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MateuszK
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Posts: 10
Registered: ‎05-18-2016
Location: PL
Views: 17,075
Message 1 of 16

Lenovo Ideapad Y700 Screen flickering/blinking

Hi,

 

I bought my Ideapad Y700 in December 2015, so it's half year old. Warranty is 2 years after entering S/N on Lenovo website. Please only reply to this if you are form Lenovo support.

 

Question: Will opening back lid of the laptop to check for connection between screen and rest of the laptop void my warranty ?

 

I suspect it's a cable that got lose, but I would like to be sure if it's worth even checking. Is it ok to open screws to have a look inside or will that void my warranty ?

 

Additional information:

  • Screen blinks even when booting, before operating system.
  • Screen blinks in BIOS.
  • Screen blinks with both Intel and Nvidia graphics.
  • No blinking with external HDMI monitor.

So it really looks like hardware problem.

Sr Support Specialist
Posts: 7,816
Registered: ‎11-30-2015
Location: PH
Views: 17,045
Message 2 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

Hi MateuszK  , 

 

Welcome to the Community Forums.

 

Opening the back cover (even it is a FRU - field replaceable unit) usually done during upgrading parts like RAM and harddrive do not void the warranty as long as no damage is done during the process or due to the change .

A longer detail about warranty here on this discussion

 

Similarly , parts inspection and reseating LCD cables although not required to be performed by the customer during in warranty troubleshooting and is appreciated as long as you have the tools and skills to perform it following the guide in the hardware manual.

 

As you have isolated :

  • Screen blinks even when booting, before operating system.
  • Screen blinks in BIOS.
  • Screen blinks with both Intel and Nvidia graphics.
  • No blinking with external HDMI monitor. 

The more that it leads to a LCD / LCD cable point of failure . Only thing that may connect the symptom to a firmware is the BIOS update that may help but may not be available at the moment

 

If all fits ok but still having the flickers then best to call in technical support for the service. 

 

English 24 hours a day 7 days/week
1-877-4-Lenovo, 1-877-453-6686
Schedule a Callback for faster support

 

Update us how things go. 

 

Regards



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MateuszK
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Message 3 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

Hi,

 

Update on my issue:

 

  • I decided not to open laptop as it was indicated on this forum that LCD cable in Y700 is deep inside and it is not easy to reseat it.
  • Problem disapeared after I moved laptop in order to sit with it on a couch.

I don't think it's software problem as the same thing was happening in boot manager and in BIOS, and computer worked without any issues couple of months. Moving laptop at some point made flickering less disturbing, and after carring laptop around room it is gone completly. This indicates that movement must have reseated lose cable (My guess).

 

For peope having the same issue, try moving laptop around or walking with it, but don't shake it too hard as that could damage something (i.e harddrive).

Next time this happens I will make a small movie of the issue as a proof for the service. I guess that's best what I can do at this point.

 

Things like that are easy and not expensive to prevent in laptops if proper connector is used, but if this happens for many people, although common problem, it hurts branding and user experience very badly. It could be brought up to Lenovo attention. I wonder if other brands have the same problems (I know Asus do with their keyboard).

 

Regards,

Mateusz

Sr Support Specialist
Posts: 7,816
Registered: ‎11-30-2015
Location: PH
Views: 17,017
Message 4 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

Hi MateuszK , 

 

Greetings. 

 

That additional note about change in position would be able to correct the issue only confirms your guess and aside from the fact that it also happens on the BIOS and not with any external display would indicate the LCD cable that may be loose or get impinged . 

 

Laptop are meant to be mobile and you should not be having this problem . Do take the service intervention under your warranty to have this fixed for you as soon as possible. As you are not required to open it the symptoms and conditions you manage to isolate is very much sufficient for tech support to perform what is neccessary.

 

Give them a call as soon as it is convenient . 

 

If you're in Poland :

Polish,English  9:00 - 18:00 Monday - Friday
Produkty obrandowane logiem IDEA : +48-22-295-4950 or +48-22-116-8656 

 

Update us how it goes. 

 

Regards



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MateuszK
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Message 5 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

I bought laptop in Poland, but most of time I live in Sweden. Do you have any information on possibilities of fixing my laptop in Stockholm if the issue happens again ? Does my warranty for laptop I got in Poland cover repairing it abroad or do I need to ship it back ?

Thanks,
Sr Support Specialist
Posts: 7,816
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Location: PH
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Message 6 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

Hi MateuszK 

 

Greetings. 

 

Checking on International Warranty Service for the Y700 here . 

You may call in  : Switzerland  0848 000960 Lenovo

 

What usually would happen is that if a located country also market the same model and machine number, they would have the needed parts available to service it. 

If not , then that would be the time they refer the machine to the original location for immediate service.

 

It's worth a try.

Hoping for the best. 

 

Regards



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Westarmy
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Message 7 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

I had the issue stating Intel graphics driver (Windows 8) has crashed etc.

 

This is not a hardware problem, in some extreme cases it maybe. I would like to stress the issue is the Intel driver being used by Windows 10.

 

I came across this problem when I downloaded an updated Windows 10 driver for the i7-6700HQ processor directly from intel, it alerted me that the manufacturer does not support you using this driver and would abort the installation.

 

So I took the risk and uninstalled the intel driver on Windows 10 and then ran the installation, so once I uninstalled it, the laptop became extremely slow and eventually got BSOD when trying to turn it off (As required by the setup). I rebooted and again the laptop was being extremely slow. (I had downloaded the driver before hand). Then I ran the intel installation setup which is a native Windows 10 driver. After 30 mins it finally installed and I rebooted.

 

No flickering at all. The laptop is now a lot more faster, I get a better battery life (6/7 hours rather 4/5 hours).

 

I urge everyone to uninstall the pre-installed lenovo windows 8 intel hd driver and replace it with the intel windows 10 hd driver. This should and for me has stopped flickering.

MateuszK
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Message 8 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

Hi,

Thanks for feedback, not sure if you read my post above. I never had Windows on my computer. Problem also was present outside of operating system, which is bootloader and BIOS. Also all worked fine when using HDMI to monitor. It was definitely hardware problem for me. It fixed itself, somehow (could be lose cable).
If you had flickering in BIOS and doing something with Windows drivers helped you, then it's just a coincidence, which might not help other people at all.
Westarmy
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Message 9 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

Apologies I did not realise it was happening in the bios (Shouldn't have skimmed through the post Smiley Tongue), since it is happening in the bios then it is most likely hardware.

jojod
What's DOS?
Posts: 1
Registered: ‎06-26-2016
Location: NA
Views: 16,564
Message 10 of 16

Re: Lenovo Ideapad Y700 Screen flickering/blinking

Hi,

 

I bought my Ideapad Y700 last June 24, 2016  so it's days old. Warranty is 1 year.

 

Upon arrival of the laptop unit and opening it I right away encoutered the following:

 

 

  • Screen blinks even when booting, before operating system.
  • Screen blinks in BIOS.
  • Screen blinks with both Intel and Nvidia graphics.
  • Display has a shadow of the previous windows application that was opened, even in the bios

 

Unfortunately I haven't took a picture of those. Today I sent back the unit to the reseller but whne they opened it and trued it they have not encountered ALL the errors I encountered last Friday.

 

I have a doubt getting the same unit, will Lenovo provide a replacement even without encountering the same problem from their end?

 

Thanks!

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