WITH iOS versions 7.0 iPhone introduced color inversion. This function completely reverses the colors - black becomes white, white becomes black. This mode helps people with low vision who need high contrast to read.

You may ask, why do we need this function if we see well? I found a great use for it. I wrote that I really like to read various articles and news at night. But my other half prefers complete darkness to sleep, and the glow of the phone irritates her. In that article, I was able to reduce the screen brightness further than allowed standard settings phone. But to be honest, brighter text is easier to read. I continued my search for the optimal mode for reading at night.

I found it! This is an inversion of color. The entire background turns black and the black letters turn white. At the same time, it is very pleasant to look at the phone in the dark, the glow does not hurt the eyes, the letters are very easy to read, and at the same time there is much less light, the eyes do not get tired at all. My wife is completely satisfied with this.

How to enable this feature:

1) Settings – Basic - universal access – Color inversion on/off

2) For more convenient use, I configured this function to triple-click the Home button: Settings – General – Accessibility – Keyboard shortcut – Invert color

During the day, the “Invert Color” mode is not convenient to use, but at night it is very comfortable for the eyes to read text on the iPhone screen.

P.S. This mode completely inverts all colors, not just black and white, so all pictures and videos are also inverted. Recommended for reading black and white text only. Take care of your eyesight.

P.P.S. Trying to take a screenshot of the screen in color inversion mode will not yield any results. The screenshot will be taken in normal colors.

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The phone screen has turned black and white and everything on the display looks like a negative? On this page you will find instructions on how to set up color inversion on Xiaomi Mi A2 Lite with Android 8.1 and similar Android devices and make the screen return to color. The color inversion function on Android can be turned on purely by accident by you or someone else, for example, children tinkered with the settings and turned it on.

Why do you need color inversion on your phone? When this function is activated, battery consumption will be significantly reduced, which will extend the operating time of the smartphone for a long time. This function is rarely used by anyone, and they only find out about it when they themselves encounter a problem when the screen colors become black and white or like in the negative. Since the Xiaomi Mi A2 Light runs on Android, the information about setting up color inversion should apply not only to Xiaomi smartphones and tablets, but also to other Android devices.

To make the screen color again Android Xiaomi and similar ones we open "". To get into the settings, call up the menu for quick access To useful functions pull your finger down from the top edge of the screen (swipe) and select the gear-shaped icon.

In the settings that open, select " Specialist. possibilities" (you may have to scroll down the list).
Next, opposite the “” item, move the slider. To make it clearer, look below at the attached screenshots where the necessary points are highlighted in the pictures. If you have activated this function then turn it off and return the color screen, and if you need to activate it, turn it on.

I hope the information on how to set color inversion on Xiaomi was useful and you were able to return a color screen to Android. Don’t forget to leave a review and indicate the model of the device to which the information above fits or not, so that other owners of smartphones and tablets will receive useful information from you.

• We will be glad if you add feedback or share useful information.
• Thank you for your responsiveness, Additional information and useful tips!!!

Sometimes even the minimum display brightness is excessive for reading in the dark. The screen still continues to dazzle and greatly tires the eyes. About how to set up the so-called night mode for reading, browsing, or using other applications at night, read below.

In some modified builds of Android, as well as Blackberry and iOS, there is a so-called inverted mode, which, as the name suggests, inverts the colors to the opposite ones, or in other words, creates a negative image.

If we assume that text on websites and in general is usually placed on a light background, then inverting, in principle, should work like a night mode. The problem with this mode becomes obvious when it also inverts the dark color to white and therefore creates new bright areas on the screen that interfere with the use of the device in the dark.

Inverted mode usually inverts images, which is why they often change beyond recognition.

Ideal night mode

Ideally, night mode should invert only light tones into dark ones, leaving only text on the page as white, while ignoring pictures, and muting them if possible (perhaps even converting them into monotone images).

In practice, we have both the complete absence of such a mode in most versions of Android, and its incorrect implementation, when instead of smart inversion, a regular “negative” is used.

Of course, for various types of activities (reading, browsing, etc.) you can individually select applications that have a night mode, but this takes a long time, is not always possible, and does not solve problems with the interface of Android itself, which will blind your eyes when minimizing applications.

This is what the desktop looks like after enabling inverted mode. Too bright for the dark.

Screen Filter - reduces brightness below the minimum system level

Before using true night mode, you can try simpler options, such as further reducing the screen brightness.

Using Screen Filter, the brightness can be reduced to values ​​much lower than what the system allows. Moreover, somewhere at values ​​of 10% and below, the brightness becomes so low that nothing can be distinguished on the screen even in complete darkness.

Protection against inaccurate reduction in brightness is almost the same as when changing the resolution on video cards. If you do not confirm the selected value after 10 seconds, the brightness will be reset to the previous value.

At values ​​of approximately 40%, Screen Filter makes it much easier to work with the tablet in a dark room.

But at lower values, problems with contrast may already arise. The brightness of the screen continues to decrease, but with it the text stands out against the general background, which makes it more difficult to read.

Another advantage of Screen Filter is its convenient controls. One click on the icon and the brightness decreases, another click returns to the system value. Settings are configured in the notification panel.

As a bonus, lowering the brightness also results in increased battery life. True, different screens react differently to changing this parameter. Apparently, devices with Amoled screens will benefit the most in this regard.

CF.lumen - night mode and invert colors

CF.lumen requires root to run and is one of the few programs that allows you to enable inverted mode on Android at the system level.

By default the program uses auto mode adjusting screen color (not only brightness, but also warmth) depending on the time of day. To do this, the program needs to set the device location. We won't need automatic mode, but we will still have to specify the coordinates. To do this you need to turn on GPS, wait automatic detection coordinates, or indicate them manually on the World Map.

After this, you can go to the Master filter mode section, in which the color inversion mode is available. However, as the test showed, it is not the most convenient for reading, for the reasons already listed above: inverting pictures and black tones.

Here's what it looks like in practice. The bottom and top panels may not immediately catch your eye, but they are white and shine very strongly in the dark.

As it turned out, for working with the device in the dark, the so-called “red” mode is perceived much better by the eyes. In this mode, a red layer is superimposed on top of the image, which, together with the reduced brightness, is perceived by the eyes better than all other modes I have tested.

Perhaps the abundance of red in the screenshot causes rejection, and when viewing the picture you yourself have similar feelings, but in the dark it is in this mode that it is much more pleasant to look at the screen: your eyes do not hurt from bright light, you don’t have to squint, the text is perceived well, rather than low-contrast.

Red light is often used for illumination at night in cases where night vision is needed. This explains its mild effect on the eyes.

CF.lumen has the ability to adjust the brightness parameter, but not lower than the system values, so it is advisable to use the program simultaneously with Screen Filter. Perhaps not the most convenient option (although running two programs is not at all difficult), however, another equally correct and universal night mode for Android apparently does not exist yet.

CF.lumen + Screen Filter in action. You can look at such a picture in almost complete darkness from a normal angle without covering your eyes.

The CF.lumen application installs its own driver for color correction and the developer warns that it is strongly recommended to remove the driver when updating the system. Similar program V Play Market, which also requires root rights, warns that the device may not boot and will have to be reset. CF.lumen seems to be safer in this regard, but do not use the program if you do not know what it is about.

After Google updated the operating system Android system, we got a whole ton of new features. Here are some useful tricks and tips in this review from Dan Graziano.

Google recently introduced Android 5.0 Lollipop, the biggest update to Android yet. An updated version of the popular mobile operating system is slowly making its way to older devices. Here are some of the new ones Android functions 5.0 Lollipop you need to know about.

1. New Material Design

The first thing you will notice after updating to Android 5.0 Lollipop is new design interface. Thanks to “Material Design” operating system began to look neater and lighter.

2. New lock screen

Now notifications appear directly on your device's lock screen. For more detailed information about new blocking screen read this.

3. Hide sensitive content in notifications

Don't like it when everything is on display? Notifications can be turned off or configured to hide sensitive data.

Go to Settings and click on Sound & Notification, then select When device is locked at the bottom of the page.

4. Extend battery life with new battery saving mode

This feature in Android 5.0 Lollipop promises to squeeze an additional 90 minutes of battery life out of your device.

To enable the new battery saving feature, open Settings, tap Battery, then the Menu button (the icon with three vertical dots in the upper right corner) and select Battery saver.

More information about the new battery saving mode can be found.

5. Post a “Do Not Disturb” sign

When you change the alarm volume on your device for the first time, you'll notice a few new options just below the volume slider. They are a functional innovation called Priority mode.

By selecting “None”, turn off all notifications, and even the alarm clock. Priority mode will only show notifications that you have allowed. Go to Settings, tap Sound & Notification and select Interruptions to confirm your notification selection.

For more detailed information about the new Do Not Disturb feature, read this.

6. Adding trusted devices

You can set a Bluetooth or NFC tag as a “trusted device.” When the device is within range of your phone, you won't need to enter a passcode or password to unlock it.

To install this feature, go to Settings, select Security, then Smart Lock and Trusted Devices.

Please note that the Smart Lock option will only be available if the device has lock enabled secret code or a set. You can find more information at this link.

7. Now you can search in Settings

Can't find what you want in the settings menu? Android 5.0 Lollipop provides a search option specifically for Settings. Finally!

8. Use guest mode for friends

Do you lend your phone to friends or family members? You can now create multiple user profiles to hide your personal apps, contacts, and photos. There is also a guest mode for temporary users.

To create new modes, open the Notification menu and click on the “little man” in the upper right corner of the screen. Read this to learn more about user accounts.

9. Pin apps

There are other options if you don't want to use guest mode every time you give your phone to someone to play or use a specific app. New feature in Android 5.0 Lollipop allows you to pin a specific application to the home screen.

This feature is not enabled by default, but you can enable it by going to Settings, clicking on Security, then Screen pinning and clicking the On button.

Click on the Overview button (square button at the bottom of the screen) and open the application you want to pin to the screen. There will be a blue pin button in the lower right corner of the application overview. Click on it and confirm the action. To unpin an application: Press and hold the Back button and the Overview button at the same time.

You can learn more about screen pinning on Android 5.0 Lollipop from this article.

10. Access to improved quick settings

Menu quick settings(Quick Settings menu) has been improved in Android 5.0 Lollipop. There's now a slider to quickly adjust brightness, an option to lock screen rotation, a built-in flashlight, and much more.

You can see notifications by sliding down the notifications menu with one finger. To open the Quick Settings menu, simply swipe down again.

To learn more about the Quick Settings menu, check out this article.

11. Quick check of used traffic

One of the new features in the Quick Settings menu allows you to quickly check your traffic usage. Just open the menu and click on the network icon. It's pretty simple.

12. Adaptive brightness replaced auto-brightness

Previous Android versions provided for the function automatic settings brightness, which was adjusted depending on the ambient light.

Now this function has been replaced by the “Self-adjusting (adaptive) brightness” mode. This is similar to "auto mode", but you can choose the brightness as you wish. Once you've set the base brightness, Adaptive Mode will adjust it based on your surroundings.

13.Improved performance

One of the unobvious functions in Android update 5.0 is a transition to new Android Runtime, better known as ART. In short: the new runtime improves device performance and helps extend battery life.

14. High contrast text makes reading easier

The goal of a new (and experimental) feature in Android 5.0 is to make text easier to read. Text mode High contrast can be turned on as follows: go to Settings and click Accessibility.

15. You can invert colors

Also, in Accessibility settings there is an option Invert colors. Although not everyone will like it, it has clear advantages: reading text at night will become much easier.

16. Applications will remain in Overview after reboot

Did you know that the apps in the Overview menu will remain there even after you turn off or restart your phone? This is the honest truth. And now it's much easier to return to the apps you used.

17. Use “Ok Google” everywhere

While you still won't be able to use the "OK Google" command when the display is off (unless you have a Nexus 6, Moto X, or Nexus 9), the command now works inside most apps on Android 5.0.

To enable this command, go to Settings, click on Language & Input, and then select Voice input.

Next, click on the gear icon, Recognition “OK, Google” (OK, Google Detection) and Enable Google Now (enable Google Now) on any screen. You need to “train” the team by saying “OK Google” three times. In the future, you can use the command in most applications and on any screen.

18. Checking battery statistics

In addition to improving Android batteries 5.0 gives more information about its work. Go to Settings, select Battery and you can see approximately how much time is left until your smartphone's battery is completely drained. Once you connect your phone to a power source, it will show how long it takes to fully charge the battery.

19. More options for using NFC

Android Beam, first introduced in Android 4.0 Ice Cream Sandwich, has been improved with the release of Lollipop. Until this time, users could only share web links, contact information, directions and videos from YouTube, and now you can share anything you want.

Just select the content you want, attach 2 Android phone with NFC back to back and either tap the screen or select from the Menu Android Exchange Beam.

You can use NFC to copy data (such as apps and settings) from your old Android device to your new one. To learn more about this feature read this.

20. Don't let notifications interrupt your games

One of the most best features in Android 5.0 – new system notifications. They will no longer interrupt you while playing or watching a movie. Now text messages, phone calls and other events will appear at the top of the screen. You can react to the notification or dismiss it by swiping away.

21. Access to Flappy Bird clone

The mobile game Flappy Bird conquered the world in 2014. Having reached the top of the charts, she suddenly disappeared from Google Play Store – was deleted by the developer himself. To give the game its due, Google has added a Flappy Bird-like Android version of the game. You can read more about her.

To access it, go to Settings, tap About Phone, and then tap “Android version” several times. A lollipop will appear on the screen, the color of which can be changed with one click, and holding the picture will open the game.