Lenovo Yoga 900 black flickering, intermittent or no video issue
After taking off the back side of this Lenovo Yoga 900 laptop I found the issue with the video screen going black, the flickering on or off, as moving the screen.
After cleaning the cable tip as noted, the issue was fixed by moving the cable to a better position and backing it away from the mobo. Pulling it out and away a little, yet still securely plugged in.
All n all, these cables wear out and should be completely replaced, but that’s a bitch, and this worked for me.
NOTE: While working on this video cable connector, it seems the motherboard would not start up again here and there and I needed to completely disconnect the battery, wait one full minute, then plug the battery back in and all was fine. So if you think your laptop is dead at some point, it’s not and just needs a reset in that way.
ANOTHER NOTE: Even with a proper Torx T6 , the screws on the case are a beeeeyatch to remove. Push your driver in hard, and slowly unscrew. If you strip one, get a 1/8” bit and drill it out. I had to drill out 4 screws. It’s ok this, there’s 10 of them holding the back on. Now 6.
I hope this helps someone with a head start! It’s not complete, but should help.
Пікірлер: 37
So taping the cable in the perfect place usually lasts a few weeks for me before failing. My current working solution: * Again, place a spacer (1-2 strips of cardstock) under the ribbon cable near the connector (i.e. do whatever you need to to get the cable in a position so your screen works) * Once you have a good location, place moldable plastic over the entire connection joint (e.g. Thermomorph, Instamorph, etc.) In theory, this should make the cable effectively immovable after you've carefully chosen a working position. Didn't work for me the first time, but the plastic pullled off easy. Reset the cable, did it again, and was golden. So far so good...
@ta6847
5 жыл бұрын
Here is the working solution: photos.app.goo.gl/forniWLo2taJYgwo6 Before, the monitor almost never worked--I had to open the lid in the perfect position every time I used the machine, and breathing on it could knock it out of alignment. With this solution, it has not flickered even one time in the past month. Definitely worth a shot before anything drastic (scrapping, replacing the motherboard, etc; even easier than replacing the cable, which didn't work for me).
@DisneyDan
5 жыл бұрын
@@ta6847 Thanks!! would bubble gun work? ;-) Ha.... looks good and hey, if it holds why not.
Hey everyone. I've had this issue as well and its frustrating as hell. I took my machine to an official Lenovo service center and they recommended a new screen and new motherboard, the quote: $1500. Sure. Thanks for that. Luckily, I found this post and it gave me an idea that so far is working ok. On the beige colored strip that holds the LCD ribbon cable into the motherboard, I took a piece of very thin and flexible plastic and folded the ends underneath the main width, making a sort of spring like action. It looks like a staple that has been stapled, if you can visualize that. I taped that to the connector on the motherboard. Then, on the back of the bottom cover, I taped a piece of cardboard that would effectively apply pressure to that spring. I taped it to the back cover. then, when I screwed the back cover on to the laptop, I tightened as best I could without stripping the screws, which are lousy quality and easy to strip. So far, so good. Oh, and I did have to unplug the battery and wait a few minutes before re-connecting. I freaked out when the PC wouldn't start, but I read the comment and calmed down. Now, everything is working. This issue is annoying as it gets, considering how expensive this laptop was. And, its not my first issue. I had a problem with ghost bubbles/touches on the screen after a windows update so I disabled the touchscreen driver. Now, it won't let me enable the touchscreen function again. Luckily, I'm not a big touchscreen guy, but the whole 2-in-1 function is basically worthless on this machine. I am going to ride this fix until it starts cutting out again and then I'll buy a new machine. thanks to the original poster and the comments for this as I was a bit lost with what to do after getting the ridiculous quote, so you guys have helped me get some additional life out of this thing. Thanks!
@DisneyDan
5 жыл бұрын
Great tip.. .and glad it helped!! :-)
@ta6847
5 жыл бұрын
Is it still holding up? Sometimes I think I've solved it, and it comes back a few weeks later.
@SpanishMac
5 жыл бұрын
@@ta6847 So far, so good. The only issue I have had has been when the screws that hold on the back cover get loose. Then it will start to flicker a little bit. Once I tighten the screws a bit, the issue goes away. I need to figure out a way to make the screws stick. Other than that, its holding up ok.
@ta6847
5 жыл бұрын
@@SpanishMac I think there's some thread locker intended for computer screws, maybe purple
@SpanishMac
5 жыл бұрын
@@ta6847 makes sense. Thanks. There was blue gunk on the screws thw first time i opened up the laptop, so tbat makes sense. I'll see about picking some up.
I’ve just tapped it from the back side where that connection is supposed to be, without opening it. And it worked...
@dannyb7382
3 жыл бұрын
Ha... hey if that works! I jammed a small piece of plastic in there and it worked for a while, but then was forced to dig deeper.
Right now, my working solution is: * Place thin piece of cardboard (~cereal box thickness) under the cable * Tape the cable down on top of the cardboard For me, it might be a loose solder joint, but it may not be feasible to re-solder. Replacing the motherboard seems like the next step if it came to that.
Hello, wanted to leave my piece here :) I went to 4 services with that, two didn't even want to look down on the issue, second was "we can change tape, then lcd, then maybe motherboard" - and I did not agree to that as I read here changing tape or screen didn't help. And of course all the workcost would be on my side ;) Fourth service, after 5-day diagnosis, called me that the motherboard is faulty and needs fixing (not changing to new, just fixing, some faulty paths probably, I will dig deeper when I will pick up the fixed laptop). I've agreed. The cost is 900zl, on today exchange rate it would be 245$ or 200E. I guess it's fair price, it's still good, and comparable computer is like 3x the fixing price.
@elninoprematuro
2 жыл бұрын
hi!, did you find what was the issue, i want to fix mine
@mateuszszuter2032
2 жыл бұрын
@@elninoprematuro unfortunately not, didn't have chance to speak to the serviceman. However, it needed two more visits for additional fixing after the first time :D but they managed to make it working flawlesly
@elninoprematuro
2 жыл бұрын
@@mateuszszuter2032 this is amazing, i'm happy for you, i've notice that the touch screen works but it doesnt display any picture. If you grab on some more information by any chance please let me know.
Hi, My problem is the same of yours, unfortunatly I broke the screen then l replaced the cable but that didn't help, I have noticed that when I slightly bend the motherboard the screen works? ! I really don't know what should I do?
Hi, Thanks you for the video. I have the same issue. Unfortunaltly I have borken the sceen, thinking there is the issue, new screen and nex ribbon didnt help. Still no picture. Its probably the ribbon connector on the motherboard, but not easy to replace. What do you think ?
@DisneyDan
4 жыл бұрын
Yeah to get to the ribbon connector thats under the screen part itself just isn't worth the time. With laptop prices near 200-300 it seems easier to just buy a new one. unfortunately
@ibrshhassh8201
3 жыл бұрын
Hi, My problem is the same of yours, unfortunatly I broke the screen then l replaced the cable but that didn't help, I have noticed that when I slightly bend the motherboard the screen works? ! I really don't know what should I do?
Also very curious how this ended. Were you able to fix it? Having the same issue, gradually getting worse and its a PAIN.
@DisneyDan
5 жыл бұрын
Yes, it was fixed, but only for a couple months and recently had to mess with it again. I've not put it on a desktop and told everyone DON'T TOUCH IT!! and it will be fine until it's closed and opened again. Lame Lenovo.... lame.
@osembe
5 жыл бұрын
@@DisneyDan thanks for replying. I took mine apart as well and "massaged" the cable back in. With the same result, worked fine for a while but it's started to glitch again... I guess I'll keep doing that until I find it feasible to get a new laptop, not a Lenovo... Or I'll just staple the mofo in place!
I have the exact same issue. I also took it apart and looked at that cable. The connector seemed solid and I didn't want to mess with the cable without knowing how to detach it. Thanks for the video. Did you ever figure out how to fix it?
@DisneyDan
5 жыл бұрын
This was the only FIX I found, to move the cable, use a piece of plastic to sorta hold it in place, to press down on the connector, and it's working "ok" so far. cheap build on this from Lenovo. It sucks
I had the same issue. Tried to clean the cable and broke the latch on the connector. Do you have any recommendations for this short of replacing the motherboard?
@DisneyDan
5 жыл бұрын
I hate those little latches... ugh... sorry it broke. I've actually taped those on before and another time used that UV Glue to hold it in place. Anything to hold it there. It's been a couple months, so I assume you resolved the issue. Good luck!
I put a strip of cardstock under the cable, I think it helped a little.
I am having the same issue. Was anybody able to find a fix for this?
Did you find a fix for this? Did you replace the cable? or?
@DisneyDan
5 жыл бұрын
Sorry for the late reply. I used a piece of plastic to press against the cable connector, and that worked for a few months, then had to work it again. it now sits on a desk with a note not to open and close the lid. sorta defeats the purpose, but it's working. Damn cheap build from Lenovo here.
Good video thank you :)
Can confirm replacing the ribbon cable does NOT help.
@user-jm2gu4zb7c
4 жыл бұрын
So you replaced it with a new spare part? I'm having the same problem, though the problem is at the other connector, by the screen.