 😡 angry 😤 when I did see it again. Selling smoking chips. Three times soldered on place and did not work. I thanks the seller give us the name
Oh man i love your content
use the original adapter as well as replace io chip with the flashed ec rom
Greetings
Please let me know make/ model is your thermal cam
Looking to purchase similar/same kind
Cheers
Hi Sorin how are you? I think as subscribers we have to look for you a reliable PCH, CPU and I/O chip supplier. I will look into it and come back. I love your videos and I would be willing to learn how to replace big BGA chips
Very bad that all that chip where all shorted, hope right to repair let you buy original chip from the manufacturer, some day
Hi Sorin! uploading in 4k improved dramatically 1080p quality. It looks great!
Hi Sorin, what time for a live chart???
😎Please check a BIOS battery that outputs 3V
and check if the HP battery is charging in your special test device or if it is locked. There are HP models especially without a charged 3V bios battery/or a locked battery. The computer does not turn on
Well, a short story from my own, i live in Mexico and my Thinkpad L570 one day decided to die, since there aren't (or i couldn't find one) any reliable repair shops I was forced to try and repair it on my own, all was fine (the power button was working, dc jack was working, mosfets were fine), the next thing I did was tearing doing everything and I noticed both FPC connectors of the mobo and the Rj45 board(I think they are called like that, they work like a "sandwich" with to connector one over the other to make the pins touch each other) of broken at the plastic portions, then I reassembled everything and just like that the laptop turned on, the ethernet port doesn't work, I guess there was a short there, the power button delivered 3V and mosfets worked properly or I think they did, I wanted to share my experience as a novice in this matter since this reminded me of that.
Hii there i got an Hp probook 4740s i5 but for some reason my gpu wont show in device manager. Can you please maybe try and help me pls
This is a sad moment for consumers and repairmen as manufacturers never supply their peice of products.
Sorin, nu la toate laptop-urile tensiunea pe butonul de pornire este de 3,3V , provine dintr-un rezistor pull-up si merge direct in SIO/EC. Am un hp probook 470 g4, butonul vine din sursa unui mosfet si are 2,4V, vezi schema la pagina 41.
Este editat video, transeul de la butonul de power duce direct la EC. Nu stiu ce sa zic la alte laptopopuri, dar nu am intalnit cu tensiune mai mica pe butonul de power de moment ce pullup resistorul este contectat la 3.3v
@@electronicsrepairschool Sorin which thermal camera is better, like a gun which you use in videos or for android phones, (which you put in android phone)?
@@electronicsrepairschool Te cred, eu doar am presupus ca este la fel ca la hp probook 470 g4, si pentru mine este primul laptop cu 2,4V pe buton si functioneaza asa.
On sorin's desktop only nice laptop!
May be over voltages burning the chip....
I watched you always sir, salute you sir
But please what is the name for your power supply
Bought r842 tuner ic for tv from aliexpress. Im thinking dodgy part. Long story why i believe so, but ive ordered from another seller. As if a repair job isnt hard enough. Yet more hurdles.
Trickery around every corner with these vendors (Especially Ebay). This is why I buy broken laptops/electronics for little to nothing. The downside is storage space for all this stuff.
Soldered like a factory original
A properly calibrated Sunday.
i think not removing cmos battery while soldering killed the ship
3v killing the chip?,come on
3 volts cant realy kill a Chip i have had tons of chips i accidently Fed 3 volts in to the wrong pins (some io pins) and it still worked
The problem with this laptop is that it's an HP. Unfortunately they are no longer makers of quality laptops.
I agree with one exception, i think around 2017-2018 the business grade computers are vastly better, the elitebooks and zbooks, 8th gen and newer. they have self healing bios, spill proof keyboards, really easy to disassemble, OS recovery through bios from the internet. very robust
If a chip is getting hot it is not necessarily is faulty.
Wondering if the other chip next to IO is shorted, looks like a power management IC, perhaps remove the IO chip and test to see if short is present.
people like you and other people reacting, commenting without knowing and watching the full video. sorin is one of the best repair around the world. your opinion is basic to sorin.
@@HotIssueViralTrendingPinoy I did watch the entire video, suggest you get off that horse. It's a learning electronic fix channel so before you go jumping on people from their comments, give your head a wobble.
Sorin which thermal camera is better, like a gun which you use in videos or for android phones, (which you put in android phone)?
i use the infiray p2 pro and its amazing, check it out
I mis coffee... Take care sir...
Hi Sorin, noted BOTH the IO chip and the one next to they glowed at same time on thermal camera, what is that chip. I got sniped by BS channel Sorin, Love your vids, the chip to right maybe at fault. Maybe remove the IO chip and test. Please Sorin check the caps where IO was when removed. I understand counter fit chips exist. Please revisit.
Sorin, love your videos, but just for the record - as you said "if you have a lot of faulty boards ... and just take the chip from there", otherwise it's essentially - gambling! there is exactly such seller not on eBay UK, but on eBay DE (Germany) - a company selling that exact chip (and many more) not new, but removed from a recycled working motherboard, i.e. guaranteed original and working. I've never used them and so I don't promote or recommend them in any way, but I'm just saying that there are maybe much better gambling options than buying from China or from eBay UK.
eBay aka "China's Dumpster" (ref bigclive) Can't argue with this nickname!!
The old guy is sad me too
Do you have a blower and solering equipment which you can sell at a lower cost..
Love from india
They stop making those docking station instead they started making docking station with USB C cable..
It can not charge a battery that's not there!
Hello🤝OMG everywhere fake chip 🤯
Yeah, i have completely gave up on ebay 100%. Deffently not how it used to be.
"I lost money on buying Chips" - just curiosity , don't you charge for no fix items?
Is not USA…
Sorin you need to buy pulled chips and not brand new
Get from the source directly .... I believe UK buyer also get from china ...
2.4V vs 3.3V on the power button indicates power consumption which is not shown on your power supply
I don't recommend Ebay it is either dropshipping (like the guy buys from china and sell it back for more) or fake cheap chips from china sold expensive for fast shipping.
There are some true sellers that sell used chips from used laptops long shipping but at least it's cheap and works.
That new chip has very poor graving of the logo and text if you compare the real one. Clear fake.
Ebay has a lot of legit, decent vendors, of course. The scammers use them as camouflage.
In theory, Ebay will assure customer satisfaction and enforce or provide returns/refunds when necessary.
In practice, Ebay has become just as bad as Alibaba.
Start putting the sellers name in the videos
just buy other used motherboard with same chip like you did before :)
Dear Sorin, since you r doing repairing daily basis, why dont you make collaboration with a specific vendor which is believable, Northridge FIX does the same thing।।।।
Not always u buy faulty chips Mr sorin
we mis coffee todae
NPCE586HA0MX I have a hp laptop similar symptoms . How to be sure io chip ìs bad ór fa8lty
I never use hot air to solder a QFP chip, they are very sensitive to heat as they have no heat dissipation to the board like QFN chips.
I would have not given up, you had 2 heat sources (one hotter than the other), the fact the original chip did not get hot, is, because it was most likely totally burned, not shorted any more. Pretty sure if you left the new chip on it would eventually burn out too. My guess you have something shorted going into the I/O chip, which wouldn't show up on the original chip if it was totally burned out and there would be no current draw either. Recheck the the components that were also getting hot, you'll mostly likely find your fault along there, very doubtful you buy two faulty chips, unless you got from the same seller.
I was thinking the same. It match customer description that first it failed partially before dying completely. Two with exact same short looks a bit weird but possible if it's a design issue. What if that pin with hot resistor is welded somewhere with 0 ohms to ground. Or it's not a resistor. Or perhaps sending in current when it should not. Just guessing.
He heated old chip twice w/o changing behavior or getting shorted . So I don’t think it’s related .
Ebay is proper dodgy
Buy on the black market and always screwed...
Frustrating, especially since its a Z series notebook
you should contact sellers. they should send you tested ones. wtf, if they are selling chips they should know how to test them.
no one tests the chips for you, even mouser and digikey don't test anything.
@@modorangeorge4991 That is absolutely right, even when they claim that has been tested. It is just marketing.
Ask for a refund.
🤣
LOOOOOL 😂
WHATS WRONG. THAT CHIPS OUT PUT HAS TO BE SHORTED OR SOMTHING AROUND IT IS SHORTED NO WAY YOU GET TWO SHORTED CHIPS THIERS SOMTHING ELSE SHORTED
Not noic
why not checking EC_RST, PWRBTNOUT?
What is the point? There is 2.4v on the power button and the laptop is not charging, that's a sign of 100% dead EC
@@electronicsrepairschoolyou are correct in most classes they teach all signals of laptop but don't teach right point
@@electronicsrepairschool ok.. actually i also having the same problem.. 2.4V on power button.. but EC_RST and PWRBTNOUT 3-0-3V all working fine.. the pronlem is that no SLP4 and SLP3.. how to know the EC need programming or not?