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  • Registered: ‎07-07-2016
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U31-70 Laptop Type 80M5 Screen Flicker

2016-07-07, 18:22 PM

Hey there everybody,


I bought this laptop earlier in January and I've been having a problem with the screen flickering. It's like it goes to full brightness then back to the brightness its been set at. It happens randomly and I haven't been able to pinpoint what is wrong and whats causing it. Could someone provide some insight?


Machine info
Processor:Intel Core i7-5500U Processor(I7-5500U) | Memory:8GB DDR3L 1600 | Operating System:Windows 10 Home 64(EN:English) | Hard Drive:500GB 5400 | Wireless Network:Bluetooth Version 4.0; Lenovo AC Wireless | Camera:720p HD Camera | Monitor:13.3 FHD |




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Re: U31-70 Laptop Type 80M5 Screen Flicker

2016-07-11, 10:32 AM

Hi there, Brutt-


Thank you for writing in to the Lenovo Forum - happy to have you here today.


To fix the flickering problem, you should first check the laptop cables for loose connections. So engineer have already diagnosed and confirmed, it was not the lcd cable which is faulty.


Another possible reason for the flickering problem in computer screens is interference of magnetic fields from other gadgets. Yes, check if near your laptop, you haven't placed speakers, fluorescent lights, cell phones, radios and any other electrical device. If it is so, you must remove any such interfering electrical gadgets away from your laptop. Studies have proved that cell phones do cause screen flickering.


One of the major reasons for laptop flickering is the problem in display settings, when some computers are upgraded from their original software versions


First of all try and identify when you face this issue, when on Battery power, mains AC adapter or in both scenarios? Is it for a particular power plan or for all power plans? Also check if this happen when you enter BIOS and in Safe Mode too. Is your battery very old?


Please follow the below steps:

  • Click here and update your video and graphic drivers.
  • If updating does not help, uninstall and reinstall the Video drivers.
  • Open Control Panel\All Control Panel It ems\Power Options\Edit Plan Settings and restore the default power plan settings by clicking on Restore default settings for this plan. Do this for all your Power Plans.
  • Change the refresh rate and see if that helps.

Update us how it goes.









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