and not much experience debugging hardware

I think that would be a good idea.

People will be lying as much as they can and acting clueless to avoid paying for a failed repair attempt even blame it on you.

@@HenrikHvalpen I'm in the business and now video everything. From start to finish. Any supprises are immediately removed.

yes, I agree that people lie all the time, but this time I disagree with his conclusion. I've seen these solder balls on a lot of boards. and even those that I know for sure that no one repaired or disassembled.It's a manufacturing error and it's probably related to the use of solder paste. Besides, a professional wouldn't heat the CPU from below, and an amateur would burn the glue that's in the corners of the CPU. I think the cpu just died this time

@@ServisTOPRO yes, MacBook's always have this small solder bulbs, I already used to remove them from Apple laptops

The copper shards are from the heatsink, bad design..." They might be the reason this chipset died. Poor heat transfer then it burnt.

Sir, sir, that board is friggin burnt. That's not manufacturing defects, those components are absolutely burnt from previous attempted rework. I should know, I've spent over 10 years doing such things and have received compliments from NASA engineers regarding my soldering work. Those kind of burns just don't happen at the factory, and if you can prove otherwise, then such factories need to be shut down. You see those pitted capacitors and such? Yeah, those caps are gone, they'd never pass any factory inspection. Those have been reworked with way too much heat.

​@@southernflatland the most sensitive part to heat there is glue around the cpu and the glue is completely clear. it would not withstand the high temperature. so the cpu was not heated. I have seen these manufacturing errors on a number of boards. Even a change in the color of the capacitor solder around the power elements is normal. I have years of experience and many repairs behind me.

Indeed, these balls are both an indication that the manufacturer possibly went with the choice of "slightly more" paste and risk some free-balling rather than "slightly less" paste and open/incomplete connections, but also it's also fairly common to happen simply because when the solder paste warms up sometimes slightly differently to the planned rate and the flux will create a solder-paste-balls island which is incapable of rejoining the main mass simply because of the flux now being in the way. While we have some impressively good control over the reflow process there's always going to be localised variations of the reflow curve purely because of thermal masses, small airgaps, or so many other things. What is important here is that the resulting free-ball is of a size too small to pose a shorting risk regardless of where it rolls ( not that they tend to roll far, as they're typically bound by the cooled flux ).

21:22 - You don't so much as pass factory inspection with a functional unit with random metal slivers coming from under the chip. That thing is fubared from crappy rework. Seriously, it would have never made it past functionality tests at the factory with those loose metal slivers. Those aren't solder balls, those are literal broken copper trace fragments. Someone screwed that board to hell, and it wasn't the factory. It would have never worked in the first place to make it to a store shelf with those busted traces.

@@southernflatland random metal slivers unfortunately occur. We have been fighting about that with at least four EMS plants. I don't see evidence supporting prior rework hypothesis and I am picky about it. I have trained hundred people how to spot even single touchup, evidence of warping during reflow and improper solder paste handling just by visual clues. Especially cheaper laptops are not so well protected from any dust, that could enter enclosure. I have seen sand, hair and dust sticking to low quality TIM. That chip looks like it have internal fault.

@@brylozketrzyn Look elsewhere in the video, there's pitted capacitors and copper colored solder joints. Telltale signs of overheating and obvious points of failure. Now whether that's truly an issue of manufacturing or of rework, I can't be fully sure since I clearly haven't been to the factories in question. But in my experience, when SMD capacitors are pitted, someone seriously overheated them.

he already mention someone used a flamethrower before him and nothing happened

@@tossancuyota7848 😆

@@sethreign8103 hehe atleast the first guy didnt use splash XD

That person will go on to destroy another 4 or 5 laptops before he gets the experience to do things the right way...Learning by failure, isn't always the best way to go lol

CPU reball and reflow is very expensive procedure (and at the point of removing the CPU-PCH, u could swap them with new one... )so it can be cheaper to replace the whole board, for data recovery it can be ok, but for a repair ..

@@user-kr8tp3ko8z Yea you're probably right, not really possible or even worth the effort.

@@anthonydenn4345 yeah he is right plus a cheap 50 dollar dell not worth it

@@anthonydenn4345 really its not even worth trying to repair to begin with but still love these videos he does great

@@mike-bj4dk dell xps is worth 50 dollar? wow

Exactly… you have to have a minimum charge, even if it’s just toke and gesture.

I would charge a no fix fee.other repair channels I watch do .

@@ColinTimmins don't toke and repair

@@silenthill4 lol 😝

Free? Even if you don't charge anything you still gain valuable experience

edit: The rest of what you do takes special knowledge I do not have.

he can charge the battery this way but still cant use the battery because the bms board locked it u need software to unlock it, because it will refuse to charge/discharge

@@user-kr8tp3ko8z, i have seen it done on a smartphone by suppling 3.8V to the +ve terminal while the phone was connected to the charger as usual. It did work.

@2891 user: Yes. Totally agree with you. If my car is parked outside my house with the fault that does not start and my trusted mechanic comes to my home; In advance I know that I will pay double rate. On the other hand, if my car failed on a heavy traffic street and my mechanic comes I know that I will pay two and a half times more than a normal service and I will also have to pay for the towing service to the workshop. A novice mechanic will go to see the car, he will not fix it but he charges me for the diagnosis. All the best.

heh, if you try to bake battery -> short inside -> rapid discharge -> fire..

You can't melt solder in a car even on the super hottest day on record in direct sunlight. Although such an environment gets rather hot, it doesn't get hot enough to melt metal. I mean sure it can melt plastic, but it won't and can't melt metal. If it could, then your car radio wouldn't even work after a hot day. Think about it...

it had no screws, can u fanthom that?

www.lonco-asia.com/pdf/product_category/SCHOTT%20SEFUSE%20D6SC%20battery%20fuses%20specification.pdf

@@electronicsrepairschool Thank you. I learned something new.

am scanat cu CPU Z si mi-a dat acest raport DMI Memory Device designation ChannelA-DIMM0 format SODIMM type DDR3 total width 64 bits data width 64 bits size 4 GB speed 1600 MHz manufacturer Micron part number MT8KTF51264HZ-1G6 serial number 00000000 voltage 25.966000 manufacturer id 0x4D49 product id 0x304D

mesurments for what - he saw that voltage of the battery is rising - means that the main power rail is present - he saw that the power button is read - means that the 3.3 is present

​@@user-kr8tp3ko8z measurements for dumbasses brains to solder a miniature coffin for them, sure mr jesus here would love it

How many laptops you got for repair with a fully charged battery? :D I'm only a human and yes, sometimes i do mistakes same like everyone else :D