Dell Latitude 7490 Laptop No Power Not Charging Motherboard Repair 

I love your confident laugh when you successfully repair something

I like that smile and joy on your face after your repair, this shows that you always enjoy what you are doing🕺🕺🕺...i learned alot from you (GBU)....

I love watching your joy from doing a good job. Awesome channel...one of my favorites!

You're good . I'm a computer engineer from Nigeria and I've learnt a lot watching your videos here on RU-vid.

I had yesterday the same issu with toshiba Laptop, i made the same but i let the jumper wire inside ..it Works 100% Love you from Germany

The best tech ever. A man who fix anything that has a circuit. Thx for all the knowledge offloaded

رمضان مبارك عليك يا حبيب. 👍🏻 والله يديم ابتسامه الانتصار ✌🏼😁

So Alex, the charging cable was plugged in when you were checking with the multimeter, right? To detect where the voltage was stopping and figure out the problem component?

You make the job looks like easy. Thanks your video are oasis

Your fault finding skills and work is " Better than Factory " all ways watch your videos to enhance my skills. Dave from UK.

Thank you for the Knowledge. I never Knew that the mosfet can be bypassed.

Youre a master my friend. Always watch your videos. Thank you for teaching us.

Yes MOSFET or driver. I would check instead with a 3V or 5V supply on the gate pin. But only if there is series res to the driver IC. Otherwise you blow the output stage. Most start today only with a battery present bocz there are unswapable.

What is the MOSFET's function anyway ?? Just curious.

hello i was wondering if you can help me my latitude 7480 was overheating so replace it with brand new thermal i did all of the proper safe procedures when disassmbling the labtop from wearing anti static wrist latext gloves removing the internal battery , cmos battery holding the power button down for a min to drain whatever power that is left disassemble the heat sink fan removing the thermal paste from the cpu gently and lightly as possible where i dont damage or scratch the cpu and video chip put new thermal paste and installed everything back and now it doesnt turn with or without the charger just now power idk what could be the problem all i did was remove the thermal from the cpu so i went back to what ive done remove the thermal off the cpu and video chip got a flashlight and a magnifying glass to thoroughly check the cpu and video chip and theres no scratches ,dings,etc both are fine ive been doing this for years this is the first time ive had this problem before i would appreciate it very much if you or anyone can help me and tell me what could be the problem my labtop is a DELL LATITUDE 7480 i7-6600U looking forward to hear from you or anyone here that can help me with this problem .

Alex you are a pure genius! Love it keep up the great work

This emon from Nigeria I just want to say that I love you job......🤳

its amazing and beautiful when you know how the schematics work and how to read it and bypass it :). Thanks Alex. BEfore you asked, my gut told me you fixed it and I was right, I felt your confidence and saw the solution in the next frame haha. Thanks - Ari

I love your technique for diagnosing the problem. I know you rarely answer questions here or maybe someone else can answer, What vendor would you go to and find a MOSFET like this?

I am working on an Inspiron 5755 thst I have worked on before and same issue now. Lady didn’t want to spend any $$ in it and gave to me. Taking apart I can do blindfolded. Have basic electronic experience and will see if the Monet here. This model year was known dot problems. But if can get working I’m ahead of game. Thanks.

Plz explain the p channel mosfet. The functionality of drain gate source. And the difference between n channel and p channel. Which pin voltage goes to the chip and which pin it comes out in each.

Nice, how fast you found the source of the problem! Respect

Love the satisfaction on your face when you sort out problem. May Allah bless you

Awesome video. I have 2 Msi of the same laptop. One won't charge. I'm going to troubleshoot it. It's been laying there for about 2 years now. With an Nvidia GPU collecting dust. time to learn Electronics repair. Thank you for the video.

I'm really grateful man helped me fix my motherboard thank you soo much

Wow, interesting... I'll try for check my Phone mosfet before buying a mosfet, classic problem for siemens oldphone not charging... nice idea of troubleshooting... Great job...👍👍👍

How you know if the signal on the gate of the mosfet is ok to let it work Alex??

“Let’s hope nothing is going to blow up”. Lol!

Nice and fast, thats just because of your experience and knowledge. Thx for the video. Greets

I really hate this light feature on the Dell´s connectors, but now I know in which situation makes sens. :) Like always, great job!

Those charging cables with the light at the end are very handy, it's more than just a gimmick.

That deep breath at the beginning was just like ok I'm over this already. Haha

My friend you are awesome, i learn something new everyday

Honestly the world's best tech👌

வாழ்த்துகள் குருநாதா ! செம

nail it like a champ! awesome job, Alex. 👍

Never missing a video so far, I was wondering if suppose we used the thermal camera on this case would we have found this particular mosfet issue, regards to all

how do you know if it's a P channel or N channel mosfet by looking at it?

I have a same model of laptop, and have a same problem with him. I try to charge over usb-c port, and it works. Now i have a solution of my problem. Thanks a lof lot for possible solution of my problem. Assalamu alaikum va rahmatullahi ve barakatuh brother from Bosnia and Herezgovina.

I have the Dell Latitude E7470 similar issue I believe, how much do you repair this issue? In my case the battery doesn't appear to charge and the computer will not boot, although it does come up to the BIOS and startup F2 F12 options. Power led on front is on when plugged in which is also odd.

i doubt its the mosfet, look at the blown capacitor under pin 1

I want to be your apprentice sir ... You are great 👍

Nice... thank you very much for sharing your knowledge, Sir.

The goat! 🥳🥳

Experience, knowledge, genius! 👍🏻

Love to watch you work have you start training yet

Thanks sir it's works but show message on bios charger not installed but on laptop in diagnosis unable detect charger

You really are a legend! True OG.

Superb diagnosis!

what if i decide to leave the jumper wire will it cause any problems

Very good video realy . Can you send me solution for my elitebook 2560p . No sound. All drivers is ok i dwnload from hp suport . The softwar test showen good . But no sound .the botton led always on orange color. I need the schematique of cart mere .can i upgrad to i7 ? and what is the best prosessor can i use ? Thank you

Some dell models have another problem, I'm not sure u have a solution for that, they don't power on unless you remove the internal battery and connect it again

Thank you! I could measure 0 V on the inside of the power connector, so I guess the motherboard needs replacement. This will be my third motherboard so maybe this time.......

I love Dell laptops they are synonymous of perfect design. Durable and great for work, play and study.Simplicity in functionality.

👍👍 Super fast diagnostic and fault resolution !!!

Hi vert instructive vidéo. Thanks

Liking your contents. Keep doing what you love to do.

stress relief video's.. thank you sir.....

What thickness jumper wire, is it fuse thickness?

Can we fix that laptop using jumper wire & no mosfet change is it safe to use???

I did exactly as you showed in the video, but after that the battery does not work, please help

Thank you for this Video!

Hello, I really like your work. I have a laptop problem. Can I contact you to solve the problem?

That was quick diagnose

I have the computer. What does a repair like this cost on average?

Hi my Dell laptop won't turn on. Of I press the power it turns the light on sounds like it's going to start up but doesn't then power light turns off and the fan. Help please

How to know the part number if the part is burn? Thanks

What if you leave it like this ?

That bappens a lot in the older Samsung laptops

Always check, fix to the maximum

Good job always.

Pro plesss backup bios dell 7490 "16MB plus 1Mb "

sir which micro scop camara u use

I love his sucess expression hahaha!

Nice job and video like always

Brother, i disagree with one thing, you did not lie, as lying should have intentions to deceive others. You did not know the charger was powered or not :) Rest is perfect as usual, thanks a lot taking time, and sharing your expertise, really appreciate that.

I have like ten LGA1150 motherboards with no power I wish to repair but IDK how.

Nice job my frand

Outstanding. #TheGOAT #BTF

so nice thanks

Ic is where available

Wow fantastic

Nice job 👍

I like this guy.

We are waiting for part 2

Nice fix

How many mosfets are in a laptop ?

Genius. 👏👏👏👏👏

Did he say it could be the Mosfet?

What is the use of MOSFET when it has just to be bypassing it?

good job bro

Very nice

كل الاحترام والتقدير لابداعاتك

Awsome video

Can i work to you sir i like learn hardware repairing laptops, computer pc or other else sir..

What will happen if you keep the jumper wire and continue to operate the laptop ? Is something gonna blow up ?

Amazing

sir i have a hp laptop, the problem is that when I use the charger, it gets very hot after one hour. Please give me a solution i how to solve

why don't you leave it that way without replacing the mosfet?

SIR I have problem with my laptop usb ports only power no data showing what could be the problem it’s my mobile repair shop laptop use for mobile software’s FROM INDIA