Category Archives: Smartphones How-Tos

How to Block a Number on Your Samsung Galaxy Smartphone

In case you do not want to accept calls from a certain phone number, you can block them. If they try to call you, the phone will automatically reject the call.

We’re going to show you all the ways to block numbers from your Samsung Galaxy.

Block numbers from the Contacts app

Block numbers in samsung galaxy from the Contacts app.
Block numbers in samsung galaxy from the Contacts app

If you know who you want to block, you can block them from your contacts app:

  • First, open the contacts app
  • then tap on the contact you wish to block
  • Tap “More”
  • then tap “Block contact”
  • Tap “Block” to confirm

Block numbers from the Phone app

If you want to block numbers on Samsung Galaxy that’s not in your contacts:

  • first, open the phone icon
  • Tap the three vertical dots in the upper right corner
  • then tap “Settings”
  • Tap “Block numbers”
  • Enter the phone number you want to block
  • Then tap the plus sign to add the contact to your block list

If you would like to block a number that recently called, you could also go to the “Recents” section in the phone app and then:

  • tap the phone number you want to block
  • Tap “More”
  • then tap “Block contact”

Block unknown numbers on Phone app

To block unknown numbers from calling your phone:

  • Tap the phone icon
  • Tap the three red dots at the top of the screen
  • Then tap “Settings” in the drop-down menu
  • Tap “Block numbers”
  • then toggle the button beside the “Block unknown callers” to green

In this guide we answer the question of how to block numbers on Samsung Galaxy phones.

Apps to Measure the Performance of Your Smartphone

Applications that measure the performance of your mobile: When you buy a smartphone you make sure that it has good technical specifications. Still, you should know that you can test its operation and check the performance of your phone through some simple apps.

What parameters do you measure to know how well your cell phone performs?

The fundamental elements for your smartphone to work in an optimal way are: the processor, the CPU, the RAM and the ROM, all of them intervene so that the processes that are carried out in your phone are carried out in a fluid way.

How do the applications that measure the performance of your mobile work?

What these applications do is take your smartphone to the limit.

For exemple: they start executing a series of processes that require the maximum effort from your phone so that you can check how it responds before the actions it has to perform on a daily basis.

The best applications to measure the performance of an Android


This application is one of the most popular for performance testing on your Smartphone. It has already launched several ever-improving versions that measure more and more parameters of the mobile. Download AnTuTu on your Android and try it out.


The 3DMark app is specially designed for all those who play a lot with their mobile. 3DMark app focuses its tests mainly on two resources:

  • The CPU
  • The graphics card

Geekbench 3

This app is mainly dedicated to simulate the processes that you perform daily with your mobile, but taking it to the extreme to check its operation without any doubt and then, shows you the results of the analysis. It is especially interesting the study that makes the processor.

The best applications to measure the performance of an iPhone

Although we find less variety of applications for this purpose than in Android, the iOS operating system also has some apps to benchmark your smartphone.

Gensystek Benchmark

This application performs up to ten types of tests focusing on the different components of an iPhone. In addition, you can ask Gensystek Benchmark to send you the result of the analysis by email to check the result carefully.

Other applications to measure performance on an iPhone

Besides Gensystek Benchmark, you will find for iPhone the versions of AnTuTu and 3DMark.

If you suspect that your phone is not performing at its best, we recommend that you use more than one application to get several results and compare them. And, if your smartphone is indeed underperforming, switch phones. Dont forget to check your new phone with apps to Measure the Performance of Your Smartphone.

6 Tips to Make Your Android Phone Faster

Android phones, especially older ones, can be slow or crash after prolonged use or accumulation of apps. However, some measures promise to ease the “burden” of age and alleviate performance issues and make your phone faster. In some cases, battery life can also be positively affected.

Fortunately, most of the following tips can be done on the system itself, without the need to install additional applications. However, in some cases, there are programs that can help you achieve more satisfactory results. In this tutorial, you’ll find six tips to make your Android run faster.

Remove unused applications

It may seem like a very simple tip, but it’s true that it makes a difference. Even if you do not use them, the apps installed on your phone can consume a large amount of memory or even run without your knowledge. Therefore, it is better to get rid of them. See how you can do it without installing anything:

  1. Go to “Settings > Applications”;
  2. Select the desired application, and tap “Uninstall”.

If you need help finding the apps you no longer use on your device, Google has an application called “Files” to help you. Follow these steps to use it:

  1. Download the application through this link;
  2. When opening it, slide the screen down until you find the option “Find unused apps”. When accessing it, it will ask for a special configuration. Touch “Go to settings > Files” and enable the option “Allow usage tracking”;
  3. Go back to the app and access again the option “Find unused apps”. In this screen, just select the desired app and touch uninstall. You can remove more than one application at a time;

Prevent apps from initializing along with the system

Another fairly common problem with Android’s slowness involves apps that start along with the system, regardless of whether they are in use. Unfortunately, the system doesn’t provide an easy way to identify and disable them. But the Startup Manager apps promise to help with this task. Try it out:

  1. Download the application through this link;

When disabling an Android startup item, be careful not to remove essential applications that might affect the system’s operation. Prefer the User tab, which lists only the less important applications, while the System tab contains the essential services.

Contrary to what you might imagine, using this tool does not require root. If you still feel confident, you can create a startup profile via the Customize tab and allow only the highlighted apps to start when you turn on the phone. In any case, avoid using the Disable All option.

Disable animations

Depending on the processing power of your smartphone, it is possible that Android animations cause some slowness at certain times, such as screen and menu transitions. By default, there is no option for this in the system settings, unless developer mode is enabled. See how you can do this:

  1. Access the settings screen and go to “About phone”;
  2. Under “Software information”, tap seven times on the “Build number” option.

Ok, now that the developer mode is active we can disable the animations. Follow these steps:

  1. Access the “Settings” screen and go to “Developer Options”;
  2. Look for the “Animation Scale” options and set them as ” Animation Off”.

That’s it! If you want to activate the animations again, just follow these above steps.

How to Make Your Android Phone Faster 2020

Depending on the manufacturer, Android has a different interface. Motorola, for example, includes an almost pure Android, while Samsung includes a customized version with TouchWiz. These system customizations ultimately affect performance. However, some launchers can lighten the phone’s resource load. Here are some suggestions:

  • New Launcher – Highly customizable, this app brings options for those seeking performance without giving up support for essential features like widgets;
  • Action Launcher – With a simpler interface, this application allows the user to customize various aspects of the home screen;
  • Microsoft Launcher – With a clean and fluid interface, it also brings options to synchronize activities between the smartphone and the PC.

Clean temporary files to make your Android phone faster

When they use Android apps, they store some files on the system to help them work faster on a day-to-day basis. However, the accumulation of these files leads to some slowness. To delete them in an easier way, you can use the Files by Google app, which we also used for the first tip of this tutorial. Give it a try:

  1. If you have not yet downloaded File Go, download it through this link;
  2. In your home screen go to “Temporary apps files”, select the items and go to “Delete”.

Files by Google cleans files from the system cache. It is also possible to delete cache files by the Android system itself without external programs, but Files by Google app presents this option in a more efficient and convenient way for the user.

Disabling pre-installed apps to make your Android phone faster

Manufacturers that equip their smartphones with Android often include pre-installed applications that cannot be removed without rooting the device. However, you can disable some of them to avoid them running in the background and consuming device resources. Now let’s take a look at how you can disable such applications:

  1. Access the “Settings” screen and go to “Applications”;
  2. Look for an application that came “pre-installed” and tap the “Deactivate” option.

This way, even if the application is not removed, it will not work. This way you’ll have more RAM available for the rest of your activities.


Huawei is still working to launch Harmony OS as soon as possible. This is the name given to its new operating system for mobile devices (tablets and smartphones), with which the Chinese company hopes to completely displace Android.

The reason why Huawei has decided to adopt this strategy can be found in the restrictions it has been receiving from the Trump Administration. Now that it has been confirmed that Biden has won the election, we might think that Huawei could rethink this approach, and choose to continue with Android, but seeing all the money the company has invested and the problems that its dependence on the United States has brought, it seems unlikely.

Barring any last minute changes, which would be a huge surprise, all things considered, Harmony OS will most likely be here to stay. Huawei has confirmed that 90% of its terminals will make the jump to Harmony OS. So far, a total of 42 devices have been confirmed as “compatible” with that operating system:


  • – Huawei Mate 40
  • – Huawei Mate 40 Pro
  • – Huawei Mate 40 Pro +
  • – Huawei Mate 40 RS Porsche Design
  • – Huawei Mate X
  • – Huawei Mate Xs
  • – Huawei P40
  • – Huawei P40 Pro
  • – Huawei P40 Pro +
  • – Huawei Mate 30 4G
  • – Huawei Mate 30 Pro 4G
  • – Huawei Mate 30 5G
  • – Huawei Mate 30 Pro 5G
  • – Huawei Mate 30 RS Porsche Design
  • – Huawei Nova 8
  • – Huawei Nova 8 Pro
  • – Huawei Nova 7 Pro 5G
  • – Huawei Nova 7 5G
  • – Huawei Nova 7 SE
  • – Huawei P30
  • – Huawei P30 Pro
  • – Huawei Mate 20
  • – Huawei Mate 20 Pro
  • – Huawei Mate 20 X 4G
  • – Huawei Mate 20 X 5G
  • – Huawei Mate 20 RS
  • – Huawei Nova 6 5G
  • – Huawei Nova 6 SE
  • – Honor V40
  • – Honor 30 Pro
  • – Honor 30 Pro +
  • – Honor V30
  • – Honor V30 Pro
  • – Honor Play 4 Pro
  • – Honor X10 5G
  • – Honor 30
  • – Honor 30S
  • – Honor X10 5G
  • – Honor 20 Pro
  • – Honor 20
  • – Honor 9X
  • – Honor 9X Pro
  • – Huawei Watch GT 2 Pro
  • – Huawei Watch GT 2e
  • – Huawei Watch GT 2
  • – Huawei MatePad Pro
  • – Huawei MatePad Pro 5G
  • – Honor Tablet V6

According to the company, the first developer beta of this system will arrive on December 18. In addition, it is said that, by April 2021, the first public beta should already be available.


How to take a screenshot on Mac?

If you are looking to make a screen capture on a MacBook or iMac, the operating system already provides the tools required. With the help of a few hotkeys you can come up with a variety of different screenshots. Below we explain which combination of keys you need to press in order to create a screenshot on mac.

The essentials in brief:

  • Entire screen + save file to desktop: [Shift ⇧] + [Cmd ⌘] + [3].
  • Selected area of the screen + save file to desktop: [Shift ⇧] + [Cmd ⌘] + [4].
  • Capture the entire screen + copy to clipboard: [Control ^] + [Shift ⇧] + [Cmd ⌘] + [3] using the key combination [Cmd ⌘] + [v] insert the screenshot in the chosen location.
  • Capture a selected area of the screen + copy to clipboard: [Control ^] + [Shift ⇧] + [Cmd ⌘] + [4] using the key combination [Cmd ⌘] + [v] insert the screenshot in the chosen location.

How to take a screenshot on a Mac

Apple devices don’t have a ‘Print Screen’ button. It allows Windows users, with one single press of a button, to make a screenshot of everything on display on a monitor. Apple users will always need to press a combination of buttons (a shortcut) to make a screenshot on a Mac. There are different buttons depending on which area of a macOS or OS X you wish to make a screenshot of.

  • Entire screen: You can make a screenshot of the entire screen by pressing [Shift⇧] + [Cmd] + [3].
  • Rectangular area: Press [Shift⇧] + [Cmd] + [4] to grab a rectangular section of a screen. In this case, the mouse pointer will turn into a crosshair cursor. First, move the cursor to where you would like to begin the screenshot. Then click and pull to the desired size before releasing the mouse again. The screenshot will then once the mouse is released. If you wish to cancel the screenshot, simply press the Esc button.
  • Window: If you wish to capture an entire window (and nothing else) as a screenshot, then you should also be pressing the button combination of [Shift⇧] + [Cmd] + [4]. Once again, your mouse will transform into a crosshair cursor. Now by pressing the spacebar the cursor will become a camera symbol. Simply click on the window that you wish to make a screenshot of. This process can also be cancelled at any time by pressing the Esc button.
  • Menu: Even a menu can be saved separately as a screenshot on a Mac. To do this simply open the menu and press [Shift⇧] + [Cmd] + [4]. Using the cursor, click on the menu and create your screenshot. However, this will not save the title of the menu. This can only be done if, prior to clicking your mouse, you transform the pointer into a crosshair cursor by pressing the spacebar. Now when you click on the menu, the title will also be a part of the screenshot. Like with the other options, you can cancel this process by pressing the Esc button.
  • Touch Bar: As of 2016, MacBook Pros are fitted with an additional navigation bar – an OLED touch screen known as the Touch Bar. It is also possible to make a screenshot of this display. A requirement for this is that you have the macOS Sierra 10.12.1 or later. The shortcut key for this form of screenshot – as the Touch Bar is located underneath the actual monitor – is [Shift⇧] + [Cmd] + [6]. (It is also possible to install a button in the Touch Bar specifically for the creation of MacBook screenshots.)

All screenshots will automatically be saved on your desktop as a PNG image file. The naming of the file is also done automatically by the operating system. All file names begin with the word ‘Screenshot’ followed by the time and date that it was created.

It is also possible to copy the screenshot to the clipboard, instead of turning it into a file. By pressing the [Ctrl] button the Mac will store the screen grab in the clipboard. From here it is easier to transfer it to a word and image processing program that you might be working with. This process works with all Mac screenshot shortcuts.

Grab tool: additional way to take a screenshot on Mac

If you wish to take screenshots on your Mac without using shortcut keys, the Grab tool comes in handy. This software is already installed on every Mac operating system. It can be found either in the ‘Utilities’ folder under ‘Applications’ or by using the ‘Spotlight’ search function. This helpful tool is easy to use and can be operated using the menu taskbar. Here you can select which area of a display you wish to save as an image file. Generally, you have the same options as with the keyboard shortcuts: entire screen, a selected window, or a self-determined section.

In addition to this, the software also has a timer function. This makes it possible to make changes on the screen before the screenshot is actually taken. For example, this is very useful if you want to capture the mouse cursor.

Each time the screenshot will appear in a new window. You can then decide what to do with it next – enter the name of the file and then select where it should be stored.

Furthermore, you can also use the Preview tool when creating screenshots. In the program that you would normally use to open images and PDF files, you will find a ‘Create PDF’ option. This option allows you to create 3 types of PDF: ‘From Screen Capture’, ‘From Window Capture’, and ‘From Selection Capture’. The screenshot can then be edited directly in the preview or saved in the various formats.

Common problems when making screenshots on a Mac

Sometimes taking a screenshot on a Mac doesn’t work. This usually has something to do with the program that you are attempting to display. For example, Apple has a configuration that makes it impossible to take a screenshot while the DVD player is running. For copyright reasons, Apple has made it impossible to make screenshots while the playback software is running. This is the case even if you have no desire to include any part of the movie in your screenshot.

To produce a screenshot (of material with which you are making no copyright infringement), there are two roundabout ways of doing this:

  1. Use an alternative playback program. Mac will not prevent you from making screenshots if you use a different software for playing films and videos.
  2. Use a different screenshot program. The limitation outlined above applies only if you wish to produce and edit screenshots directly with macOS or OS X software. There are also third-party providers that offer free software for making screenshots on a Mac.

How to take screenshots on Android phones

A picture is worth a thousand words and it is also easier to share. That is the reason why the popularity of screenshots on Android phones is increasing. The functionality was officially introduced in Android 4.0, although some customization layers, like Samsung’s, had it before.

Now, the million dollar question is how to take a screenshot on my Android phone? The answer is the same as with any other question concerning Android: it depends. Different manufacturers have devised different ways of taking screenshots. Here you will find the instructions for most Android phones on the market today.

Default way to take screenshots

The official way of taking a screenshot on Android has not changed for the last five years. You must simultaneously press the power and the volume down buttons. Usually, a flash on the screen and a sound will notify you that a screenshot has been taken.

Several manufacturers respect this method, but not all. As you will see below, there are many ways to take screenshots on Android phones. This indicates that Android fragmentation is a real barrier to a consistent user experience.

The general rule

We have already seen the official way, but not all phone manufacturers comply with it. Instead, there is another premise that (almost) always holds true, although it is more flexible. To take a screenshot on the vast majority of Android phones you must press two physical buttons at the same time.

Taking into account that there are generally three or four physical buttons: power, home, volume up and volume down, leaves us with five possibilities:

  1. Power On and Volume up
  2. Power On and Volume Down
  3. Start and Volume Up
  4. Start and Volume Down
  5. Power On and Start

Almost certainly one of these combinations will take a screenshot on your mobile. In all cases, it is necessary to press both keys at the same time and hold them down for at least one second.

Screenshots with Google Assistant

Now that many Android devices support Google Assistant, you have a new way of taking screenshots at your disposal. It is not the fastest way. However, if for some reason it is not possible to use other methods it is a great option.

To take a screenshot with Google Assistant, you must launch it either by long pressing the Home button or by voice command. If you are in an application and not on the Desktop, one of the options to choose is called Share screenshot.

This method has a disadvantage – the screenshot is not saved in the Gallery of your mobile. Right after taking it, you must choose who you want to send it to with applications such as WhatsApp or Messenger.

Screenshots on Samsung mobiles

Samsung has an arsenal of models on the market and consequently there are differences in the way screenshots are taken. The classic way of taking a screenshot is with a simultaneous press of Power and Start buttons.

However, the latest Samsung devices do not have a physical home button. So, it is also possible to take a screenshot with the standard Android method. Simultaneously pressing Power and Volume Down buttons. This is possible even in older devices with a physical start button, which support both combinations.

Another way to take screenshots on Samsung phones is by sliding your hand vertically on the right edge, sweeping the screen. This method must be activated in the mobile settings for it to work.

Screenshots on Sony mobiles

Sony has a slightly different method of taking screenshots from other manufacturers. You must first press and hold the Power key until the shutdown pop-up menu opens. One of the options available is Screenshot. Tap on it to capture.

The default Android way of taking screenshots is also available on Sony devices. That is, you can simultaneously press the Power and Volume Down buttons.

Screenshots on LG mobiles

LG uses the standard Android system to take screenshots. That is, you must simultaneously press the Power and Volume Down keys. The only difference is that in this case the power key may be at the back of the phone.

Screenshots on Huawei phones

Another brand that offers an Android standard way of taking screenshots, is Huawei (at least in its latest models). To take a screenshot, simultaneously press the Power and Volume Down buttons. In some models it is also possible to take screenshots by tapping your knuckles twice, as if you were knocking on the door.

Screenshots on Xiaomi mobiles

Xiaomi has also opted for the standard Android method to take screenshots, both in its MIUI system and stock Android devices. The method is the same: simultaneously press the Power and Volume Down buttons.

Screenshots on HTC mobiles

On HTC phones you can use the traditional Android method to take screenshots. That is, simultaneously pressing the Power and Volume Down buttons. If you think that this combination is a bit backwards, you’re probably right. Many classic models with a physical home button also allow you to take a screenshot by pressing the Power and Home buttons.

Screenshots on ASUS mobiles

Screenshots on ASUS mobiles are taken with the standard Android button combination. That is, you must simultaneously press the Power and Volume Down buttons. The only thing you have to keep in mind is that, in older models, the volume buttons are on the back.

Screenshots on Motorola mobiles

It does not matter if you own the old Motorola mobile or Lenovo’s Motorola, because the method to take a screenshot is the same. You must simultaneously press the Power and Volume Down buttons. An animation and sound will notify you that the screenshot has been taken.

Screenshots on BQ mobiles

The Spanish / Vietnamese brand BQ offers the standard method for taking screenshots. So all you have to do is simultaneously press the Power and Volume Down buttons to take a screenshot.

Screenshots on OnePlus mobiles

OnePlus joins the majority by adopting the standard mode to take screenshots on Android phones. That is, by simultaneously pressing the Power and the Volume Down buttons, which in this case are at opposite edges.

Screenshots on Nexus / Pixel mobiles

As you might expect, Google follows official Android rules. To take a screenshot, follow the usual procedure. Press the Power and the Volume Down buttons simultaneously until an animation and sound notify you that the screenshot has been taken.

Screenshots on Nokia mobiles

Nokia has opted for stock Android for its mobiles. So, it is not surprising that the way of taking screenshots on this phone is straightforward. To take a screenshot on a Nokia mobile, press the Power and the Volume Down buttons simultaneously.

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