Lenovo E15 A UNIQUE fault, probably can happen only with Lenovo :)))))) 

I had the same issue. The QB5 was not properly soldered there either.

No capacitor = No burned capacitor 🤣😂

Do you remeber when i said about this fault on your sunday live video? It was last year, few months ago. The problem comes from tps65994ad. Let the laptop few minutes and check how hot becomes on that area because of the mosfet - does not get the voltage on the gate to fully open.

Mr. Sorin, this is just crazy! I swear, this is like the 3rd time I see the same Lenovo laptop with the exact same fault, the exact same MOSFET. Seems like Lenovo is doing this deliberately.

"we have the picture 🤷‍♀. i can't belive" 😂😂

Nice repair عالی بود ❤❤👍👍👍👍👍

you need the replace TPS65994. If it's not changed, this malfunction will happen again.

The blown up capacitor is a 0.1U_25V_K_X5R_0201 and the missing one at the position over it is a 10P_25V_D_NPO_0201

You know what is insane? That the algorithm gave me your video in the feed right after I bought a Thinkpad E16 gen1. :D

Nice sorin😂 it's working my favorite

Hello Sorin, once again you surprise us with your wisdom and professionalism. It is incredible that equipment of that level has poor quality in the welding of its equipment as is latent in your video. Like always, thank you.

Waoww, in my case, it wasn't off ,I just reflowed the same mosfet ,laptop up running fine ,

it would be nice to have that thingy for showing power draw but for barrel jacks not just for usb-c

Amazing, loved it. I enjoyed following your analysis and deductions, you were like a detective, and then you peel the tape off and it is like the criminal left their calling card! I hope you enjoyed your payment of two USB-C connectors :)

That's crazy!!! Factory didn't affix the mosfet properly....

24:17 that was a comment on recent acer nitro 5 video 😂

Factory lead free solder causes so many problems 💥👹 As for using SMD USB C sockets as charge ports.....Urrrrgghhh

yes. good video but no one mentioned that the mosfet was desoldered through normal use because the cooling from the motherboard itself is probably not the best at that point. It often happens when components are under a lot of stress and don't have enough cooling that they solder themselves out, slip or the flux is boiled out of the solder and the solder joint becomes brittle so it's important to use X Grade Rosin Liquid Flux underneath.

❤We got Sticked😮

Good evening.. I am very happy with this wonderful, brilliant content and the growth of sharing with you.

it happened to me with this same model, so i guess no quality control on Lenovo

Jsut before you did your charging trick the battery was charging with 2A

Great video! The new motherboard generation components aren't soldered, they're glued 🤣🤣

13:00 This happened when i ordered first time msata SSD from china it didn't work.. i thought take a look and when i peeled sticker off one capacitor came off.. i soldered it back on and it worked again!

What USB meter are you using in the video?

Lenovo was the best quality before ,after 2018 deep dive.

ThinkPad E......every thinkpad enthusiast lust left the building lol

Most likely the Mosfet lifted off from the solder pad/s because there was a dry solder joint/s, that will most likely explain why the laptop isn't powering on too.

My theory is that somehow that Mosfet didn't get enough heat when it was being soldered in place at the factory, those solder pads did look to me like typical dry solder joints.

Sorin, the laptop i fixed with this problem has the same issue, i've changed that mosfet again and it's charging again :D but i've noticed that mosfet is burning hot so i've changed the other on the side and still burning hot, i guess there is other thingy pushing to much of this mosfet right? maybe the mosfet controller? If this continues working like that in a few months i've to change the mosfet again, any ideas?

So I have the AMD version of this laptop and it will charge no issues the problems I am having is, even while connected to the charger while in use the battery depletes rapidly with in hours. Im wondering if this might be similar issue...

23:25 Electronic give a finger, take the whole hand school.

The 2 biggest "lies" that I believed as a little kid. "Santa Claus is real" and "we're going to replace the capacitor in another video".

3:42 HA HA HA! I will keep both charging ports! 3:)

Sorin the charging port Pirate 😀

lenovo laptops are always with unique issues

23:59 Press X to doubt

That's just Lenovo increasing the repairability of their laptops. No need to de-solder components.

they ran out of solder so they put glue instead.. so pathatic design!

Sorin, I have now replicated your repair in a video, just for you with my bad english :) please check.

Incredible Lenovo quality 🤣

Got my hands on broken lenovo 15g2, looks like same kind of problem - not charging or powering up from PD port. Didn't have enough skills to diagnose, so just soldered wires with external 2-pin connector to battery output and made my own charging circuitry with constant-current/voltage regulator (set it to safe 12.3V 4A) with old 19V power supply from other notebook. Now i have free i7-1165g7 laptop which is faster than my desktop, lol. Thanks, lenovo, for using wrong schematics for charging. :)

Hi Sorin, once I fixed some power-supplies for some avionics unit!!!! MOSFET’s was running so hot that they melted the solder. Their solution was to glue them down with lots of conformal coating!!! Turned out to be a design-fault, gate drive was too low, so the MOSFETs never entered their saturation-level.

How much should this coat me if i take it to repair shop

20:40 lol thats fkin funny. while u talk the current actually went up. no need for any tricks, just patience.

Here's a unique lenovo fault! The pc will randomly stop booting, It'll power on, but nothing happens and every light gets stuck on To fix it, you have to detach the keyboard wire, and the sub board wire. Wow.

So. Technically, my e15 gen4 is a ticking timebomb

Hi Sorin, that laptop will most likely come back. I had the EXACT same issue with this model. The first time i just resoldered the mosfet like you did and the laptop came back after a month with the same mosfet desoldered. After cheking with a thermal camera, that mosfet was getting over 200°C causing the solder to crack. At the time i just bypassed the mosfet with a wire, but now, i think the gate wasn't getting enough voltage and the mossfet wasn't opening properly.

have you ever fixed FUJITSU'S?IS THEIR BOARD;S GOOD?? AND THANK YOU FOR THIS VIDEO AND FOR ALL OF THEM OF COURSE

No Capacitor, no shorted capacitor ! ha ha he

Much of the assembly is done by robots. any faults should be found in QA testing. Most likely this is where Lenovo is weak.

"sexy fuse"

What is this device you plug into that gives all these stats for the USB C? Like a USB DMM pass through?

MULTUMESC, In sfarsit un raspuns logic. Luni abia astept sa ajung la birou. Am 4 asemenea laptouri, duse la service (vreo 3 aici in Bucuresti), de fiecare data am primit NO FIX pentru alimentare si incarcare baterii. Daca pun bateriile lor pe un laptop ce inca nu are aceasta problema, fiecare baterie se incarca corect. Daca readuc bateriile pa laptopurile lor, fiecare porneste si functioneaza pana se descarca bateriile. Dar, cele 4 laptopuri nu incarca. Mai am inca unul dar la ala, stiu ca e o problema de bios corupt si nu stiu ce sa ii fac. Ah, chiar si asa, cu biosul corupt, incarca bateria.. a lui sau a celor 4. Multumesc de idee si incurajare. Spor sa avem.

You get a lot of computer repair shop business - they can't fix it themselves - something is wrong but then you make more money that way

Good job mate 👍

no caps no shorted caps 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

its lenovo, the cheap copy will be better quality 😂 but they probably swapped half the pins around.

Great video, learn something new every time I watch these. Thank you Sorin for your continued efforts to support the repair community through your lessons.

TL;DW?

Chuck Norris is nowhere to Sorin because Sorin can epilate a motherboard. 😀

I'm losing my trust to Lenovo. Is there any alternative to thinkpad t16?

Lenovo quality control really went downhill on this , components stuck on the pealing cover.

LOL - how on earth can that happen?! Crazy. Saving fractions of a penny on solder so that sticky tape pulls off components.

No capacitor = no doggy capacitor!!! 😛😛😛😛😛👌👌

good job, regards

Thank You Sorin

it is very sad to say it but lenovo is most bad laptop for repair EVER :-( frst soldering is bad as see on movie.... also this glue under main chip ... almost unrepairable.

I need to go train in that next-generation soldering technique (AI) for Mosfets "invented" by Lenovo... of course if the training is not very "expensive"...

A wise man once said no capacitor, no shorted capacitor.

A better solution is to take a whole set of AC adaptor and a charging port from another dead llaptop. Not necessarily a Lenovo one. They all have a compartment in the case for the charging port nowadays. No matter what the plug is a circle or rectangle, you just solder internal wires and implant the port inside.

Bad quality control

So in case of Lenove, always check under shield if something is popped.....

Keep them rolling Sorin!!!! Good work

GOT THE SAME ISSUE :) Sorin, I just checked my database I had the exact same model, E15 Lenovo 11th gen on march 23th 2023, it has the same issue, it was barely touching the board very very very tricky as when I put my probe it was measuring right however when i stop measuring by removing the probe it does'nt make contact with the board. in my case it was the second mosfet starting from DC-IN!!! I described the issue as "2nd channel Mosfet badly factory soldered". When I found the fault I did a nice "I can't believe we have pictuuuuuure"

Thank you Sorin, you are top

6:45 am and I 'm watching this with cofee

you are just the god of electronics! Keep up the good work. Im a big fan!

Do you know where Lenovo keeps the hardware for the audio?

Wow! Really bad design/manufacture. Either not soldered or de-soldered by an excesive temperature, is a really bad design/manufacture.

Thanks for keeping the Thinkpad alive!! Watching on my P73 and hopefully I never have to dig into it myself haha

Dear sorin.Probably the mosfet will come off again. The PD controller is faulty, gives to low voltage to open the mosfets. They will open but with higher resistance and overheat

Yeah, seing it all the time...cant belive thinkpad is that bad nowdays

24:09 "No capacitor, no shorted capacitor." 😂🤣👍

🤗 pictuuure

Wtf 😮 super glued mos fet, no way this factory 😂

The future of technology is unclear, if we continue on this path soon we'll be thankful that the new products will last at least one month after purchasing and hope that the components don't fall off from the device while unboxing... P.S. Very bad quality control and negligence from the manufacturer in this case.

@Lenovo you look like you need some flux.

In my experience using many brands of laptops for decades, Lenovo are the most reliable brand and it's not even that close...I had a a few Toshiba's those were good....Sony no HP no Asus no Acer no Dell nooooo LOL

Would the laptop work fine if there was no battery ?

Sorin, your the Big Brother of computer repair.

Maybe was a quick release mosfet 🤷🏼‍♂️

A brand new laptop? My mistake! I thought this model was from 20 to 30 years ago! Am l out of touch!

awsome ! i wish i would have learned this profession - i could do this day and night - working on tech - i´, in IT - system admin - in my free time i did Overclocking Battles - was 3rd palce for 6 Month with 3Dmark03. Did a lot of CPU Mods with pencil and other stuff ( Athlons,...) ... i love to see you working - its releasing and valuable learnings are included - ok this was a long thank you - anyways :))

Lenovo is the most crup companie ever exists. But IBM ThinkPad are the best laptops over there....look what they did to that companie😢

i sent you $ with paypal link you provided in description , wich is great for me , Big Thank You for your videos and for Helping US to Learn !!!

I hate Lenovo so much.

This is an older laptop. (Not!) Could all or part of it have been hand-soldered at the factory?

😊😊 I'm amused at what Sorin laughs at.