Lenovo Yoga 920 Customer replaced the board and the board died, what went wrong?
HTML-код
- Опубликовано: 2 авг 2023
- Ebay store: www.ebay.co.uk/usr/sorinelect...
WebSite: sorinelectronics.com/
Patreon support: / electronicsrepairschool
RUclips Members: / @electronicsrepairschool
Forum: forum.sorinelectronics.com/
Discord: www.sorinelectronics.com/discord
My tools: www.amazon.co.uk/shop/electro...
PayPal me: www.paypal.com/paypalme/Elect...
![Sean Rii, Karyon, Sharzkii - Taungule [My Love] (Official Music Video)](http://i.ytimg.com/vi/eJoMuypbSzQ/mqdefault.jpg)
You should make a tshirt with the motto. Front: removing the capacitor, replacing the capacitor? Rear: No capacitor, no problem!
Good idea, but a better T-shirt would be: "No Capacitor, no Cry."
Fun to watch and informative. Love your conversational style. Nice editing and post production work as well. Please keep making these videos.
Sorin, I think it's time you invest in a pair of hot tweezers to make your job easier in removing capacitors. As always thank you for sharing your knowledge your the GOAT.
Haha. Cmon Sorin. You and me both know we both did the old ebay switcheroo back in the good old days. But like you we both help customers now.
Love from India 🇮🇳 sir, by watching your video I got more knowledge sir
I'd thought the aluminium (not Aluminum), back shorted at those spots in the graphite heat-spreader by piercing the thin sheet and shorted the capacitors, the welding heat shattered the capacitors.
I'd prob put a sheet of 0.5mm plastic or tape over the spot as a preventative.
It'd reduce cooling by a small amount, but it'd last longer electrically.
Didn't Sorin do a continuity test and proved that the plastic wasn't shorted to the rear case?
Soft laptop bag with charger and/or other accessories in bottom pocket pushing against aluminum bottom on Lenovo Yoga equals mechanical damage to motherboard components.
This is a poor case
Great Video sorin ...to the point as always .
Good job for fixing the back cover
I like the new camera
Good job mate 👍
On point as always😊
great video Sorin. i like the verdict for the new board. it must be a potential waste of time venture
great video as always. whats your multimeter name please ?
Nice job
I noticed there was aslo a noticeable dent in the back cover in the lower left corner. I wonder if they were resting the bottom of laptop on the edge of something and the pressure of the using the keyboard cause the bottom of the laptop to flext and short the caps.
In order to avoid damage of components, every laptop user should acquire a high quality robust laptop tray.
Sorin:,Atten has a nice pair of hot tweezers : Y9100 and GT-N100
The bottom cover looks symmetrical front & back, so looking like its only the black non-conductive stuff on the inside of it to tell which way round it goes. I wonder if the customer ignored or didn't realise and put the case on the wrong way round?
Great to see your thought process as you fault-find another laptop :)
I've had these boards in before with the caps smooshed against the underside. Poor design once again by Lenovo.
Can you tell me why he didn't replace the capacitors ? Aren't they supposed to do something ?
Yes sir Big job
Well, you are right but in my country if you go to a repair shop even if the motherboard can be fixed, they will say no chance so you can buy a new one :)
Don't come to Besiktas, Sorin...Because too hot...Run for life...
I was soo hoping that you have to do a CPU swap!
Dang, now I want to fix the other board 😅
11:14 upgrade the back cover plate for factory
I have a Chinovo T570, and almost every one of these has a poorly soldered MB - SSD fpc connector.
Well at least you have a happy result! It was starting to look like no fixes where available for several laptops. A question, you did a vlog on what procedure to follow on all laptops, check the power rail and find the 3.5 or 5v one that feeds the chip/ cpu, yet I haven’t sen you follow that sequence, or reference that you have already done this, perhaps a bit of clarity would be good and as all techs say, it’s continuity that is important, wether ultimately needed is another case! 🫢😉 capacitors? It’s from Shakespeare to be or not to be!
I think of it more as a checklist, not a procedure. Always good to check for short circuit on main line and resistances on coils. Only then is the voltage should be checked.
As for the lack of capacitors - I don't like it.
It's funny until it starts to drive you crazy. Yes, it will work 99% of the time. But from time to time it will throw errors that another service technician has no chance of finding...
Will you please share the link of that vlog! Thanks!
Thenks to seeing video'😊
check if secure boot is enabled
"No capacitors, no problem" - Sorin 2023 😀
wow, we will see this is become a common problem for this model. 😅
i love it 😂 no capacitors no problem 🤣
Salut Sorin, Imi poti recomanda un stereo microscop ? fara camera video sau alte accesorii, unul optic bun. Multumesc !
Hi Sorin , when you are measuring coil or ceramic capacitors by multimeter tell us how much we have to have value on them normally. and for example, less than this value is shorted thnx
i't hard to tell for shorted. (usually Sorin tells: "this is probably OK/ shorted" - because he estimates what the value might be. The size of the coil, or a gaming laptop, which year of manufacture, what power ...) And when i'ts OK you can read from screen.
@@wojciechbajon thankyou
its a yoga laptop, i guess the laptop had a design issue. when user flip it 360 degree, back cover pressing internal component that causing mechanical failure.
Can you bypass activation lock of my ipad 9th gen .? Thanks
19:30 Thermalpad? Really? Where is the big Blob of Hotglue?😂
Lenovo needs to recall the whole model! Terrible chassis design.
You could have tried to see if the good motherboard just worked without a battery. I was curious about that.
(4:57) Cracks in the ceramic body of both capacitors on both PCBs?
(10:12 - 10:16) You touch them lightly (slightly) with the tip of the tweezer and they crack?
Oh! I can assume the quality of the construction material of those components that the manufacturer used.
(11:43) Similarly reasoning...does 1 in 10 (10%) of the bottom covers for that particular model and manufacturer experience this problem? Another way of saying it: Is it just this owner that this happens to?
Thank you so much for sharing this kind of repairs... it makes us think! I am happy for both (client and you) and I say that with absolute sincerity. Greetings.
@MrTGuru Yeah. I accept that. Exactly. In this case, those two MLCCs (Multilayer Ceramic Capacitors) 10uF - 50V (both) size 0805, even if they had been from the best manufacturers; of course there are, some with decades building capacitors, they would not have resisted. Thank you very much for your answer (you place me in reality). A fraternal greeting to Australia and I say this with total honesty. All the best from Mexico.
P:S: With that avatar you use! You leave no room for confusion. I like it!
May be...
👌👌👍👍
Did you replace the caps or Just removed them?
No caps no problems :)
No caps, no shorted caps :D
@@electronicsrepairschoolhahaha how does that even work 😂😂
It could be the first mosfet on the other board
The Bitlocker key is stored in the BIOS. If you update the BIOS, you will need the recovery key. When Bitlocker got turned on, it told you to print and save it safe place.
Bitlocker keys are stored in the TPM chip and it will be on the other motherboard.
@@retrocomputinggrottoCorrect.
Bitlocker recovery is only prompted after a BIOS update because the TPM (or fTPM) has noticed a change in the system and will no longer automatically release the decryption key to the OS without user verification of the change, via recovery key.
@@retrocomputinggrotto , good luck updating your bios if you don't have a copy of this key. Just warning you.
The other board usb c ic must both be replaced . If one does work both will not work. U must replaced bout usb c chips
the ceramic cap can be cracked. i see this in many video
That is not a nice laptop.
Customer probably just kept the laptop on his lap and the capacitors got broken inside.
What do you think about dropshipping on ebay buisens
Maybe the new MB was actually 2nd hand.
I don't think any big hardware manufacturers just sell you new boards for you to use however you like. Framework probably does
Bit locker is on the drive not the motherboard, If the owner put in another drive and installed the OS of his choice the laptop will work fine. It won't boot because the Bit locker is on his boot drive.
The bitlocker key is stored on a TPM chip on the motherboard.
@@retrocomputinggrotto The bit locker locks you out of your drives containing your data. I have replaced many drives and returned laptops and desktops by simply swapping drives you lose your data and anything else on the drive but at least you use the system. if the bit locker is on the system drive your locked out. You also try terminal and there you will find the drive containing the BL.
@@davidbates2161Everyone knows that. In this case the customer has had this happen more than once, so they likely have the recovery key.
Once they enter it and boot back into Windows, the decryption key will be stored on the TPM again and unlock automatically at boot.
No data loss.
@@incandescentwithrage Yes I agree, but this has happened more than once so there's a good chance that he doesn't have the recovery key. If he knows the commands in terminal he can recover the key but most people do this messing around with there systems and not writing down the key or just forgetting it. Also some hackers can get into your system and put a bit locker key so the victim has to pony up to unlock his system. Sometimes replacing with a new drive is the only choice you have.
Maybe the customer did not smash the laptop but he is carrying it in a case where it gets comprimed to other stuff in the case.
How strange, haha, what are the chances of the exact fault 🤣
no capacitor no shorted capacitor 🤣
as an electronic engineer i still din't agree with not replacing caps. In times when maufacturers save every 0,001 cent, they have a purpose.
One time you're lucky and has no effect. One time the effect can be seen under load or even in idle. And you don't test those devices under load.
That's why i like alex from northridge fix more. He even has a SMD cap-book and replaces all the caps because that's what a good repair differs from a dodgy one.
As an electronics engineer myself I totally agree with you. Having worked in the Electronics manufacturing industry for huge corporations, those capacitors will be there for a reason, they would not fit something unless they absolutely had to as each component costs money. An issue may not be immediately obvious without those components but they are doing something. Either decoupling, filtering, EMC purposes or to prevent RFI.
but its good to buy a new one its they engineered to be cheaply made and flimsy
Maybe those capacitors were for planned obsolescence 😂
What a butcher, the owner gone crazy with thermal paste
Noice
Hello 🤝👏👏👏👏👏👍👍👍👍👋👋👋👋
Those USB-C power connectors on Lenovo laptops are the most dumbest engineering/accounting mistake I have ever seen. The USB C port breaks easily and the internal "board" wears out easily (T480/T495/T14, etc). Had so many with them and it is not a warranty-related damage.
OOOh, does that USB-C device help with seeing if there is over-voltage/current? Had a Lenovo Yoga that destroyed two NVMe enclosures (we use for installing images). Smoke was coming from the fried controller in the NVMe enclosure. Thank goodness it did not destroy the drive.
hi
Maybe the factory did the damage.
wow , you found manufacturing fault
haha
no capacitors no problem
Laptop sac de box.....
Hello sorin , im fisrt lol weres my duck ?
🦆))…👈 😅
Its called Lenovo.
That's French for crap
5:37 !!!!LOL¡¡¡¡¡
11:19 !!!MORE LOL¡¡¡¡¡
Lenovo makes poorly designed junk.