Two Dell laptops repair, but the second one is the most nicest laptop i ever seen 

loved the suspense, it was like a thriller movie. AWESOME AS ALWAYS!!!

Time to upgrade the channel name to: Electronics Repair University.

wow 3 videos in one day that's a gift from heaven

Dear Sorin, I am watching you from Hungary so we are kind of neighbours, greetings from here. I just want to say thank you for your videos, what I watching a lot and these are awsome. I bought some stuff to repair myself, also built a power supply myself, now learning electronic from books and online. I just would like to share my first 2 succes. A laptop, no charging or turning on, succesfully diagnosed a faulty dc/dc step up converter, so it is fine now. Second one is a Gopro, water damage and no coming on, cleaning, isolating everithing with self made liquid rosin flux as you tought, I have found a short on battery board, which was succesfully found and treated. No it is turning on :) THANK YOU!!! And keep on!!

Mr Sorin is my electronics Mentor . I started making small Guitar electronic repairs at home (basic stuff), and now I run a small bussiness . He's not the best electronic tech in the world, but his huge experience and approaching to find the issues, makes you believe that you can also learn do it by yourself and improve what he taught to you. He's a master teacher and deserves a big respect for me. hugs from Portugal !

Amazing as always. I've never seen so much love for for a man whose channel isnt about sugar coating or mushy feeling things. Yet video after video us geeks, nerds and enthusiests keep being amazed and educated while feeling comfortable and not left out of what is actually happening. When he takes a call or goes to find parts in the shop, i feel like im there and am perferctly fine with waiting. Any other channel i would have left. I'd like to think i was his biggest fan but i think we all hold that title. My god and savior, Sorin. Sorry for my spelling.

I bet everyone here says "Hello" right when the video starts I caught myself doing that lol Sorin is the Greatest !!!!!

I'm so glad you faced this heating problem with the soldering iron you can't imagine. I've been struggling with the same problem and really enjoyed to see how you dealt with it.

Ești foarte tare... Spirit roman... Muncim cu zâmbetul pe buze și radem și glumim... Și rezultatul e uimitor. Și eu sunt tehnician și ma amuz în fiecare zi cu tine pe RU-vid. Bravo

Hi, Sorin, Hero of the Universe! Central pin on Dell chargers carry a 1-wire signal that decodes to charger wattage, serial number, etc. Sadly it´s not just a "high signal" like Hp´s.

My Mentor, sir I just recently picked interest in Computer Repair, and thank God I came across your channel. You're a gift

this last one deserves a big like. very inspired by your passion. i have now a power supply because of you. thank you for everything. elbow shake from portugal. give my best to Diana. our women have to have patiente to us (electronic technicians)

took me at least 45 min's just to open, my first time with that model. completely focused & without an audience. very modular, nothing like it outside of certain gaming laptops at twice the price. thanks for the walk-though, wish I had you years ago! ~v~

I would recommend the Hakko chisel tips (D-xx series) or the flat BC ones. The shape of the bend J-tips is sometimes nice, but it's tiny tip is very bad at bringing the heat to the board. The only way the J tips work for me is by using the thick curve on the back. There are also two J tips...a bit shorter and a longer one. The shorter one is a bit better than the longer, but they're both far away from the performance of the D or BC style tips.

The M6800 was the top of the line for DELL It even has upgradable CPU + GPU

This is absolutely the Dell thing ( not charging properly without the genuine charger). It's the way they "protect their produts". The funny part of everything is that they actually do have some 3rd party production called XRT. They are dell approved and these are the only ones (as far as I know) that are working the same way the originals one work. Thank you for the nice video Sorin

Thanks Sorin. Still watching your channel. it's Amazing.

the end was cool burn ;D

THE BEST MAN ON THIS BUSINESS...SORIN!

Grate having you back am from Jamaican wish you all the best

Well I used the knowledge of diagnosing bad caps on this channel and fixed up a $30 high end Latitude E6430 with NVidia graphics and HD+ display which has a shorted capacitor right after the 2 MOSFETs! $30 for such machine in great shape is a steal!

Hi there,I'm from sourh africa, port elizabeth,great channel,love to learn from you.

A tip to help with your soldier iron temp you have to have that blue plastic key thing in the front to change temp. I leave mine in all the time. Hakko does this so co workers won’t change temps on other persons station area. I went through the same problem as you until I found this tip out then my iron works great now. Better then my wellar. Hope you get this to help Sorin....thanks for the videos. P.S. I can tell with that tip your stuck on the factory settings. New station once you get the temps up and working right. You will love it then.

Where I work I was assigned an M6700 for sofware development. I was able to disassemble it a couple of times since it's quite old and beaten up, and it's having few faults. But my impression was the same, such a cool and well made laptop. I went to Dell's website and they had like a "Workstation" category. I bet they were crazy expensive at that time.

Thanks a lot for all the educative repair lessons...... You are my mentor.

Thanks to you Sorin I started to learn about fixing the motherboards. So far managed to fix one with faulty capacitor and next one I ma working on I asked for help in Discord and I was given precious info straight away. Will see how it goes with replacing that mini chip ha! Thanks a lot for man.

Love this channel! Best part where I LOL was when there was a flame.... so awesome! Love ya Sorin. Cheers mate

1:24:10 "speak with me i am friendly" but on another side kicking it with 5amps and evil smile :D hahahhahahhah

You are helping to keep me sane in lockdown. Thanks

Wow that was awesome we saw saw flames and he still solve the problem way to go . Thank you for sharing .

The way that works . its call a ! wire circuit. That 3.3 volts goes from the mother board back threw the charger wire to the I.D chip in the charger if the connection to the part of the port is bad it can read on the motherboard side but not charger side. It could also be the super IO extender chip it used in dells.

When experience is combined with perspicacity and of course good knowledge then the mixture is called Sorin. Well done! Have a nice weekend!

thank you so much Sorin

Error mesg on screen after repair is actually a good thing as it means that the CPU and main board is at least trying to work and H/D, ram or something out of place is no good. Amazing when i saw that the layers might have been burnt and even Sorin might struggle with that one as would the manufacture on a multi layer board. Only worry i have with applying too much current is that the tracks and even layers might get burnt and 2-3 amps has to be enough to heat something up and feel it , i keep to around 2 amps unless i need add more. Parts get stressed over time so another cap might start to burn out even when you found shorted cap and then alter another cap and so on. Love this channel, best on the Interweb!!

Happy to see a real laptop here. Not the usual consumer crap that is engineered to be as cheap as possible.

Hello, Mr. Sorin. Dell laptops require a Dell adapter, otherwise it powers on but doesn't charge the battery. Theres a chip inside the dell ac adapters that comunicate with the motherboard using the center pin, telling the mobo that the adapter is authentic. If you enter the BIOS it must recognize the adapter by indicating its power (65W, 90W, 130W), etc. Maybe that's the problem. The charger you are using doesn't pass that information to the motherboard. You can google for more information.

I saw a lot of Dell with this error... usually after a power supply replacement... there are some Indian videos about bypassing the ac control check.

In Dell Power Supply used 1Wire communications. Pin ID mostly is 0,2v 0,3 v after pluging in laptop is 3,3V .

I really like the Precision line over the consumer rubbish especially the older 17inch models as one can do so much upgrades wise and they'll just last.

Its a pity you didn't go further with the broken connector/Inspiron. I have the same model. One day just popped up can't detect the charger. Bought a new Dell 45watt charger like the original. Same error, can't detect the adapter type. Borrowed a Dell 65 watt charger and still the same error. Replaced the socket even though all continuity was fine. Battery will charge if I connect it to a bench psu. Everything else works just cannot detect the adapter type. Great channel by the way. Keep up the good work.

New to the channel. Thankking for making the concepts easy to understand... Very Practical for a hobbyist like me. Keep up the good work and can't wait for your uploads.

You don't have to rename the channel, you stay number 1. great and thanks!

Hey man I recently got water damage on one of my MacBook Pros & I really need it for school. I have 2 MacBooks, 1 with water damage & 1 with a broken screen. If you could reply to this comment it would mean the world man.

Good Job. i have repairing with jumper method too.

Hi. It's fascinating watching the way you figure things out and find ways to recover from what look like impossible disasters! I got a pleasant surprise when you picked up the Dell M6800, as I have the M4700, which looks the same but without the fingerprint sensor. I agree that these are proper laptops, and I love my own, so it was good to see you figure out how to get the back off. :) I bet somebody bent the case, when they couldn't work out that it slides off! I just watched another video where you say you try to read comments on the old videos, so I came back to ask if ou videoed the next day of finishing the repair? My problem is that something corrupted the startup of my Windows 7 device so it could not find the Windows start file, and I did not have time to find out how to fi it, so I left the machine unused for a couple of years. Then, when I had time to look at it again, it would not start. The fans come on, but then it turns off without going into the startup sequence. I thought the BIoS battery might be dead, so I tried to change it. Then I discovered just how 'Precision' they made these things! The fitted battery has welded on leads, and there is almost nowhere where a normal battery holder can be fitted! Even if you try to run a battery wire over the back of the cooling ducts, the back will not slide back on! I had no welder and could not solder to a battery case, so I ended up drilling through the side of the depression for the battery, so that I could run wires to a battery holder on the other side of the case. It was a tight fit getting the back on even then, and the case metal is surprisingly hard to ordinary drills! Very well made! Sadly, it still would not start after putting in the new battery, so I was pleased when I saw you working on the similar machine. You had to put it aside to finish later though, so I never saw how you managed to restart it. :/ Is there another video with the rest of the repair, or more on similar 'Precision' machines? I notice that on the Dell site, a lot of people had had the same problem of the machine refusing to start after being unused some time, and nobody had found a reliable way to fix it. Maybe I will get more ideas from your other ingenious repairs! Thank you for all the entertaining and educational lessons. They give me plenty of ideas. (y)

Hey Mr, Sorin...nice to see you again.

"maybe we can see some smoke somewhere.." love it.

The people are wild as hell just sending stuff there lol

Whew, I was on the edge of my seat. Rename episode to "Beat the clock"!

1:26:22 good old times. Removing the entire GPU and replacing it instead of throwing the laptop in the bin.

Very, very usefull video and lesson as always. i think that dell bios has an information about a battery without to upload a windows. Also, think that this model has a possability to set "charger biheviour" to charge without the "3-rd signal" -ID of charger.

I think you need to calibrate the tip/iron. Real temperature on end of tip is more lower than it shows.

Happy birthday dear Sorin !

IDEMO SORINEEE 🇷🇸

936h soldering iron is good and no need to wait for it to get hot. It almost instantly getting hot. I always use it

that last dell is nice it is very similar to my dell precision 7510, solid build I7 with 32 g of ram

Had to power a thinkpad with the bench power supply the other day and found out you can trick the psu sensor by using a 180 ohm resistor from middle pin to ground. Unfortunately I'm pretty sure it doesnt work on dell cause they use a chip inside the psu instead of a resistor. Nice video Sorin you're the best! Cheers from Brazil

FANTASTICCCCCC VIDEOOOOOO AGAINNNNNNNNNNNNN...........looking forward to the next episode Saluteeeee

Wow that was an amazing solve

3 caps in a row? That's world record. They were near the part of the chassis that got bent, maybe were damaged in the accident.

So that’s a horror movie 🍿 and right on time done ✅

Precision is Dell's professional mobile workstation line. Basically desktop replacement machines with dedicated Nvidia Quadro graphics and powerful CPUs.

You are a legend! Love the videos!

The best video ever you made! Like watching triller movie. You are realy the best!

Oh god, can't believe the lighter fluid actually caught fire haha! Gotta keep the repairs exciting. Great work as always!

He feels bad when the customer send him the connector.

👏 simply amazing. A joy to watch and learn.

Great job Thanks Sorin

YOU ARE THE BEST!!

Great teacher and engineer 👍🤓💯

Nice one Sorin, Kudos!

Very nice Job..

i want to see sorin doing bios firmware programming and editing me/txe regions, it will be a very nice video for everyone 😊

Mr sorin.thanks for all ur video...ittts veryyy helpful

Another great video, try to use K type tip for the iron it might be enough mass than.

Most entertaining video lots of fun watching you ... You are the best

Good job

is the middle pin not along the lines of the new usb c standard. It may be a power handshake (comms) between psu and computer

You are magician!!! 🙌🙌🙌

I love the videos and have that dell great machine they are! What is the purpose of the liquid you apply befiore soldering? Great video!

wow changes to the workspace. nice.

Pinche sorin me tube al filo de la silla todo el tiempo.

What happen to the other video, was excited to ses how not to fix a laptop. I am a learner and some of the most value lessons comes from you making mistakes so I dont do them my self.

Wow the last 5 minutes!!!!! 👍. Lolllllzzz and to add to the suspense we even had a fire 😁😂😅

Dell laptop needs dell charger - this is where the A/C error is coming from and it won't charge the battery otherwise.

thank you for all the knowledge you teach us, I am very grateful ! I hope to be as good as you at repairs one day, ps in your videos what device are you using to show voltage and current when ever you have a device plugged into a charger?

good job

Thank you

Master Sorin It is a very nice table. Wish you use in health. I missed your videos

somehow wish you showed putting it back together - for instance - did you need to replace those two caps? If not why not? Thanks for very interesting site...

It is a good idea to use solder mask to hold the soldered wires

Great video, thank you.

Happy to see you

Pop? I love your job. But Pop do you accept advice? Because there's a technique that will make you fast how to disassemble a different model of any laptops just by watching here in RU-vid that really helps a lot. Just type in the brand & model of laptop then watch here in RU-vid on how the guys disassemble it and each group of screws attach it with adhesive tape designed to each platform cover of laptop so it will be to make life easier, so when you assemble it back together, you know those group sizes of screws belong to that location. If I'm late to mention it, good for you those techniques and you're still impressively fast to troubleshoots issues! But luv your job giving me also good ideas. Thnx for sharing your videos pop. 🙂

Greetings to you, Engineering

Come on, speak with me... mother.....”board” :-))

You could make your own solder Iron with toroidal transformer . Could be a video from home for this period of lockdown (Just an idea)

Good job ! It was so just !!! 🤣🤣🤣 I love your channel, you are my best prof !

I've actually got to fix a shorted board by drilling it exactly on the shorted spot. I've posted the details on the Discord channel ;) Cheers!

very informative video thanks for sharing my teacher