Why are your videos *so* interesting? I've never thought that I will enjoy looking at someone soldering some chip balls, yet I find it intriguing. Is it because you mix humor, life advice and explaining things in perfect proportion? PS: I don't expect Louis to reply.

@rossmanngroup

8 жыл бұрын

+Wojtek Kiraga I will never understand it

@philipm1896

8 жыл бұрын

ha ha he did. i also agree

@ianide2480

6 жыл бұрын

So PPV54 and LMNOP42 are both screwed so we need to check OU812. What we need to do is desolder pin 69 and find its square root (8 something). And THIS is why it's do damn interesting......

I bet that chip gets made fun of for not having balls...

@xennelul

8 жыл бұрын

and needing a pad...

Your videos are simply the best n your hand towards fixing those pads n destroyed path is amazing

I watch your uploads frequently and I still can't get over the optics of the stereoscope. Our POV is excellent. I work on various modules and PCB's associated with Aerial Photog /Drones. I would be in heaven seven to have this kind of visual.

@rossmanngroup

8 жыл бұрын

It looks even better with your own eyes rather than seeing what the camera sees(which YT then compresses the F out of)

Louis question if you get time for it, where is the wire attached too besides the blown pad? Isn't it suppose to be connecting to another part of the board, a different pad? Let me know I'm curious. Or is it used just to connect the pad to the ball in such a way that there needs to be the wire there to form the connection?

Nice job!! Great to see a veteran tech at work

keep up the good workmanship

Any suggestions for micro-BGAs with a .23mm pad size? 4x5 array. I keep bridging with an inner ball.

So i know this is one idea you might not want to do Louis .. But I'd love to see a video of the top 10 or top 20 components to always make sure to keep in stock along with the reason to have X component that you may not wanna get from donor boards, complete with enough data on each component so anyone can order from say mauser.. It'd be great for people who's starting in on this field

Thanks for sharing 😀👍

what is it you scrub against the board before using your hot air gun and what its used for?

Thank you for movie. Best regards from Poland.

Hi Louis can you help me to get some bin bios file even if they have an icloud setup inside :(

You just taught me so much, thank you.

Sir good iam romany from egypt ihave mini pcb pc board it bent foroced during i remove it and the boared stop workenig the cpu pga soldring directly on board the side of board was bent may some bga balls are dis connected kindly i need your advice what can i do to resoldring the dis conncted balls please help me

good job!

And the schematic was never opened that day to show us why this ball actually came off in the first place

was the heat gun angle the cause of the directional pad damage?

Magically reincarnating Dell Studio laptop! And mysteriously Louis needs a jacket and long sleeve shirt the week before July in New York.

louis can u recommend me a cheap flux that does the job? I am ordering from banggood. If that helps

Em.. not sure about this but did you replace a polyfuse with a 0 ohm resistor? (0 was written in there).. Also polyfuse reverts to the working state after current drops to reasonable levels - self resets (based on fuse specs), so no wonder that the polyfuse almost newer blows... or am i wrong?

Very good!!!!

it would be very helpful if you could tell as to which toolkit is best for working with phones and laptops..

@rossmanngroup

8 жыл бұрын

+Yash Wate I have a one hour video on tools but no one watches it

Good Job Man ............

Great video! But why do you choose the NC-559-V2-TF Tacky Flux over the VS-213-A-TF ? Amtech's web site says that the NC-559-V2-TF needs to be completely cleaned away to avoid contamination, capacitive effects and possible corrosion, over time (but still names it "No-Clean"!). Also, the NC-559-V2-TF is listed as: "won’t solder lead-free metals". Isn't all solder tinn sold today, lead free (Environmental requirements) ? My task is to heat up a GPU in order to re-seat the chip hoping to mend cracked or broken solder balls underneath it, without actually removing the chip. I have been told that this may fix a malfunctioning GPU, as they tend to elevate from the PCB if overheated during operation, possibly causing some odd balls to crack and loose contact. Then, by applying plenty of flux, melting it and letting it flow in underneath the chip, is said to be a useful method that may fix such problems. But of course, since the chip isn't removed, cleaning away remaining flux underneath it, is impossible. Comments?

*C'est du travail de professionnel🙂.*

hello sir .. why brand is the flux ...

Hi. I have been watching many of your videos. It surprises me that you heat the chips (from the top) for a relative long time with your hot air soldering tool. Isn't there a risk of overheating them? I just ordered a hot air soldering tool, and I am going to practice on some old boards first, to get used to this soldering technique. Also: some chips require a thermal pad. Are the chips in this case soldered to the thermal pad, or do they use thermal conductive grease most of the time?

@robertbackhaus8911

8 жыл бұрын

That is how the chips are designed to be used. BGA chips are made with balls of solder already on them, although Louis is reusing parts, so he makes do with creating his own with solder on the board's pads instead. Other components don't have solder balls when new - with these, a solder paste - microscopic balls of solder suspended in flux gel - is put on the pads and the components placed on top. Then the whole board is put through an oven which heats everything up to the solder's melting point. Louis doesn't use paste, he just melts fresh solder onto the pads, adds more flux, and heats. Parts with thermal pads under them just have either solder paste or balls underneath the pad, and it is soldered to be board in an oven. If hand soldering them, you just need to get everything to the right temp.

Hey Louis I love your videos, you may have answered this in a previous video but I have not watched all of them. Would you consider doing videos on fixing other products? I would love to see you fix a drone for example, they are becoming increasingly relevant nowadays and nobody on KZread is doing component level repair. And televisions? My TV has a screech going on. Anyways I thought I would ask. I absolutely love your channel!

@rossmanngroup

8 жыл бұрын

TVs cost $299 at best buy so people expect me to fix them for $49. even worse they want me to come to their house, fix it on the spot, all for $49. so I will never fix a television. in terms of drones, if demand were high enough and people were willing to pay sure..

@TeeOCee

8 жыл бұрын

Louis Rossmann Awesome! Thanks for the reply. Well I will be sticking around to see what happens. Cheers.

@remotecontrolaholic

8 жыл бұрын

+TeeOCee what drones are you referring to? I build quadcopters, you don't need microsoldering to fix them 99% of the time.

@TeeOCee

8 жыл бұрын

I've seen plenty of drones flown into water. This is something you may need micro soldering to fix

@fahhad17

8 жыл бұрын

you can use bag of rice ...inside your drone, it might fix it ....for tv use bigger bag

hi Louis ,can you pls help me screw got jam on the aluminium frame for Mac book pro13 inch which r + screws

@Amixus

8 жыл бұрын

Read the message in the beginning of the video. :)

@Finkelfunk

8 жыл бұрын

Not everybody has annotations turned on, neither did I, but thanks for pointing it out.

5:38 They call him Louis - The Flux Guy :P Good job

"Stuck-up balls" lol

Why you put the wire there? Can you explain a little bit further? I saw it on your other videos too. You put a wire but i don't know why.

@robertbackhaus8911

8 жыл бұрын

I can explain. That pin holds a high voltage, so, when this board got wet, electrolysis ate the copper pad away from under that ball of solder. In order to get the board working, he had to replace the missing pad. So he soldered a wire from a nearby point to where the pad was, and allowed it to solder to the pad on the new chip.

@michailgiannopoulos5274

8 жыл бұрын

+Robert Backhaus Thank you so much. All became clear to me now.

Louis: "OK" - my android bleeps. Seems to be enough for my phone.

You never showed the schematic and why that pad blew as you told in the beginning :p nice job though! It always looks so damn easy under a microscope haha.

Louis, or anybody else. Can't I use other wire than from a unibody mac battery?

@rossmanngroup

8 жыл бұрын

+Alejandro Betancourt you can use whatever works!

@alejandrobetancourt4902

8 жыл бұрын

+Louis Rossmann Thank you. You're the shit. I saw the video where you explained how you helped the girl move out into a hotel and get her dad arrested and she killed herself. You are a good, hard working, humble person and you deserve all the success you have.

13:50 that sound when you accidentally sit on a USB cable

Sometimes the broken screens are beautiful, lol.

How can it dance. There is no music

'0" is a zero ohm jumper.

@jani140

6 жыл бұрын

Harry Haefner Yes. And it always behaves like an intact fuse. Well, bit like tinfoil wrapped around the fusebox... But anyway the christmastree lights again.

Louis make iphone videos please, you are the best,brazil here !

@Amixus

8 жыл бұрын

He will not, because it is to much pain in the ass with the customers. They phoned him 5x per day and wrote like 10 mails per day only to ask if the phone is repaired. People can live nowadays without a laptop but not without a phone. He mention once his experience with this in one of his videos.

@bman12three43

8 жыл бұрын

lol he took the phone from the customer to look at it and she freaked out the second he took it.

@Nabekukka

8 жыл бұрын

Check out a channel called iPad Rehab, Jessa has some iPhone and iPad component repair videos there, basically the same stuff what Louis does, but with iPhones.

LOL what if the Bad BGA pad is in the middle ? drill a hole under the motherboard with the wire already welded to the chip ? im not making fun of you but just thinking of a solution.

@rasvial

8 жыл бұрын

most motherboards use many layers of traces inside a single pcb- there might be something in the middle of the board you're drilling through or shorting

@Monkeh616

8 жыл бұрын

You could mill out the layer(s) of fibreglass and reinstate the via and pad, along with substrate.. there's just no way it's economical to do for a Macbook. You lose a non-edge pad on a fine pitch BGA, you scrap the board. Some of the really low density BGAs you could possibly run a very fine wire to if you can locate the net somewhere accessible.

10th jk 9th... i am sorry Louis.. ill let myself out

🤔

ASMR reballing.

>apple >computer xD

That's too much flux. Trust me, I'm an engineer

@adasdasdasdasdasd9678

8 жыл бұрын

Rule number 1 in soldering : There's never too much flux. Never. Use the flux, Luke !

@Paullsthebest

8 жыл бұрын

I use flux everyday to brush my teeth, never use too much and they'll always shine. Trust me, I'm an engineer P.S: More than salty it's kinda bittersweet, like a sarcastic joke ;P

You look like Sheldon cooper from BBT... 🤣😂

Dong Saya Dae :3

damm near 1st :)

First

last

What's with all the cancerous comments? :( I liked reading the comments knowing I'd learn something not stupid jokes.

No balls...........say WHAT........ Really bad That's not good someone's fuckin fired!

love you man (no homo!)

one of the balls didn't drop

another video with zero information on the gluey stuff. welp thats it...