Asus G56 gaming laptop - no power not charging - Dealing with fake chips from ebay

[@zyxnull]

Sorin, beginner videos are frustrating, because beginners always get this kind of jobs, to be honest, seeing you struggling with this kind of repairs is a lot better, we learn a lot more from this

[@ichabodcrane7988]

Sorry to complain Sorin, but if you edit your videos much more, it will soon just be hello and goodbye! Every time you come back after an edit the work is done and you just describe it! I've watched every video you have ever made over the years, excellent tutorials, really solid teaching. Enjoying the fact that they were long videos because you showed every step along the way, good and bad! I think you may well lose viewers if this carries on, I'd hate for that to happen It's hard for many of us to follow what you do nowadays, The whole style has changed - sadly for the worse! "Please" go back to your unedited style I really appreciate all the work you've put into your channel over the years, Thank you so much for the knowledge, you've helped so many people understand! Stay well.

[@dogosrobi]

It was just a year ago when he mentioned that he doesn't like editing his videos because in his eyes they then turn into fake :(

[@ichabodcrane7988]

@@dogosrobi It's sad really, Sorin was the one person you could always rely on to show the job exactly as it is, mistakes and all. I will still always watch Sorin working, he does excellent work and he's a really nice, honest person . Plus I love his sense of humour, he also cares about his watchers and wants people to learn. I'm always rewatching Sorin's older tutorials - I just enjoy his way of teaching! Sorin's the man! Seeing all the small details, even on repairs I've seen him do many times before, it makes no difference. Sorin is just brilliant at what he does, long may it carry on. But more like the old style. Please!

[@DanielsGameVault]

To be fair, I don't think the track between the gate and the BQ chip just "broke" like that - there's probably a resistor in series between the two that went open-circuit or out of spec when the original FET blew (although this may not be the cause, because for the resistor to blow there would have to be quite a bit of current sunk sunk by the gate driver pin of the IC, which would've also killed IT, which was not the case - you put it back and worked). Still, this might also explain the jumping resistance you mentioned.....just a thought....

[@chavsi8173]

Thanks Sorin, always learning so much and having fun at the same time best channel to learn electronics

[@electronicsrepairschool]

Thank you

[@albanusalain]

This kind of situation which actually precious as experience. Thank you

[@randyr.parker2698]

@electronicsrepairschool That's OK Sorin, we STILL learned something, we learned to check the tracks from one chip to the next BEFORE condemning the next component in the circuit. Quit apologizing for the way a video starts and ends up, we enjoy and learn from everyone of them! 😉👍

[@d4rk5tar97]

I like the old format where you guide us through the electronic maze , thank you for share Mr Sorin

[@simoaz8069]

Thank you sir, now we add a new step to check before attacking the BQ which is the track from gates to ACDRV

[@Radek__]

5:44 if you lower the voltage on PSU (and you have the issue with main power rail) you should set maximum voltage, which is allowed for CPU/GPU (so lets say 0,8-1,1V) Because if the high transistor on CPU/GPU powerrail side is shorted, then your voltage from main powerrail (from your PSU) will be injected to CPU/GPU (and 0,8-1.1V will be safe) But you've set 3.0V, so in rare cases it can damage cpu/gpu (3.0v is 3 times too much) (I know that you set current limit, but anyway - you should learn people to take safe steps first)

[@laboratorioassembler]

Never use more than 1.1v when injecting.

[@mart43]

@@laboratorioassembler it depends on 1.1V (5x1.1V= 5,5W) is not a lot of power very hard to spot a hotspot without a thermocamera . Just make sure the high side MOSFETs aren't shorted then just inject 19V 5A (100W).

[@laboratorioassembler]

@@mart43 oh yes.. without thermalcam and new generation CPUs... it's hard to spot shorts.. right now a cheap used flir one can speed up work a lot

[@ServisTOPRO]

The chips may not be fake, but they are definitely not new. My theory is that they use some chemical that cleans the chip from the solder but causes corrosion on the surface. That's why I always apply new solder to the chip first to make sure that the chip is connected correctly.

[@predatortheme]

I think they are new, they are extremely cheap to make and you can get them in bulks of 5000s or 10000s no way would someone go throught the hazzle and pick them off existing laptops.

[@rubenmejia4881]

Lmaooo "i can't believe! What kind of sorcery is that?!" 😂 Sorin you are the best!

[@MilekaRobot]

Many people in comment say that they want old super long videos. Actually, I like this edited videos because unfortunately I do not have any more time for watching 2-3h video. Anyway I will watch that long videos but divided in 2-3 days by 30-40min watching :) It is good to make short and long to make everybody happy. Keep great work!

[@gatorgotme]

Thank you Sorin! I always seem to learn something new from you.

[@Swenser]

Im so happy to see that . I must get a lot of crappy chips. I thought it was me being a bad solderer but now i know its crappy supplier.

[@isolance1]

For me, the first step is continuity check on main power plug on the notebook side. I'w seen way too much shorted reverse polarity protection diode/fet, first main power fets. Its easy to check withouth takeing out any screw. If it's shorted, i have a clue about one possible problem. Also i skip to plug in PSU if main is shorted. This is my personal preference, maybe iam wrong. But I always try to be at least intrusive as i can.

[@user-tt8ok1wv4h]

Great video, crazy fault but you managed to find it again. I read comments saying your videos are hard to follow, i can follow them no problem sorin 👍

[@indomitablereasoning2875]

Brown noses!!!

[@carlos-xt9qi]

Very awesome, great job Sorin 👌👏

[@lucymc0191]

very interesting video sorin ..as always you figure it out ..better if you have shown whole procedure but i know time is of the essence and you think its boring ..which i appreciate ...

[@DumaJo]

Nice one, it probably burnt out due to shorted mosfet, luckily it didn't kill the chip

[@RainMan_Swiss]

The reason of why the solder is not sticking to the IC is because oxidation of bad keeping case, seems a poor quality and care of the seller, j have found may like this! Thank you for the nice cases you expose here!

[@BootedTech]

14:48 - 19:12 | That was hard to watch, why you not clean and prep pads for chip first? I have never used that technic of soldering the QFP chip before, I always use a soft wire brush to clean the pads prior to soldering. I am glad you figured the problem and fix it.

[@marksutherland774]

Nice to see Sorin himself can learn from his own videos.

[@jxmai7687]

so many brands and models with so many different faults, every day can learn something new for everyone, this is why we love this channel.

[@jamesthomas2417]

yes as the gentleman said before the resistor in series between the gate and pin on bq chip change ,who knows , but the challenge keeps you on your toes , when a duck is not a duck regards jim

[@omgyeahisaidit129]

Sorin: I love your videos and have learned a lot by watching, however I have one question to ask? Have you ever received a laptop to repair that was not "A Nice Laptop"....

[@markkay8117]

:) Are those chips bought on eBay really fake? From what I see, original power management chip was placed back, because initial problem was with the faulty track, not with the PM chip. Did Sorin test new chips, after the initial problem was fixed? Did not see that in the video. The reason why solder was not attaching to the pins of the chip comes from long storage times. Ideally chips should be stored sealed in the bags.

[@orange11squares]

indeed , probably the chips are just old but good.

[@iranfreedom12]

Can you do some videos regrading when 19 volt is present but there is no 5 and 3.3 volts? What should be checked and how to troubleshoot?

[@nihilman6052]

Thank you for your share. Always learning with you!

[@memorywarrior8752]

that's another one for the Sorin soundboard: "This is a niiiiiiiiiiiice laptop"

[@makrisg21]

tanks sorin

[@thedogbarked123]

That’s the same problem I had. It’s like WTF. I tried tinning the pads but nothing... eBay chip.

[@rubyy1302]

i bought 6 Bq24780s , only 2 chips worked. i soldered unsolder like 30 times .

[@robertmay2665]

Hi Sorin, I have a very hard time seeing your mouse pointer on the screen. Could please increase the size or make it dark for for us, thank you.

[@GregM]

Amen to that. Its a tiny white mouse on a white background that I am hunting to find on my monitor.

[@Pirelli.]

That was a hard one, but with a happy ending! ☺

[@VanDuc1126]

Should be remove corrosion protection layer on surface of new ic before solder.

[@cazi7244]

Hello Sorin, it is sad, that you don't show us, how you rebuilt the position for the MOSFET 😢

[@nathvanvolsom5213]

Good job.. As ALWAYS 🙂

[@rfr653]

Good job mate 👍

[@Abdallah.795]

Our leader always thank for u a lot ❤❤❤❤❤❤

[@mudassirul]

Question: if an IC is welded - is it a good idea to grind/dremel the Ic off to try and save the traces?

[@KyleSand]

Be careful not to go too deep into the board

[@jxmai7687]

try use hand tools for have better control.

[@user-pe3yi7hn1s]

"Two days later", thought I was watching "Sponge Sorin Square Pants", LOL

[@sparepart_laptop]

Saya suka video ini

[@hssnov]

Amazing fix. I think the owner of the laptop he bought it from ebay broke and sent it to you.

[@mixmits8767]

Like before I see it ! greetings from Greece

[@soyyo3037]

Foarte interesant video. Care e echivalentul de la BQ735?

[@testingtester6908]

Good ol fake chinese chips

[@jaym5938]

Yeah, as obnoxious as fake U.S. parts and people

[@Arvidje]

irritating stuff.. should be punished

[@dimitrisdelimpeis7382]

Hi Sorin..in a bit confused about BQ does not know the charging current....as we can see in diagram @12:54 there is a shunt resistor to SRP and SRN pins which are charging current sense pins...so what exactly am i missing?

[@electronicsrepairschool]

He's checking the output current instructed from EC/SIO chip, otherwise doesn't know how much current is pushing out

[@Swenser]

I think that's input current into laptop, and not battery current.

[@user-ry5ei2qi7n]

like cheap wires the put aluminium with coper and solder not even touch it

[@tim0steele]

When the MOSFET burned the board it probably damaged the tracks nearby..

[@ericjarvie]

More dodgy parts come through the post but got to say that 'tinning' the chip with solder was an clever move but what was preventing the adhesion in the first place or are the Ebay chips really that fake?. If so that's an disgrace somebody should report these people to trading standards...

[@chumatez]

Nice one 🎉🎉

[@pleo9215]

Every single laptop is a "Nice laptop..."

[@flrmistermechanic]

genius

[@Abdallah.795]

How can we know it is the bq chip how can we find it on the motherboard

[@GlishaSo]

just dirty chip maybe to you clean it with alcohol before first attempt to it will be all good ?

[@vlasta74]

Beginers video go wrong, hahaha, good video.

[@kpelectronics]

You need to work with amtech flux

[@paulroberson5094]

We're can I send you my laptop to get fixed I have a Asus gaming laptop that has no power

[@paultax5710]

What would be the harm in just bypassing the mosfet?

[@jxmai7687]

There is feedback circuit with the charging controller chip and also data signal connected to the main controller chip, if the signal is not right, won't be able to change the battery or start the system, only on some old cheap laptop may work, now it is less and less.

[@IFIXCASTLES]

Unbelievable!

[@OTHMAN_OV]

why you didnt jump that mosfet if the point is to let the 19v go through ?

[@orange11squares]

that is the old way, now he is replacing the mosfets :))

[@giuliocarlini6681]

How can you understand the both new chip were faulty and the old one was good?

[@billyjames9861]

He knocked a capacitor out of place or struggled when he replaced the mosfet, then bridged the track

[@NRPAUL-pr9he]

YOU NEED A GOOD MICROSCOPE, TWEEZERS, CLEANING ALCOHOL

[@DumaJo]

Could you help me out with one problem, i have an Asus Tuf FX705DY, had a shorted cap. After replacing works fine, but the battery wont charge, it shows it has 100%, but as soon as disconnected goes out. I do not have another battery to test, can anyone figure out if it the battery or board issue

[@asankasanjayadesilva9628]

Battery

[@DumaJo]

@@asankasanjayadesilva9628It shows in batteryinfoview software that the battery has 84% original capacity, my guess is it got disabled due to shorted cap... Am i right? If so, is there an easy way of enabling it?

[@sul9460]

nice

[@icommandoi145]

Voltage in the Air, hahaha.

[@teslasapple]

Dodgy eBay cowboys 🤠

[@Knebebelmeyer]

did someone notice the spark at 7:05! this should not be happens!

[@aliemlek]

👌👌👏👏

[@boogerhead0]

TI is the place to get those...not some chi junk house

[@kroks06]

beats speakers

[@aso8446]

most spare parts manufacture in china thats the reality

[@stintus1]

Don’t ever buy chips on ebay

[@lucataszarek8782]

Hello 🤝👏👏👏👏👏👍👍👍👍👍👍👍👋👋👋👋👋

[@TotallySearch]

Gaming laptops are an L but this guy is wholesome

[@MrDinakdakan]

why oh why chinaa, this is good feedback aliexpress seller? just waste technitian time

[@philmarc2118]

😂

[@djminddrum]

First

[@vegapiratradiovpr425]

10:13 that is NOT resistors!