Why Are There Black Margins On The Upper And Lower Edges Of The Screen Or The Edges Darker - Huawei P8 GRA-UL00 Faqs

P8 Smartphone FAQs
12.14 Why are there black margins on the upper and lower
edges of the screen or the edges darker?
On the theme screen, there are 2–3 mm black margins on the upper and lower edges of the
screen, or the edges are darker. This is a UI coverage effect instead of device fault and does
not affect the phone functions.
12.15 Why is the screen of my phone a little red, unclear,
or blurry?
Huawei phones (Honor 6 Plus or P8) use a special type of screens that have better contrast
and color gamut effects.
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12.16 Why does my screen automatically change or why
does my phone automatically open software?
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12.17 Why doesn't the touchscreen respond sometimes?
Check whether you open too many apps or open certain apps (for example, games) that
consume a large amount of memory resources. Close the apps and try again.
12.18 Why does the screen turn off during a call?
This is normal. When your ear or other object triggers the proximity sensor, the screen
automatically turns off to prevent misoperations. The screen turns back on when the object
Issue 01 (2015/03)
Huawei phones use the Negative LCD screens. Compared with the general LCD screens,
the Negative LCD screens feature darker dark state, brighter maximum brightness, and
brighter bright state. The contrast of the Negative LCD screens reaches 1500:1, which is
15% higher than that of the iPhone 6 Plus (1300:1). Therefore, the screens of Huawei
phones do not have the unclear and blurry problems.
The color gamut of the screens of Huawei phones is high. The color saturation is 85%,
which is 15% higher than that of iPhone 6 Plus (60%). Therefore, the color is more vivid.
This is a brand-new technology and can't be simply compared with common screens.
This phenomenon is normal and does not affect the phone functions.
If the screen automatically changes when your phone is charging or connecting to the
computer using a data cable, the voltage may be unstable, or the data cable or charger is
not original. Over-high voltage causes interference on the touchscreen. The touchscreen
may incorrectly detect touching actions. Therefore, use original charger or data cable
provided by Huawei.
Connect your phone to a Wi-Fi network. Go to Settings > Updater > Check for
updates. Check whether any system update notification exists. If yes, update your phone
to the latest version.
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