Asus ROG STRIX G533Q - No power, Not charging, motherboard repair
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- Опубликовано: 13 мар 2024
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As someone who repairs laptops for a living I've noticed that people seem to think every laptop should be repaired for less than £25. What people don't realise is that anyone can solder a chip on a board, anyone can buy a chip from Mouser or Aliexpress and anyone can notice the laptop doesn't switch on. What most people don't have is the KNOWLEDGE to fault find and diagnose problems, this is what they're paying for (after parts costs of course), you cannot open up your own laptop and go BQ is bad and mosfets are shorted without experience gained over many years. This is what you pay for in laptop repair!!
And iphone boards are sandwiched now. I wouldn't even touch one those for less than $200
It's not just for laptops, this goes for basically any machine that need repairs, even cars. It's the knowledge and diagnostics that are most of the time what you are paying for; removing dirt from a sensor, fixing a bad contact, all easy fixes, but through knowledge and experience you know these easy fixes are the cause of a problem the customer has ...
In my country i can easily charge between 100€ - 150€ and they think its ok… maybe you need to work on your sales skills. Who works for 25€ or pounds?? Africa, asia…
I worked in IT at a University for 13 years recently retired due to ill health, reparing student laptops was a free service, most people are more than happy to have their devices repaired, but on occassion you meet the entitled, the when is it going to be ready, not wanting to wait, liquid spills, drive recovery, what i used to do with those people is give the device back and tell them to take it to PC world knowing full well the cost, £25 is taking the PI SS it usually costs £75 pounds for a diagnostic, turning the machine on looking at the automation of the hardware in the BIOS, checking the fans are spinning, before any repairs are done, you should charge what you think you are worth! If i get issue with my machines they will be going to you!
I wouldn’t touch it for anything less than 50€. Opening, diagnosing and repairing needs time and expensive tools. I’m doing it as a hobby.
Mouser has free shipping above 50 euros merchandise so in most cases it makes sense to combine various things you want to buy together and avoid the 20 euros shipping charge.
More then likely the mosfets were shorted but because the BQ chip was dead and it wasn't showing a short since its 2 internal mosfets went open circuit. After replacing the BQ chip its internal mosfets sent the dead mosfets gates to ground. That is at least what has happen to me before
Doubt it they weren't shorted at the start and they would have been if they were faulty to start with.
@JonnyMac351 if a mosfet or transistor burns open you won't see anything when testing for continuity. Not ever mosfet goes short when it fails (yes it does commonly short). Small mosfets commonly burn open where higher current mosfets tend to short circuit. The mosfets in the BQ chip are very small low current mosfets used to control the gates of a more powerful mosfets
@@1998eclipse1998 Yes i realise that champ i have been in the electronics and repair industry for 41 years
Once again a great job,well done MrSorin.
One of the most thrilling videos you have made. Thank you.
7:22 If that chip is in focus you need to get some glasses Sorin 😄
The first time after you replaced the chip there was a spark when you injected power.
I seen that also, he touched a ground part of the DC port for a millisecond at 15:47, dont think that would cause them mosfets to short though, a strange one!
Nice work Sorin, another great lesson, always expect the unexpected charger i.d. pin!😀
I really relate to the happiness you experienced when you got it working. Thank you for this video, Mr. Sorin. It's the second video from you that I watch so far *subscribed*
As always, you are perfect, Sorin! I have learned a lot from you. Thank you for everything.
Well done Sorin great fix very confusing why the mosfets burnt out thanks for sharing
I had this exact same problem Monday! Could not figure out why the 2 battery charging mosfets blew when I swapped the BQ chip. No charger ID on my power supply....
It's like I just watched myself.
So, no charger ID pin on power supply can blow the charging mosfets?
This is insane. I was so confused.
Well done Sorin!
Master sorin I've been watching you for years and still smiling when you say "It is crazy it is working" :)) I will say that if one day you we cant see the screen :)
This was a pain in the dig and the result is Perfect*👍
Sorin, There was one time that you tried using your power supply I saw a spark at your positive lead. I think that is when the mosfets shorted.
22:37 "It was not shorted!" . That is how I feel! 🙂 Love you Sir.
Nice one! You really know your stuff. 😊
15:48 when you put the probe on the port it sparks, so could that be cause of blowing mosfets?
OG Sorin saves the day again !!!!!
I'm from Brazil.
You are simple the best!
He is not simple, but a complex individual...😊😊😊
Good Job sorin keep on
Good job
The BQ chip was not supplying power, and when you replaced it with a good one, the mosfet burned when the power was released .
Maybe the MOSFETs are the reason why the BQ chip failed in the first place
Yes that make since
No it doesn't work like that they would have been shorted from the start if that was the case and they weren't and there was a spark when he injected power with his power supply i think his lead slipped and shorted something have a look at the video again.
@JonnyMac351 Yeah was a pretty big spark.
nice work sir!
Nice job, Sorin! Just fixed a Gigabyte Aero 17 fairly new gaming laptop with exactly the same fault, both mosfets and the BQ 24780. Might be a new type of common fault (I hope 😁), I had enough of the shorted chipsets
Great video, good learning. So there is those laptops that won’t turn on without the original charger. That could make your head spin, and mess up more than to fix it.
good job, thanks.
Thanks!
Good job mate
Thank you
Hello Sorin
I believe when you use power supply straight on the charger port you suddenly touch id pin and click the power supply
Base on motherboard sheet if 19v on id pin to ignore dead other component like EC dead mosfets.
I think I know what happened. I think only one of those MOSFETs was short, so I assume the TOP-Side one (the one which connects to the power rail). Therefore you could not measure any short to GND, because there was actually a short to the voltage rail. The BQ-Chip was defenitly damaged, at least it's output drivers for the MOSFETs, therefore the short did not continue further with the bad drivers, because the chip had no possibility to turn on the LOW-MOSFET and shorting the complete power rail to GND. With the new BQ-Chip with functioning output drivers the it controlled the bottom MOSFET and switched it on and because the TOP one was shorted the whole rail got shorted and it killed the remaining good LOW-SIDE MOSFET in the process. I am pretty confident that this is how it happened, because i actually do such circuits as an electronics design engineer, not for computers but for industial electronics. I have seen many weird failure modes of BUCK or BOOST converters which you can't possilbly think of that those can happen ;-)
And lastly thank Sorin for that really thrilling repair video (y)
BQ IC faulty
Experience matters
Thanks for uploading difficult job .
nice to watch too
I think your knowledge and skills are great, it's nice that you also show these videos where problems arise that you can't solve "so easily". always very instructive!
Hello Sorin
Intersill 9538C chip is also a charging chip also supports USB C ports power Delivery
Very interesting!
DELL .. Used to be "Notorious" for Requiring exclusive use of Their Chargers Only !! Couldn't use Any Others !!
Great Sorin🎉🎉🎉🎉
33:50 battery charging voltage when charger is plugged -also it goes up as battery charges more-.. not battery voltage (charging voltage higher than the battery voltage(about 1volts)) its the voltage from the coil (buck converter (diode of low mosfet ) and high MOSFET for switching ) , thank you from Palestine
🇿🇲🇿🇲🇿🇲🇿🇲🇿🇲 Zambia we love you
Nice one
have a very similar nice laptop. same series.
9538ch intersil chip close to the bq chip that control the charging circut of the battery and also control the gate of the the mosfets chip
Hi sorin love from India ❤❤❤
These BQ chips have a firmware inside similar to those on laptop batteries... Maybe it needs time to learn the environment... To communicate with the other controllers on the MB & the chip on the battery... And that might have delayed something just enough to burn the mosfets
It's always the barbecue chip 😆
1 kilometer of capton tape, nice LOL
Probably BQ chip burned one gate which doesn't give symptoms on discharged battery, unless you give power from outside, then boom.
"and it's working, can't believe"
Sir you've fixed thousands of laptops 😂😂😂
after changing BQ chip and trying to add voltage to laptop with power supply (not original charger) you can see sparks when adding positive terminal to charging port. This was due to shorting pins short with 19V and 4+ amps. I think this was the end for those mosfets - they didn't see that coming :D
Maybe you touched the sense id pin when you have put 19v on the charge connector since you didnt know there was a sense pin ? Thanks for your intresting RUclips
so excited , "we have picture that's crazy ! "
29:20 maybe you activated the mosfet with a multimeter
For me isn't because there Is a resistor and capacitor to ground for discarge gate.
For me Is a temperature and It are some hot and the resistance Is very low and when sorin plug Power suply shorted both of them
Sorry for my english i'm Italian
Is there anyway to simulate the charger id pin for example with some pullup resistors or some simple circuit ?
Fast one ❤ father i love you anda now you make me good and i have my office because of ur class. Sorry not good English
73' Do you think the Mosfet could burned by static electricity?
GoodJob👌
Sir everything is going good but my intention is that it is really gone failure of the chip or only MOSFET s I have doubt? but a working laptop is always a good sign for a good technicians ❤
Those mosfets where shorted when you came with the power supply. you can see the huge spark at the charging port when first starting. Thats your origin.
When you touch by the power port it sparked after you put on the new bq
your first soldering of the bq chip was inproper.. that caused the short...
maybe you shorted the id pin causing the mosfets to blow. maybe even fixing the id line by blowing some shorted cap open in the process.
how did battery survived with short without blowing fuse as it was almost fully charged?
Why the FETs failed? Maybe the original faulty BQ chip sent too much voltage to the FETs and weakened them so that when a working BQ chip was fitted and the power was supplied the FETs then failed on supplying initial current to the battery. Total guess. I'm not sure about when Sorin shorted the power probe to ground at 15:45 as has been suggested. I can't see how that would destroy two FETs simultaneously so far away from the point of the spark. As it was just the power probe being shorted to ground it wouldn't have gone through those FETs but that is probably why the power supply clicked. I know what we all say about coincidences... but.
the customer wanted to trick the master of niceness.
I have a Asus rog G513qm and the orange led came online few seconds then it dissappeared for good. I am not sure what could be the issue but if this is the one I am screwed...I casually use this laptop
Was it the chip or the mosfets ??
💪
Sorin hello from Serbia🇷🇸❤️🇷🇴
Srbistan
@@smpbih 👍
35:55 best moment every vid🥲💖
You have picture😊
Use the schematic and check why there's no gate voltage
Sir my laptop asus rog strix g15 2022 is not charging since yesterday... Suddenly it stopped charging.. the charging indicator does not turn on and the laptop only turns on when plugged in... What should I do in order to fix it? It's 3 months old
The sound has been a bit muffled, ie, no treble, for the last half dozen vids, ie, it's a bit hard to hear.
wish you were in south africa
could it be that the BQ chip sent more than 25 v to the 2 transistors?
too the gate?
how long it will last?? you moved around the laptop with liquid metal on cpu and flip it over :))) after screwed back heatsink with damaged silicon barrier. After couple of months your customer will bring back the laptop with dead motherboard as liquid metal will leak on the motherboard through damaged silicon barrier. Didn't even bother to remove the logic board out from the case while using hot air :)) Good luck :))
hONESTLY I would have a stroke if someone like you would turn on my laptop with out CPU. I will ask you now to replace the CPU with a new one. Because i would never do this trauma to my CPU. who knows how much damage you did to that CPU? I though never turn on a computer with out CPU was a gold rule for every noob. But You doing that is mall practice. If that would be mines., I would had cried rite now and be full of rage. That was the only thing you was spouse to look after. Btw I know the laptop would had worked with out the mosfest. Why dint you tried that? Them mosfest are to do with charging. so since you took them out the laptop would had worked. Good job fixing it. But This is one of them things. why i told my brother to find himself a real job :)
hello we are back
Hello sir, I have an asus laptop similar to this one. There is no sign of life as well, it is brand new laptop, I am asking you nice would you take a look at it please? I am begging you … please …
🇹🇿🇹🇿🇹🇿🇹🇿🇹🇿🇹🇿 TANZANIA
We have a picture and I don't care to tha bad chips😂
The mosfets were shorted @15:45 when the Red Probe was accidentally shorted from power to ground on left side of charging port (watch tip of red probe and you can see flash/spark), that's why mosfets where blown...After further review I could be wrong. It seems that that red probe was shorted between power and ground for at least ten seconds as indicated by the second spark/flash @15:53 when probe was removed, during which time the statement "wait the power supply is clicking" was made. The PS was clicking due to the short to ground which may or may not have been the cause of the mosfet failure, Seems likely though. Good job. Good video. Thank You...
Charger ID pin is the new "little prick"
15:47 in you short something check the flash.
I can't believe LOL
15:48 minutes, when you put the probe on the port it sparks, so you blew the mosfet! Shame!
These rogues are nightmare always mosfet issue
36:19 "why those mosfets got burned?" take a look at 15:46 - watch at the red probe and see that spark. I will say something unlogical but I don't see clearly if you touched to ground or is it a spark of high 5amps current draw, but maybe -just maybe, you created a very high spike, which passed trough first two mosfets and finally killed two charging mosfers (laptop was off but huge battery was connected, so that two charging mosfets, draw all the voltage/current). I don't have other explanation - it is very strange case
Anybody interested in Starship IFT-3 🎉
Every repaire like movie😊
35:55
🎉🎉🎉
So much liquid metal can cause a short
15.45 you made a short while injecting voltage
It was short direct to ground won't cause harm to the mosfets
BEST FAKE CHIP SELLER IN SRI LANKA SVP TECK
Adspter is not suitable
repair your old charger or build a new one - No Excuses
You are the one who caused the short circuit at minute 15:47. Check the Video.
You'll know what I'm talking about
That was a direct to ground short at the DC input, it wouldnt affect any component on the board, Its more than likely what @zavokzalniy1 said about the BQ soldering,
Most likely the BQ chip was ok. The only problem was those mosfets.
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