1. faith3935's Avatar
    Hello I have an AT&T Microsoft Lumia 640 LTE and it turns out there is a bright spot on the screen so I am wondering how do I go about getting this problem fixed? It's currently running the latest Windows 10 preview.
    02-16-2016 06:20 AM
  2. gpobernardo's Avatar
    Do you have a photo of your screen so we can see? Could be a hardware defect.
    02-16-2016 07:39 AM
  3. faith3935's Avatar
    A better picture of it
    Attached Thumbnails 1455633195208.jpg  
    02-16-2016 08:33 AM
  4. gpobernardo's Avatar
    A better picture of it
    I don't see any bright spot - could be too small for your camera to pick up. Have you tried using Hardware Tests and check if your screen has any dead or out-of-order pixels?
    02-17-2016 10:47 PM
  5. faith3935's Avatar
    I don't see any bright spot - could be too small for your camera to pick up. Have you tried using Hardware Tests and check if your screen has any dead or out-of-order pixels?
    No not yet. I'll have to try it.
    gpobernardo likes this.
    02-18-2016 07:27 AM
  6. faith3935's Avatar
    I tried it out and it turns out it is a bright spot on the screen after all
    gpobernardo likes this.
    02-23-2016 08:22 AM
  7. pankaj981's Avatar
    It could be a manufacturing defect with the clear black polarizer, check if you could exchange it.
    gpobernardo likes this.
    02-23-2016 08:52 AM
  8. faith3935's Avatar
    It could be a manufacturing defect with the clear black polarizer, check if you could exchange it.
    Gotcha. Is there any number that I can call?
    gpobernardo likes this.
    02-23-2016 10:04 AM
  9. libra89's Avatar
    You'll probably have to take that up with Microsoft Microsoft Lumia 640 - Warranty and repair - Microsoft - USA

    Check out that link.
    faith3935 and gpobernardo like this.
    02-23-2016 10:19 AM
  10. mewcatchew's Avatar
    I sent my 640 in for a repair of a bright spot, it came back with an even bigger bright spot. Wasn't happy at all. My advice is to pick up an AT&T 640 for $29 and switch out the screens. I believe it's caused by debris getting on the backlight, not a polarizer issue. This you could do yourself but there's always a chance you could screw it up messing around with it. The 640 isn't exactly vacuum sealed, and you can see what i mean when you take the back cover off and see where all the light leaks are. To prevent this I don't carry it in my front pocket anymore.
    02-23-2016 11:19 AM

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