LENOVO G50-30 LAPTOP with a WHITE SCREEN Fault - Trying to FIX 

when youre using/understanding schematics, you cant claim to be an amateur anymore... its been great watching this channel and your skills grow

Great fix Vince. Fixing a laptop or computer are not easy repairs to do.

The previous owner was called Sinead, so it probably still has her preferences and cookies saved. That's why you got the beauty video.

Well done, Where to start , The screen fault is the control chip on the lcd screen that is faulty and not the lcd panel. Yes EC ( Super IO ) on this model is programmable, you can read the bios chip and extract the EC file from the bios but you would need a programmer to program the EC something like rt809f or rt 809h , I don`t think the ec was at fault here rather that the 3.3v rail was gone. I would do a bios update just to make sure the ec and bios match. Try to repair the faulty laptop would be a good video. Cheers 👍👍👍👍👍👍👍👍👍👍

you did a wonderful job removing that LCD bezel, I just wanted to tell you generally starting from the top is best and working down to the bottom. under the bottom side of the bezel where it rests on the screen there is usually a strip of pretty strong adhesive. be careful with that it can cause the bezel to break. I work on laptops like these all the time. and I was gonna say, it's more likely to be an LCD issue instead of a motherboard issue if the device displays out of HDMI. lastly, if it displays on an external display it generally is unrelated to the graphics chip. Good work Vince

The white screen is most probably because of the missing VGH/VGL/VCOM/VDD on the TCON board and not because of failed ACF bonding. There will be a dc-dc converter on the PCB(on the LCD panel) . It might be failed.

19:20 If you would short all the pins above the plastic separator, nothing should happen. The longer pins are Ground, as they need to be connected to the battery first. Below the plastic there are the two positive pins and the two smaller pins besides the Ground pins are most likely data lines for measuring the temperature or reading out the serial number of the battery. The plastic part is a separator to prevent plugging in the battery the wrong way and to prevent accidently shorting the contacts. It is also a bit longer, so no straight piece of metal could short the voltage to the data lines. It could always happen, that someone is using the notebook without the battery (stationary use in schools) and a paper clip or something similar gets under it and would short it out.

Nice! 👍 Hats off to you Vince for persevering with the original one and bringing it back to life. I wonder if the LCD panel has a t-con (timing control) like a TV? If so, could it be that which failed?

Another really enjoyed video Vince, I expect you have already done it but might be worth wrapping some insulation tape around your eye loop. Top job

& the moral of the story is buy a plastic eye loop 😉 (or put electrical tape round your aluminium one) 👍🏻

I saw a comment about this and I know this sounds idiotic but my HP laptop was like this, white screen no imput at all. Suggestions were, change screen or remove power chip and short it out, but this comment said this, remove battery and power cord and hold down power switch for 30 to 60 seconds replace battery and power cord and turn on and strange and silly as it sounds my screen came miraculously to life Its worth a try will take about a few minutes and doesn't involve taking laptop apart. Great video as usual Vince wonderful

With your eye loupe, the open end is supposed to go into your eye socket where it sort of stays there like a monacle whilst you look at things, not really made to be placed down onto something. If you are wanting to use it not in your eye I would really suggest getting a plastic housed one. Plastic sets from 2x to 10x are inexpensive and most useful. I use 5x and 10x the most. A conductive metal one around electronics seems like an accident waiting to happen. Hope this helps. Love your videos. Keep up the great content.

hey vince i also use knedles to make life easier i stripped out the copper joining blocks from a choclate joining block strip and clamp the knedles with those loosely tighten them to the probes whne kneeded.

The screws fell out of mine the exact same model, it wouldn’t boot and it turned out to be the bios battery.

Some additional info that maybe helpful. Places to look for white screen issues are the components feeding the 3.3v to the screen(lvds) cable on the motherboard. Is 3.3v on the connector on the motherboard, yes then move to the screen. No then go backwards to the switching component feeding the cable. On the screen iteslf if there is 3.3v on the screen pcb at the cable then look for the VCC or TST point on the screen pcb. If no 3.3v on VCC try running a jumper wire from the 3.3v at the cable to the VCC point to see if you get picture back on the screen. The above has worked twice for me. Once on a Lenovo and once on a HP. On a third laptop I had to run a jumper from the connector on the motherboard to the VCC on the screen pcb and it worked but the the brightness was on full and always on. So I had to find a 3.3v point that was only active when the laptop was awake so the screen would go off when it went to sleep or was shutdown. Its a handy fix but most screens if the same size are swappable these days. Really enjoy the video vince, especially the way you deliver them 👍🏻

Hey Vince, I find that guitar picks are really handy for opening up screen bezels and other similar things. They come in different thicknesses and they aren't as damaging as are metal tools.

If a new screen cost the same as a broken laptop, you gained spares and also some screws. Good fix

Thank you for that great video, and yes there is a chip that has failed on the screen. i had the same Problem with my Lenovo Notebook.

I got a lenovo like that that someone had thrown away in ewaste. It had the white screen issue, but wouldn't do anything, and no external display either. I reflashed the bios chip and was able to get it to boot up, using an external screen. The internal was also broken, I think maybe someone got annoyed that the laptop wouldn't turn on and punched the screen. I just took the whole lid off, so now I have a smart keyboard plugged into my TV :-)

I actually had the same white screen problem on my laptop once. Though it was actually the ribbon cable bonded to the on glass chip inside the panel that had developed a faulty connection. Replacing the screen was easy though, and I got a better quality one as well.

My daily laptop is a Lenovo Z50-75 I bought it faulty on eBay and it just worked after putting in a hard drive. I've updated the 720p LCD to 1080p, an SSD and 16GB of Ram and its a nippy lil bugger for a 4th gen. I paid £40 inc postage.

My brother had the g50 too and the screws kept falling out of that one too which caused the hinge parts to crack and the casing to be ruined, I’m assuming they didn’t use any locktite The laptop was never taken apart prior

It comes down to experience. When I first saw the starts of this video, and you had a white screen, I know it was the panel because I had seen this many times before. It could have been verified(when a person doesn't know this problem is the panel) by using an oscilloscope to test the signals going to the panel...

The first thing I do with a suspected screen problem is to plug in an external monitor to the laptop. On older machines a vga or a hdmi on newer. This will give you a better idea if there is a problem on the screen or the motherboard/ribbon and graphics chip. Congrats for getting it working Vince glad it did not have the graphic chip problem.

The problem of the LCD display is missing VGH voltage it shows 24 v check the following voltage VGH 24v, VDD 3.3V,VCOM check this voltage on the planel. If you need any more details check on RU-vid white screen I seen all you're video. Great video Have a great day.

his voice sounds the same from 2 years ago good to watch it again

awesome video Vince good to see the laptop working in the end :) nice fault finding and great shout out to Sorin :)

Is is a bird,is it a plane !?...No it's Louperman !....good job Vince ! 😊

Maybe with aftermarket lcd controller board can you resurrect the older display as a standalone second monitor?

It appears that you are a good fixer upper ! 👍😀

In the bios, you can change the key behaviour, sometimes if changed, you dont need to push the Fn key, just brightness up/ down

To change the screen brightness right click the battery icon, mobile settings and change it there instead. Oh wait, you figured it out as I was typing.

I am here from the xbox controller vid, you are great at explaining stuff, good job

Oh brilliant! What a nice entertaining video you needed a lot of spears and 60£ is brilliant even for just the screen and screws, an extra battery is soon needed to if it used daily. I have one of those as an xp machine connected to my xbox og. Battery is totally gone but dose what it needs to do and is quite and reliable! Thank you!

Must admit i did think ribbon fault but you have so got this vince

I'm guessing the beauty vlogger ad played because it might have been of interest to Sinead who is the user that's logged in on that laptop

Amazing fix Vince……I had a similar problem on a dell but was never able to get it fix…couldn’t find a schematic online that I didn’t have to pay for

1:38 a friend had an apple laptop that had a (known) soldering defect of the GPU, I was able to fix it by resoldering the chip on the mainboard (no need to remove it, just resolder)

Great video as always Vince but is your brother watching this and shouting "Arrgg! What are you doing"? Wow when I wrote this I was only about 15 minutes in, I didn't foresee what was about to happen!

hi vince i had the same white screen issue on my dell laptop i fixed it by putting a little bit of cardboard between screen bezel and screen, When pressure was put on the LCD Screen board the screen works fine. When i removed cardboard the screen would freeze or go white. Ive heard others fixing this issue by shorting the lvd in to the 3v in on the screen connector pins if that works the use a jumper wire to keep the pins shorted.

G'day Vince! Would you be able to bring back the RU-vid fixers? As I loved that series

27:01 If it wasn't for Vince, I'd have never have learned how to spell, "isopropyl alcohol". Thanks Vince!

the issue was this laptop tried to show video evidence of heaven

The problem with the screen not working is the display control board that's on the actual screen. They go out a good bit on the Lenovo laptops.

In all of your experience with taking apart and fixing HP, Lenovo, Asus, and Dell laptops / notebooks, which would you say is the best and which is the least desirable in terms of build quality?

When having issues like this and you have confirmed that the GPU work, your next step should be to reseat the LCD cable on the motherboard 🙂

how did you get into the extend screen option if nothing is showing on the laptop screen ?

i have done a tear down on one of those laptops too

well done . persiverence solved this problem

Nice fix Vince!

I've killed circuit boards when probing with a multimeter. If you short adjacent pins you can blow up sensitive integrated circuits without even realizing it. Pays to start with a schematic and know what's hazardous to the device before probing blindly.

Maybe I missed it, but what exactly WAS the fix for the White Screen in the end? Replacement of the Super IO chip, or replacing the faulty PU401 chip? I have exactly the same problem with a recently purchased Dell Latitude E6420.

Excellent =D Bad luck with that eye loop! That's just the sort of thing that would have happened to me lol. Regards the skin cream advert - the ads are targetted based on your online profile (eg. cookies, IP address too). If your wife was looking at beauty products (or your brother in laws daughter), you may see adverts like that! I often see adverts targetted at my wife lol. That said - I think YT advertising allows them to target specific videos. Maybe the person in marketting there just didn't do their job properly lol

Great video! How did you come upon the schematics like that?

The plastic cover behind the screen is quite soft and bends easily. you must be very careful when closing the screen or pressing the screen on the back

You don't need a spec for spec replacement screen. If you search for 30pin 15.6 inch screen you will find the replacement easy. You just need to look which side the connector is but most of them are on the same side as yours.

Vince you should get a hdmi control board for 30 and 40 pin monitors so next time you can check if the screen is working or is it a laptop problem.

It’s not a Trying to Fix video without somebody doing dishes in the background. 😂

good video Vince, but this laptop belongs to the junk yard, 1 stick of ram instead of 2 to put it in dual channel mode. Still can understand why anyone will put 1 stick of ram even as an upgrade when everyone should know that 2 sticks work better. 2 sticks of 4bg works better and faster than 1 stick of 8GB and the same goes for any amount of ram. 2 sticks of the same matched ram put the machine in dual channel. just chuck in the bin and get new one with new fresh battery, new warranty, new faster NVME drive not these SATA crap from 10 years ago and hopefully a better screen too. Thank you for the video

What a perfect way to end a school day! Wonderful video vince!

Mx2V. Good times. Good times.

Well done Vince!

Awesome! Just in time when i was looking for something entertaining to watch!

Had a G570 which is an older model off this laptop and it had issues where the screws kept falling out off the hinges

Nice fix

Awesome, inspiring regardless of you mentioning not 2 copy...entertainment only lol!😎

It would be great if you could do a install and guide on smart doorbells, I've got few and none do what it says. I don't want a ring of anything with a subscription, I want to hard wire it and my original 1950s ding dong to work.

Feels like it got missed.. what was the fault on the faulty ebay one?

you need to press the FN key + brightness key to work. otherwise, your just pressing F11 or F12 for example

Destroyed with an eyelupe. That's new. But at the end you got a working item. That's all what matters.

Nice save!

Gosh, if only I know as much as you do. My laptop's screen is also white. But if I let the laptop run for about 20mins, the white screen gradually colourises and soon the screen is normal again, until I shut the comp down or the screen saver comes on. Then back to the white screen again.

Congrats on a new sub vince

great video. clear explanation

Thanks for great content dear Vince !!!

I wish you could do that on my laptop. My laptop has the same issue

I dont wanna be that guy but u can actually check your graphics to see if it has the ability to run graphics, go to device manager, then system devices. there you'll be able to run a test if the test fails its a no go. graphics seem good on this one if its able to cast to another monitor

Great channel love it keep up the good work :) from me in Sweden

Big fan bro, found your tutorial on fixing a joycon rail that’s busted. Do you do orders? I would like to send a few things to ya

Thank you ser

One of my uncles has a laptop which developed a white screen fault and I didn't have the experience or equipment at the time, but info pointed towards reballing the GPU. He claimed it was a virus. I said find a PC repair place who knows how to hot air rework motherboards. I don't know if it ever got fixed.

I wonder, did you get the screen working again? Check for fuses on there

Nice fix, i doubt it was the super i/o, probably just the mosfet pack you replaced. Why does it sound like you're working in a café kitchen in a lot of the videos with all the clatter of pots and pans at times :)

yes fantastic sir

usually all the laptops that I have repaired with the white screen was just a bad screen.

Wow that was awsome

maybe it related something to do with graphic drivers because it happens with me as well

Those voltages around the faulty screen seem very low. Does an inverter not need to bump up the voltage to power the screen? Most of your readings were under 1 volt. I would have expected at least 10 volts out of the 15?

Why don't you buy some extra fine probe leads for your multimeter? It'd be a damn sight easier..

my man literally out here breaking shit so he can try to fix it back you lucked out finding that board diagram because if not the source of that 3volt rail would be a pain if not impossible to find

An earthing strap to ground is standard practice in electronics repair as the repairer can build up static and easily frag a circuit.

Had same Laptop with the same dead IC :D

it's cool to be here early does vince reply?

How are you doing Vince? Iv made a collection of your happiest moments. Will you permit me to to share them?

Removing the bios battery and shorting the contacts would cause the bios settings to be lost, in most cases the computer would automatically use the default bios settings when the bios settings have been lost My sister used to have a dell laptop, at some point she gave it to me, and i could tell that it had a dead bios battery as whenever i removed the rechargable battery with the computer unplugged and shut down (which i did during the attemps i made to open it up), the clock on the computer would revert to the default time The laptop had Windows XP on it, and also the rechargable battery did not hold a charge by the time it was given to me, well, the laptop could only be run off the battery for a few minuites before it would need plugging in

The graphics chip is working, if it wasn't you wouldn't have a display on the TV.

Just subbed

How do I get ads

screen going all white , i had one that was a good screen and while fitting the bezel in place the bottom right corner got pressed little too hard and the good screen faded away to white never to work again. only made that schoolboy error once.

the screens controller board is what failed and it caused the white screen