Asus C302C - Dead, a strange fault and design
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- čas přidán 25. 10. 2021
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you are really good at finding faults great job Sorin!
Smart motherboard?! No problem, we have a super smart master! Thank you Sorin!
Very nice video you sharing great knowledge and experience for all generations
Every video is a masterpiece. Good job keep it up.
excellent video for repair and great for fault finding tutorials :)
Thank You for this video.
Man i like this when sorin figureout some tricks 😁😁 bridges etc awsome !!!
Thank you, master Sorin!!!
Great job again 🤠
I have a Asus one these same problem did changing the battery resolve the problem?
I am grateful for your videos on many laptops you have done .
Happy new year keep the information flowing 👍
Interesting issue, first time seeing this on a laptop they're making laptops more complicated instead of relying on the charger in case your battery is dead you must buy a new battery just to power it on.. so a benchmark psu would save in this case thanks for this interesting video
Soon they will make single use laptops...
more like a phone/tablet
Very interesting video, and mpressive job
I have a dead c302c as well. Samy symptoms, all black, no charging light. Battery shows 8.7v. Could that be the problem? According to the specs it' should have 7.7v. Or is a higher voltage OK?
Nice one Sorin , what if you continued to charge the battery until it read 7.7 volts , and then tested?
Salut ! Iti multumesc pentru training ! Inainte sa te urmaresc reparam doar pentru mine si uneori vindeam acum lucrez cu clienti . In cinstea ta am numit Ers Constanta ! Sper sa nu te opresti din a posta video stiu ca ia mult timp ! Multumesc !
I've seen a similar thing when the thermistor in the battery pack goes bad ~ it refuses to charge because there's no way to sense battery temperature [safety measure]
in any case you (consumer) must pay, but all of this is for your safety, not to feed our greed.
@@lordred7462 even more if that happens in an airplane
Great job Sorin!
It is great that a laptop does check the battery and does not power on, because the battery is faulty.
Great stuff.
But what kind of idiot designed this without any indication?
No flashing led, no beep sound, no keylock blink, just nothing.
This is just really bad design.
this is throw away do not repair it and bux new one design
from your point of view it's a bad design, you're not supposed to fix it by yourself. The Asus folks will know quickly what's wrong and that what matters.
Manufacturers don't design their product for the customers to fix it by themselves.
something to learn, never buy a Chromebook
Was it only the battery? I had the same issue with an Asus Zenbook. They use the hybrid power supply which uses battery to boost the AC adapter in times of heavy load. The behaviour was exactly the same. In my case I've discovered a shorted 2nd mosfet on the input line. It caused the system to run only from battery and cut-off the voltage of dc-jack.
Hello, did you fix graphics cards, too? I had Charge every Cell till the get normal voltage. The Battery was nearly fully discharged in my case.
I'm sure that battery needs changing and then reset in the same way as refurbishment process. Possible apply some voltage to one of the data pins.
At 18:59 : top right - [000] SMD not in place ?
Yes, I saw that too. Sorin, go back and look.
I saw that too !!! Diagonally fitted
At 39:35, I have seen a 000 resistor very crooked above the BIOS chip.
Always glad to see new video. Also would love to see more helium updates and if possible more info on how exactly is working. I'm interested.
Soon, very soon :)
Very Nice 👍
Hello. Is it enough to bridge it and the laptop will run on the connected power supply ? Just like a normal laptop with windows
I got a dell laptop that turns off after 5 seconds. if i remove all the ram then it stays on, i've tried new memory already, any ideas?
Sorprendente!
Hello from the bahamas. I saw your samsung smt-800 repair. 👍 it seems rhat i have an extreme hot spot under the sliver cover just left of the battery cable. Or above the charger ribbon cable. Is the board fried😳😳 time to bye another one😳👍👍👍👍👍
So the battery becomes an important component for it to work.
I bet the battery is also feeding the cmos, not a 3v coin cell.
Its a tablet style circuit maybe?
Sorin, 18:59 Is that zero ohms resistor, (top right) supposed to be like that?
Looks like factory bodge lol.
Good looking
@@Alex-mj7km no that's called pcb recycling. You make one PCB for several models with options and you solder components depending on the options. That's smart.
So heating up those 2 chips.... did it do any damage?
Thank you for this very useful video. But I have a remark: She talks with the super i/o to tell her that she is dead but he also talks with the super i/o to tell her that she is full too, how will the battery stop in this case to charge?
you're not english native right? battery is female in french too :)
A simple fix woud be replacing the battery, Also the battery is feeding the bios. Interesting would be if it turn's on when battery is disconnected like on a tablet.
Sorin, ai cumva biroul in Romania? Am o problema cu un laptop Asus care nu porneste. As dori sa aflu o adresa unde sa pot merge sa il pot repara, abia a iesit din garantie.
in my opinion because of bridge you will charge battery too much mainboard will pomp power all the time to the battery bms from battery block charge because of the limit you have 2x 3,7v on minimum so should be 7.4 minimum after you cros 7,4 baterry wil wake up and start charge normaly without bridge
I jumped a MOSFET on a battery board in a Dell one time. And it brought things back to normal. By jumpering at the terminals is not tricking the bms chip. Go deeper in the the battery board, maybe it's fixable.
It may set the laptop on fire.
знакомый акцент) Заказал такого же красавца из Штатов как восстановленный. Пришел с подобной проблемой, но он работает от сети. При включении может несколько раз сбрасывать процесс включения. На этом процессе можно сбросить к заводским настройкам, но я не могу это сделать, так как он сразу сбрасывает сам процесс пробуждения ноутбука. Разбирал его, внутри все чисто, без гари и черных точек. Найду мультиметр и посмотрю так же как вы на видео, возможно что батарея тоже мертва.
При подключённой батареи и сети можно включить его и зайти в консоль, там сделать "тест батареи" и он ответит что батарея не найдена - и не важно подключена она или нет.
Спасибо за видео! лайк и подписка.
имеется такой и с этой же проблемой. вам удалось решить эту задачу?
@@user-fj2nn4sq3x Да, заменил батарею, все стало хорошо.
@@user-rw5ik6xd4n подскажите где купить нормальный аккумулятор, много вариантов есть на озон и валберис.
@@user-fj2nn4sq3x Сейчас увы, только озон, раньше можно было из США взять
Does anyone know shop address please 🙏
If you flip the battery over theres a mosfet, if you bridge the mosfet it works then. I fixed this same problem last week before seeing the video.
Sorin, please speak about what you're looking for, while you are checking things; because otherwise one (as me) gets lost seeing you moving hands back and forth.
It's not strange. It's just the manufacturer putting an extra check into the BIOS or power management chip to check the battery and if it doesn't hold a charge they simply don't let the laptop power on. This kind of trickery is common on cheaper devices to force people to buy a new one.
it isn't to force people to buy a new one. Batteries are dangerous if not handled correctly, it makes sense to cutoff everything if it finds a bad battery. Change it and you're good to go.
@@alexisfrjp Nope! It's there so that when it fails you have to buy a new laptop. It's called Planned Obsolescence.
@@johnbos4637 Not really since changing the battery fixes the problem. Programmed obsolescence is when you're stuck even though you change the battery. (=what apple did)
@@alexisfrjp Planned obsolescence is in everything even if you don't realize it.....
@@johnbos4637 He's right. If fixing the battery solves it, it ain't planned obsolescence
I personally find chromebooks a waste of time to work on
Batteries have always been causing problems with laptops appearing dead. I have a 35yr old Compaq SLT 286 laptop that will only power on if it has a working battery or no battery. If you have a dead battery installed it wont power on! I have put electrical tape over the contacts so the laptop thinks there is no battery installed so it powers on.. I also have 20yr old laptops that do something similar if a CMOS battery has no charge.
I'm pretty sure I have this exact labtop and I'm running into the same charging issues. I have to charge it with a low Amp charger
Think that is strange I have the same thing going with a HP laptop.. I just leave it plugged in since I do not use it much at all.. At least the battery is what I suspect though I am not near as good as you are.. But what the heck eh?
BMS locked battery?
I've been following you for years, never seen you can't fix something.
What do you mean he can't fix it , he did the battery is bad .....
@@stevejosrph6065 can't you properly read it?
Take it easy, Stave just needs a jumper wire. Lol
❤
18:58 000 resistor not in place ???
Weird looking but probably a design change
Based on your lessons about batteries :
It is rated 7.7v and 4920mAh and when you charge it with the PSU it goes to 6.8v then the internal resistance is low and the battery is good. Just remove the bridge and charge it from the PSU.
You are right, the battery looks like new based on what internal resistance iv seen there, but, the battery is FLAGGED, that's mean it's disabled, it will never charger and it will never supply power again. I suspect, they start flagging the bateries too early on the battery life, probably to force u buy another laptop
@@electronicsrepairschool Many thanks for your replay, also the battery have a protection chip.
Master Yoda strikes back
Nothing like rendering a device useless if the battery doesn't charge. Why not just let it run from the AC adapter? So many people will trash it and by a new one...and the landfills with e-waste will fill up faster. Earlier laptops the battery could be replaced easily now they are buried inside.
👍👍👍👍
Same as dell batteries.Dell puts an eprom into battery and if no voltage on cells or if you cut connection from cell to eprom then battery never works again even li-on cells are good.i think asus did the same thing on their battery control unit and it's killing itself.probably new battery is moore expensive then a second hand working that laptop one
Most of these computer manufacturers, are making the computer like a match, only good for one strike.
360p?
360p Translation: spinning your body around while urinating.
18:59 did I see something strange? can you spot it too? 😅
😍😍😍😍😍😍
13:00 how do you know this is the power rail? you're touching a random smd component.
if you board circuit daily, then it's not some random smd component
Sir that was great. Please upload another video how to Repair Samsung mini hi-fi system that has only sound problem only rear chenel.
Great, really great 🦾🦾🦾
Is the dead laptop part of the script ? I find it quite interesting that the SAME virus/situation happened to TWO separate computers, almost six months apart ! Can anyone say.... SABOTAGE ?!?...
Thats a tricky fault. I don’t now the MacBooks fault. So I don’t now where to start. Or to look 👀. So bad battery can kill the laptops 👨💻 but why what …..
I know you know what doesn't work and you don't work like you do today 🧐 ps briefly to the power supply to charge it 😁
my favorite dentist love your video
Chromebooks are not normal laptops they're glorified browsers
I do have a iPhone 6.. still working..I changed the battery.. but it will last for 30 minutes....why? Because you can't find a good quality battery.. you have to buy a new iPhone... and this is how they are making billions...
fazit: den designer des chromebooks sollte man entlassen...😎
The Chromebook is just like mobile phone, it requires power on the battery connector to turn it on. Yeah it is a bad design.
I was yelling at my screen, it is the battery, it is the battery, apply power the battery connector and it will start!
First :)
Sorin try to reverse engineer this laptop. Try to make it work from chrager directly like normal laptops.
yes, he tricked the laptop 😂
Second🥰
Not a Laptop it's a Crapbook
Normally if it was simply a battery problem, laptop should still power on when plugged.
Hmm.. this laptop suck; it is designed to fool the user into buying a new laptop.
it's a chromebook, like a tablet, not a real laptop. Also that's a security measure.
360p? crap
Upload is in progress, just wait for HQ.
i have 1440p :D
i wach on 2880p. Amazing
I know you are really busy but it would be really nice that after few moths you would reply with email back saying yes or no to the email, if you have trust issues i can hand over contact details in private.