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So I bought a new laptop 2 weeks ago that worked fine. Now however the screen is blinking. It turns on and off every 3-4 seconds. It doesn’t do it as much when i use it or when i play games. I can mostly notice it when i leave it on of a while. I tried downloading and updating drivers a lot of times but nothing seems to work.

I know exactly what you are speaking of i had the same issue after trying every possible software fix i diagnosed the issue to be a lose connector of the back of the screen. Screen blinks intermittently at random horizontal flicking lines from time to time well lucky its a rather simple fix watch the YouTube video i linked for a screen replacement on the y50 but instead of replacing the screen just remove and snugly reattach the display connector and tada problem solved at first i was hesitant about doing this myself but once i was able to stomach it was not that hard https://www.youtube.com/watch?v=7BqVuCKe…

I had same problem with my Lenovo Y70. Removed bottom cover and unplug the monitor connector from the hub and reconnected it. It is located right hand side on the top. That made it better but not fixed.So I also disconnected then reconnected the monitor connector behind the LCD display. This fixed it to 100%. No more blinking/flashing. Im guessing the issue lies in a bad design with the connector on both end for the monitor, they can work there self loose.

I had the same problem, but found this BIOS update through the customer service; http://support.lenovo.com/us/en/products… It fixed it completely (I wasn’t allowed to open it up due to warranty so I never tried that).

I had this issue with Lenovo Y70 touch and screen flickering and blinking horizontal lines (not in games). The solution was bios upgrade - I’ve loaded new bios - version from 10.2015. It works - since 2 weeks now blinking and lines are gone. :) So if you have this problem - try bios first. 5 minutes and problem is gone.

just update your laptop bios to the latest version and all will be fine i just finish fixing it and all is fine for me,…. good luck

Oh man, I did also reconnect the cable but I must say it is not working for me. It is still flickering and also me had a bad stomach with that new machine. Bad.

Problem solved! After trying to find new drivers, that don’t exist, browsing forums and tried all stupid advices - clean the power supply jack, readjust screen resolution and screen refresh rate etc., finally I just went to Device Manager and check the driver, and just find that there was evidently new driver installed before the purchase (probably because my model is with the new FHD LED Display, so I have an option to “roll back the old driver”, which I did and “voila” – no more flickering, picture is perfect!

My new Y70 was flickering from the get go (ever 7 to 15 seconds really). Went to lenovo support and requested a call back (took them about one minute to do this). The technician ran the trouble shooting steps and after testing in bios, and safe mode it was determined that a driver of some sort was the issue. The technician performed a recovery procedure (I had the technician take remote control of my computer) and a factory reset solved the problem. This of course is a factory reset so if one goes this route all installed software needs to be reinstalled. However, this solved the problem and the technician said to turn off the automatic driver updates (it updates generic stuff but this machine has some custom ones). All driver updates, get them from the lenovo site for this machine. But no more flickering. Happy machine.

Hello, I have had this problem on my y40-70. This is caused by changes to the locked bios. The bios has 2 modes, one for OEM and one for end users. The one for the OEM can seriously affect thing such as the graphics. This caused the flickering for me when using high-end graphics on battery. This issue can be resolved by simply upgrading the BIOS. If there is no update available, and you cannot flash the BIOS, clear the CMOS (on a desktop machine this is done by the CMOS jumper, but on a laptop its different). YOu have to open up the computer, and since your model is the y50, it is done by removing the screws on the bottom and prying the back cover off. Then you have to remove the main battery (look up lenovo y50 hardware manual), and the button cell battery that is attached with a red and black twisted wire (just pull from the wire). After doing so, you need to let the capacitors discharge by waiting approx. 10 minutes. After doing so, reattach the batteries (the CMOS and the main) and reboot the machine into the BIOS screen (using the onekey button). Set the date and time (as reseting the CMOS resets the date and time) and VOILA, your problem is fixed!

hello… i have a same problem. i have tried everything to fix my screen flickering but it didnt work… my laptop is Dell Inspiron 5550… please help???!!!!!

My problem is little different. Yesterday it was no display on my computer but after removing the battery to fix this problem. I just found another problem that is, after sometimes of loading the operating system my screen disappear with different colors lines and dots. I tried it on Windows 7 and also Linux. But the problem still the same. Sometimes during the loading of home screen this problem arrives. And when lines arrives on my screen system is halted. I can’t do any work. I must power off with long pressing the power button. My laptop is lenovo u41-70 i7 4gb of ram with Nvidia 940. So please anyone guide me what to do?

I had a flickering problem with mine. Turned out it was the cable from the motherboard to the screen. Fixed it after changing it 3 times. Seems the first replacements were as bad as the factory one. Very poor quality check at Lenovo.

i changed the lcd and now its working fine

I solved installing the drivers: https://pcsupport.lenovo.com/cl/en/produ…