Thank you!!! Learned my lesson on the u7000. Bought a dead 2011 mb pro (already had the replacement logic board from Apple) mainly for the body and LCD. Figured what the hell and took a look. Yep! Faulty resistors for current sensing on charger side. Dim green charger light. Replaced and still no go. Checked onewire and no acok signal from u7000. Replaced and wham!!!! Works like a charm. Fans spun, all done! Ha passed ASD. Now have working pro instead of for parts! Thanks to you, Louis!!!!

Not editing out the mistakes is ONE more reason I keep watching you. Went back to this one and just gotta say thanks! 🙏🏻

I always have trouble applying solder around the edges of a QFN. I saw in another video where a guy tins the pins first, then applies it to the board. Another great video, Louis. Please keep them coming!

Great videos buddy, just subbed. I used to build e cigs and this really makes me want to get back into making them again, especially for a video.

We're performing this repair in Jerusalem, Israel right now. I like your videos Louis. We came to the conclusion that this chip was bad before finding this video, and were looking for an alternative chip before we realized we have it in stock. I'm using a $125 heat station that doesn't give me any of the grief that you mentioned.

Dude u make that look freakishly easy, I can see why your fitting Apple!! Great work man :)

Louis, Thank you. Mad Skillz.

I swear you make this look so easy, how did you practice soldering? did you start practicing with customer boards, or with junk boards you just had lying around? At my store, we have tons of customer PC's but i dont want to test my "soldering" abilities on their boards, and by the way, thanks for the replies on my earlier comments, i greatly appreciate it

@rossmanngroup

8 жыл бұрын

+Michael Paul it was a long journey with a mix of everything

Excellent!

i have a problem with the 4 pin macbook pro 2010 fan connector where do you know im need to go for replacement or soldering that piece?

Hei Louis! Does the last numbers on ISL625 9AHRTZ chip makes any difference? For example mine has F314NR or can it be replaced with any ISL625 9AHRTZ chip?

What solder iron do you use? Why it hold solder so well?

How many different mac motherboards models do you usually get in for repair within a few months? Did it make sense for you to buy the whole Mac bundle of schematics or do you just see 4-5 of the same boards come in all the time?

Soldering skills on point.

at 3:00, what solder tip is that? how come it hold solder so well?

hi ! Nice video Louis ! i was wondering what kind of tools you are using ? It's a solder iron and a flux machine ... ? do you have any reference ?

@rossmanngroup

8 жыл бұрын

+Wapiti123 watch my tools video on this channel kzread.info/dash/bejne/lIqjpLyqnNmpe9I.html

which temperature you use the soldering iron ? nice video

@laynelowry

5 жыл бұрын

UBREAKIFIX here, Louis! Same question, homie. Hope you're doing well.

10:06 why is the solder not sticking onto those circle pads? why is it only sticking to the chip?

8:11 thank you, I think I just stress out way too much.

Please friend, whats the temperature used in your air station and soldering iron for the ISL6259 ??? Thank you very much!!!

Hi Louis, let me start saying I suck at using the hotair gun. I am trying to fix my macbook, looks like the Q7260 is bad. There's voltage on the source pins and nothing coming out of drain pins. My question is what is the temperature (Ceilsius) to get this chip off the board. I tried 400C for a few seconds but the solder doesnt melt, is there any trick I am missing? I appreciate your help. thank you.

Just a heads up, you can’t accurately measure resistors when they are still in circuit. You gotta disconnect/isolate one side first. Obviously when he measured the second one and it read as open, it didn’t matter.

@Mueller3D

3 жыл бұрын

If you measure a resistance that is higher than the value of the resistor, you know the resistor is bad. If you measure a resistance that is lower, you don't know, since current could be flowing along other paths.

This chip is a real diva. I had to solder it 3-4 times until it worked correctly.

$22.08 for fifty of those chips online, but when you need one they're priceless.

Hi, i have an incompatibiliti with the IC so, someone know the reason, i use the same model board, the same year

Until yet i burned two u7000. I used hot air 200 250 300 350 400 450. I'm confused what the degree of hot gun

What would be a problem to a MacBook Pro with screen will not show any light and is black. Computer runs and works, transferring it to another monitor screen. Any help?

@MattLazenbury

5 жыл бұрын

Have a look at this if you're running High Sierra: realmacmods.com/macbook-2011-radeon-gpu-disable/

Why did the fried chip say ISL6259AHRTZ but the replacement ISL6259HRTZ? Seems like they're not the same based on the comments below?

Where do you source these parts? Other dead macbooks?

Are ISL6259AHRTZ and ISL6259HRTZ the same? I've a Macbook Air 13" (MacbookAir5,2, Mid-2012) with MagSafe light not working, the battery is not charging anymore (tested with 2 different magsafes and 2 different batteries and still failing). A local shop said that it's caused to ISL6259AHRTZ, they ordered it and it seems that they got ISL6259HRTZ instead of ISL6259AHRTZ.

@rossmanngroup

8 жыл бұрын

+Óscar M. Lage NO!!!!!

@flerrelectronics7704

8 жыл бұрын

That should be obvious... They have different names!!

@alexandruilea915

8 жыл бұрын

Probably this is old and I should not ask here but what if I have a led for charging and it is charging but sadly only with 6 watts maximum so it take like 12 hours to charge. The laptop works well without the battery just much more slower, the charger is good and the battery it's good too.

Hi i just bought a macbook pro 13 retina late 2013 on the diagnostic i got a faulty memory module. Can i change those ram chips from the logicbord . I think thats the problem that causes the errors Wen i want to reinstall the mac os x mavericks

@goku445

3 жыл бұрын

No. Just never buy Apple junk again.

I guess OL means "Over Limit" but i have actually never read up on it :D

@TBasianeyes

4 жыл бұрын

it means open loop

Dear louis, I am from Argentina, I would like you to indicate me please make and model your microscope and where I could acquire it, thank you and greetings!

@Dasgath

7 жыл бұрын

Tiene todas sus herramientas en la descripcion del video: www.amazon.com/gp/product/B01H4FOLVM/ref=as_li_tl?ie=UTF8&tag=rossmanngroup-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B01H4FOLVM&linkId=9ea4ad1a1b60599182bcfd6beaf396fb Hay una opcion mas barata pero no es trinocular.

@AlejandroLopez-ns9ve

5 жыл бұрын

Jorge Seriol-the brand is AMSCOPE

Where do buy ISL6259AHRTZ? Neither Mouser nor Digikey has it.

@rossmanngroup

9 жыл бұрын

Andrew Bower Dumpster diving same as the rest of the stuff we do in this business. Google, buy, and pray!

Hello guys, I'm a very young electronics technician, I know the theory, but in practice I leave a little to be desired. My course was not so good for this reason, they teach the theory, but the practice does not. I had to learn the basics at my stage, but I still have not achieved my goals. Would it be possible if you, technicians with experience, could pass me tips and videos or channels even if they teach to use the hot air station for example? I would greatly appreciate all of you. hugs from Brazil

the title should be "How NOT to solder a QFN"! That was solder butchery at it's finest... :)

why in this video you used moderate amounts of flux?

hey louis i have a macbook pro 15 inch that didnt give pm_slp_s4. it got water spill on it and board was cleaned. all other voltage are present: pm_pwrbtn, and so on are ok and they goes to 0 when i press power botton but macbook wont power on. i also have 1.05volt mcp present and 3.3 volt too, but machine seems dead. bad mcp and i need to replace it or where can i look at ? board code is 820-2330

@rossmanngroup

8 жыл бұрын

+ScruffyITA could be anything

@ScruffyITA

8 жыл бұрын

tnx for reply.i have also a macbook that when i short smc_onoff_l pad fan spin for 1 second then goes off and each time i short the smc bypass it do the same.... reballed nvidia and also reballed cpu and also reblled smc and reprogrammed bios, but it's always the same. board code is 820-2879. have u ever get a macbook with the same synthom ? when i check coils voltage while doing smc bypass i get voltage coming for one second then off..

Hello! I ask you for help. I also apologize for my English, I print in Russian, and Google translates the translator. I myself am just beginning to study the profession of repair. My MacBook A1502 EMC 2875 15 does not turn on and does not charge, the indicator does not work.The cause of the problem is a broken car charger (China) .When I watch your video, I want to replace the U7100 ( ISL6259). R7121 (5.90 Om) R7122(5.91Om) C7120(0.586V) C7121(In a short circuit, when the computer is turned off) . С7150 (In a short circuit permanently, but on it is 1.281v). С7008 (3.399V) C7000 (Has a short circuit when the computer is turned on Magsafe) Can you tell me if 9AHRTZ is a replacement?

Wrong way to clean the pads. It will lift if you do that! You should use solder wick. You also can use liquid flux instead of the integrated flux core in the solder.

@217raptor217

7 жыл бұрын

No, solder wick will pull the pads off the board, never use it in rework unless you know what you are doing.

is isl 6268 and isl 6259 same?

@rossmanngroup

8 жыл бұрын

+Turbo NO!!!!

You can almost notice at 7:59 that the chip isn't quite lined up the same when he pushed down with the tweezers compared to how it was lined up by itself a couple seconds earlier. It's very subtle, though, and easy to miss. If he'd cleaned it up, perhaps he could have seen it wasn't lined up right. These things are just too darn small!

Why do you not buy resistors, capacitors and etc etc on the internet? instead of taking them from other boards.

@94mac

7 жыл бұрын

FlerrElectronics because it saves money and time because he already has the parts on hands, makes it so he doesn't have to wait 2 weeks to get the parts from China lol

@goku445

3 жыл бұрын

Because recycling is good.

Dude if your going to use this method why not use kapton tape to hold the component to line it up.

@rossmanngroup

7 жыл бұрын

bad idea

@niceguy60

7 жыл бұрын

I think it was counter productive in your video to line the component up only to have it fall all out of alignment when you hit it with your hot air wand. At the least you need to turn down your air flow to stop the device from moving

So, there was a time when Louis didn't put in that flux.

You need to be on the Joe Rogan Podcast!

@liamvg

7 жыл бұрын

Agreed

@goku445

3 жыл бұрын

Joe Rogan sucks.

...

Жесть

JESUS LOVES YOU BEYOND WHAT WORDS CAN EXPRESS GUYS INCLUDING YOU READING THIS ITS TRUE.

I still feel you and Erica should have had a couple children. Not sure what sex children, but at least two. It may have been the best chance you have to have children especially how crazy ya'll ride on your electric bike. If ya'll get an Electramechnica Solo for driving in Austin you may have future children. Just don't know as these women will be less and less desirable as ya'll get older.