iPhone 7(+) Bottom of iphone heats up when brightness is turned up

Discussion in 'iPhone' started by screene, Apr 19, 2018.

  1. screene macrumors newbie

    Joined:
    Apr 19, 2018
    #1
    the bottom of my iphone 7 plus (the part where the home button is located) heats up whenever the brightness is turned up past halfway. What could be causing this?
     
  2. chabig macrumors 603

    Joined:
    Sep 6, 2002
    #2
    High brightness requires more power. More power means more heat. It's just physics.
     
  3. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #3
    The LED lighting is not 100% efficient and makes lots of heat in the process of making light.

    It is OK for your device to get warm, it is the only way it can shed heat.
     
  4. Relentless Power macrumors Penryn

    Relentless Power

    Joined:
    Jul 12, 2016
    #4
    I would question your interpretation of ‘Heats’ up? Are you specifically referring to max brightness or slightly passed the halfway mark?
     
  5. screene thread starter macrumors newbie

    Joined:
    Apr 19, 2018
    #5
    Anywhere past the halfway mark, which includes max brightness.
     
  6. westislander macrumors member

    westislander

    Joined:
    Aug 17, 2011
    Location:
    Montreal, Quebec Canada
    #6
    Yeah that doesn't sound normal. How long after the brightness reaches the halfway mark or higher does it become hot? Every iPhone I've owned has had auto-brightness enabled and I've never noticed any heat build up in the area you described at any point after the halfway mark. I currently have an 8 Plus.
     
  7. screene thread starter macrumors newbie

    Joined:
    Apr 19, 2018
    #7
    Less than 2 minutes.

    Do you think there could be something wrong with the screen?
     
  8. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #8
    While the brightness is past haf, what are you doing with the phone. Is it idle or are you doing something?
     
  9. screene thread starter macrumors newbie

    Joined:
    Apr 19, 2018
    #9
    I’m doing basic stuff like checking my social media apps and/or streaming music. The area doesn’t heat up when the phone is asleep.
     
  10. imagineadam macrumors 65816

    Joined:
    Jan 19, 2011
    #10
    The bottom just above the home button all along the bottom of the screen is where the LED’s are positioned on the 7’s. Normal for it to get warm there with higher brightness. My 6 used to warm up on the top. They had the LED’s on the top that generation.
     

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