Seeing a lot of comments asking 'y no ultrasonic' - that's not the point of the video. Yes I could have ultrasonic'ed the board, but the video is about taking a simple approach to 'making good'. It kinda defies the point of me saying "You don't need advanced tools and expertise to approach liquid damage" if I then proceed to drop the board into a $400 USC.

@benstein7506

Ай бұрын

I completely agree. Every case is different of course, but there are instances where the path of least resistance is still a completely valid approach; From personal experience I was able to save a vintage macintosh mouse by just cleaning the 30+ y.o. coffee that was spilled onto it prior with a toothbrush and some isopropyl alcohol; it's still puttering along with the Mac se/30 that it came with to this day. I fail to see the point in giving it an ultrasonic bath as if anything were to have oxidized in that mouse, it probably would've done so DECADES ago, before any residual water had the time to evaporate.

@R4monLP

Ай бұрын

could the USC clear up the Keyboard tho?

@myselfproduction2880

Ай бұрын

if they dont complain they loose X chromosome

@Adamant_IT

Ай бұрын

I'm not sure if you can USC a keyboard... I would expect No, because you'll never get all the membrane layers to dry out - I stand to be corrected if anyone's tried it though...

@stevezorilow

Ай бұрын

Just tell 'em you ran out of milk in country... best way to use ultrasonic anyway😂

I wish all technicians had the customers wallet in mind when making repairs, it's very refreshing to see. Thanks Graham.

Nice one; I'm surprised you didn't break out the ultrasonic cleaner, though.

I believe you did the right thing on this repair. Great job!

If Apple cared about liquid damage they would have inserted a plastic sheet to protect the motherboard.

(7:00) I loved that you focused on the Part Number of that MoBo, it should be a habit to always do it for each device in your future videos. Another way of putting it, it would allow us to decide to purchase a unit if the fault is too complex to diagnose or is causing us unwanted delays or headaches. Thank you very much for sharing. A sincere congratulations. All the best.

@Adamant_IT

Ай бұрын

Yea I try to do this when I remember, but the part number is often in an annoying location that requires me to re-position the board and cameras to get the shot, so I often skip.

@AzuaraRuiz-ot3tt

Ай бұрын

@@Adamant_IT Hi. Thank you very much for answering. Well, I accept but you can leave the information in the description then. Sorry for insisting, it's just that I used to look at your content first when I receive a Macbook laptop. Dell is abundant here in my region, so I am more familiar with this manufacturer. Again, thank you very much for your response. A fraternal greeting from Sinaloa, Mexico (7:05am here, right now).

Just because it's old doesn't mean a keyboard replacement is too much work. I replaced the keyboard and fan on a 10 year old Lenovo we have at home, but that old keyboard was just falling apart after what my brother did to it. I did have to wait for a set of laptop screws from Temu (it's either them or I place an order for 10000 screws with a manufacturer), but it was worth it.

The return rate of that MacBook is very high. At the very least it needs proper reflow with some flux and if you want a better outcome for your customer you need to replace all parts been damaged by water because they look and are not competent enough. I used to clean boards like this but they always come back AND they're much harder to repair afterwards.. so I started replacing all components and never had a MacBook returned..

@Adamant_IT

Ай бұрын

I agree on principle, but that's no longer economically viable on these logic boards IMHO.

@keywal

Ай бұрын

Ordinarily I'd agree with the approach but not in this case. As long as the customer is given the right expectations and you can low ball a cleaning job to get them out of a jam quickly, then i wouldn't do more than Graham did here.

@gabrielecarbone8235

Ай бұрын

mh, not my experience, return rate after a board resurrected just by cleaning is usually just more customers because i offered a very cheap repair to that one guy and he told all his friends about it in my experience, the thing that breaks the most with light liquid damage is the keyboard backlight, that's why i have a huge stock of fluorescent key stickers to avoid replacing

Thank you so much for such descriptive and knowledgeable videos you make. Greatly appreciated.

Done watching, thank you very much for the informative repair video. I have learned significantly more troubleshooting & repair lessons in this tutorial video and to your other repair videos as well compared to my ENTIRE 4 YEARS OF COLLEGE due to the rotten & outdated standards of education here in the Philippines. I hope you will soon have a mini-series for Schematic & Boardview-free Voltage/Power Rail Tracing[12V/18-20V Main Voltage Rail, 5V, 3.3V, CPU/GPU Core Voltage Rail, DRAM Voltage Rail, IGPU Voltage Rail, System Agent/Northbridge Voltage Rail, PCH Voltage Rail, BIOS Voltage Rail, Battery Power Rail], Proper method of testing/checking of potentially faulty MOSFETs & ICs/Controller Chips, CPU/GPU/PCH Reballing and BIOS Bin File Editing.

Hot coffee on the keyboard is a crisis and the hazard of the laptop... For home use I use a desk top with a cheap, disposal keyboard. Adamant, you are great!

@georgeprout42

Ай бұрын

I have two keyboards. When the coffee inevitably goes in I swap them over.Then it goes into the dishwasher (electronic bits removed of course) and becomes the spare for next time. There is always a next time.

When use my MBP I avoid coffee and tea, I only drink chocolate milk, in fact it can debug system errors if you spill it in the trackpad

Great video as always, it's funny that you said "old" laptop as my gf continues to use her 2012 MacBook pro buyed used and it works flawless, just added more ram, and a SSD with a caddy in the DVD drive because the flex for the HDD died a time after replacing. Even the battery lasts a couple hours

To all the fellas that commented to use ULTRASONIC CLEANER on THE KEYBOARD: did it ever work for keys that actually don't work (usually a diagonal row like "7UJM") ?

What about using the ultrasonic cleaner? Isn't it better than the toothbrush? In any case, I think if it works for now, that's enough. Also, I don't know why customers don't create an account for the technician 😅. It's easy and they can test the laptop properly without accessing your data...

C'mon Graham, where's the ritual removal of the JTAG?

Clean the keyboard with a contact cleaner like KONTAKT PCC, it will be like new 😁

Great vid. Sometimes the simplest solution is the best one. Is running the ultrasonic cleaner expensive? Cause i would rather thow in there and do other stuff in the meantime than manually brushing every part of the board.

Have you considered an ultra-sonic cleaner?

What is the schematic software that you're using?

Would an ultrasonic cleaner be used with the cleaning of the board?

Why no ultrasonic for this one ?

Great channel and content what is the backing music at 4:28 ?

@Adamant_IT

Ай бұрын

Thomas Hood - Piano Preface, from the _All Because Of You_ EP kzread.info/dash/bejne/lnyEo8OfadjZj9Y.html

Why not sonic clean both the keyboard and PCB?

10:42 Die JTAG Die

What is SMC ???

@Adamant_IT

Ай бұрын

The System Management Controller is a mac's Embedded Controller (EC) which handles low-level hardware - getting the mobo powered up, managing the cooling fan and temperature sensors, things like that. It is mission critical and the first part of a motherboard to turn on.

You remind me of a platypus.

you are so obsessed with schematics that it will be no suprise to see you looking for schematics for removing the back cover of a laptop.Thank you for sharing tho

@Adamant_IT

Ай бұрын

It's true! The reason why though, is that the more a learner familiarises themselves with looking through schematics and understanding what sections of a motherboard are doing, the more clearly they can see patterns in design. People ask me "how did you know that X connected to Y?" ...Because when you look at the schematics, you see that repeating pattern, and you know what to look for next time. Learning this stuff requires repetition until it sinks in.

@namemenick9819

Ай бұрын

@@Adamant_IT ok.i see your point.