That actually depends on the type of display you have, and hence on the exact model of your phone.
AMOLED displays light up each pixel individually, with the amount of energy required per pixel depending on the brightness of the colour that the pixel is displaying. A fully white pixel will consume more energy than any other colour, and black pixels consume ...
If you go to Settings -> Battery Saver -> and turn Battery Saver on the buttons will turn off.
We need to be sure you are in the conserve mode by going to "advanced" and select "always (not recommended)".
The problem is that you phone will not automatically sync with this option in place (you can see a litle heart in the battery icon). But you can sync ...
Check so there is nothing that covers the proximity sensor. The purpose is to blank the screen when you hold the phone to your ear while in a call.
My dad had the exact same problem and he put a small piece of tape over the sensor (since the SIM card hatch didn't stay in place). Ones I removed the tape it worked great.
Well, as I said I would use double tap to turn on the phone, I currently use it on L930 and I had used it before on a Lumia 925
Also, I have searched your question and bellow is the answer:
How can I make my Lumia 950 XL screen timeout after "never"?
Well there's two parts to that answer:
First, there were some issues with the touchscreen on the Lumia 535 when it first came out, but it's since been fixed.
Second, the Lumia 535 does not have a high sensitive touchscreen like some of the higher end Lumia models meaning you can't use the phone using regular gloves. You shouldn't notice this during regular ...
There's a thread on the forums of WPCentral that seems like a similar issue: Screen Pixelated. Here are several options you have:
Check for any updates for your device
Do a hard reset, this can be done in two ways:
1. Through the interface:
Navigate to settings
Tap reset your phone
Confirm by tapping yes
2. Hardware buttons
Switch off your ...
Splash screens are not required for Windows Phone apps (7.5, 8.0 and 8.1), but they are recommended.
Developers use splash screen because it's hard to guarantee the startup performance of apps, especially on low-end devices such as the Lumia 520.
If the app does not have a splash screen, the user sees a "Loading..." message which is not as visually ...
To me you are describing the power button that turns off the screen.
if you go to lockscreen settings: Settings -> lock screen you can set 2 things:
Screen times out after:
to 15 minutes
this is the time the screen will turn off automatically when not used.
the 2nd option is:
Require a password after:
I have solved the problem. I got the solution from YouTube. It is like this:
Switch off phone.
Then press volume and power switches at the same time for 10 seconds.
Phone will vibrate and an exclamation sign (!) will appear on the screen.
Then press once the volume up, then volume down, then power switch and then volume down again.
Two gears will appear on ...
if you want to keep the screen to never turn off, such an option is only available in interop unlocked phones. tutorials are available on winphonehub.org . but, i seriously recommend you to not do such things as it might damage your device.
Most probably, the light isn't there because of a cost-cutting measure. BLU Win HD isn't a top-of-the-line phone and things like these are to be expected. However, I'm sure you'll get used to it in some time.
I just had the same issue about half an hour ago. I tried turning it off and it wouldn't work. I tried plugging it into my laptop to see if anything will show up on the file only to find that the folder was empty. Reading the previous person's response actually reminded me to try a soft reset. I just did it and my phone seems to be working normally.
If the problem persists, then you really only have two options:
Reset the phone to the factory settings and hope that it helps
Get the phone replaced under warranty
In both cases you will lose all of your data, so make sure that you have a backup.