Maybe you used the "children's mode" in a predecessor model of the Samsung Galaxy S7, in which the smartphone turns into a child-friendly platform and is suitable for children.

You will find this children's mode on the Samsung Galaxy S7 in vain. Why? This is not preinstalled from the factory. However, we will explain how to install and use the children's mode on the Samsung Galaxy S7.

The children's mode can only be downloaded via the Galaxy App Store. Please open the application "Galaxy Apps", which is located in the Samsung folder in the app menu. Go to the "Galaxy" tab of the store, and then click "Show more" on "Galaxy Essentials".

Scroll down until you see "Child Mode". Tap the download button to start downloading the children's mode. You will find this in the app menu of your Samsung Galaxy S7.

Touch "Child Mode" to set up and configure it.

You now know how to find and use the children's mode on the Samsung Galaxy S7.

The Samsung Galaxy S7 can be easily restored to factory settings in the Android system settings. However, it can be natural that the system does not charge anymore and therefore you have to put the smartphone into the factory state by means of a key combination.

In this guide, we will describe exactly how you can carry out a factory reset by means of a key combination.

1. First, you must shut down your Samsung Galaxy S7 completly.

2. You must now activate the recovery mode. Press and hold at the same time:

• Power On / OFF
• Volume louder
• Home button

Hold down the key combination until an Android figure appears on the display. Then release the power button ONLY. The other two buttons must still be pressed.

3. The Recovery menu appears on your display. You can now navigate as follows:

• Volume Up: Scroll Up
• Volume Down: Scroll Down
• Power Button: Enter

4. Press the volume buttons to highlight "Wipe data / factory reset"

!!! All data is deleted on your Samsung Galaxy S7 and Android is completely reinstalled.

5. Confirm the security prompt with "Yes" and the factory reset will be applied to your Samsung Galaxy S7.

You have now learned how to use a keyboard shortcut to perform a factory reset and reset the device to factory settings.

When you receive a call on your Samsung Galaxy S7 Edge, the smartphone may vibrate to notify you in addition to the ring tone. If you do not want the device to vibrate during a call, you can turn off the vibration in the Android settings as follows.

Navigate from the Samsung Galaxy S7 Edge start screen:

App Menu --> Settings --> Sounds and Vibration

Here you will find the option "Vibrate when ringing". Use the slider to turn off the option on your Samsung Galaxy S7 Edge. Then the smartphone will not vibrate when a call comes in. If you want to deactivate the vibration only for incoming calls, but not for SMS messages, you must leave the slider "active" and instead navigate to the next submenu "Vibrating intensity".

Here, you can now set the vibration to "Off" for incoming calls by moving the slider all the way to the left. This keeps the vibration for SMS messages, but disables it on calls.

You now know where you can find the various vibration settings on the Samsung Galaxy S7 Edge within the Android operating system.

The user interface within Android on your Samsung Galaxy S7 is Touchwiz and was equipped by Samsung with its own menu and own functions. Unfortunately, it can happen on the Samsung Galaxy S7 that TouchWiz is causing problems, such as "TouchWiz stopped", etc.

If you have problems with the TouchWiz user interface on your smartphone, please proceed as follows to solve the problem:

Navigate from the starting screen of the Samsung Galaxy S7 to:

Menu --> Settings --> Applications --> Application Manager

Now click on "More" in the upper right corner and select "Show system applications". Look for "TouchWiz Home" in the list. If you found the entry, tap it to display the app info. Select "Memory" here. You now see two different buttons:

• Delete data
• Clear cache

Now select "Delete data". Perform the same operation for "TouchWiz Start". Attention! This process deletes folders you created for apps, and displays all apps in alphabetical order.

Then return to the application manager and tap "More" again in the upper right corner. This time, however, select "Reset app presets". After you have also done the process, restart the Samsung Galaxy S7.

There should be no bug with Touchwiz on your Samsung Galaxy S7 anymore after that procedure.

On the Samsung Galaxy S7 you can open functions and secret menus by using certain codes, which you enter into the phone app of the device. We would like to present below the 5 most important secret codes for the Samsung Galaxy S7:

Phone Code: *#0*#

This code shows the service menu on the Samsung Galaxy S7. You can run many different hardware tests and function tests in this menu, which then check the functions on your smartphone for correct function. Here, for example, the calibration of the compass, the height sensor and many other sensors can be checked.

Phone Code: *#7353#

Another service menu for checking different sensors and the camera.

Phone code: *#9090#

This code is used to call up the service mode of the Samsung Galaxy S7. Tests should only be carried out if the effects are known.

Phone code: *#06#

This code is used to quickly and easily find the IMEI serial number of your Samsung Galaxy S7.

Phone Code: *#0808#

Here you can change the USB options of your Samsung Galaxy S7. For example, you can change the USB mode from MTP to PTP etc. Keep in mind that settings that are made here can affect connectivity with the computer via USB.

You now know the 5 most important phone codes that you can run on your Samsung Galaxy S7.

Even if you have on the Samsung Galaxy S7 almost never the problem with the "red eyes" after taking photos with the camera, it may still be necessary to perform a red-eye correction.

Fortunately, everything is already on board of the Samsung Galaxy S7 and we explain to you here now, how to proceed with it exactly. Open the app menu on your Samsung Galaxy S7 and then the gallery application, which is installed on the smartphone.

Then let's view the image you'd like to edit with red-eye correction. Proceed as follows:

1. At the bottom of the screen, click "Edit"

2. The image editor opens. In this section, click on "Portrait"

3. On the far right you can see "Red Eyes". Tap the function and it will detect the eyes of the people on the picture.

4. Now tap the eyes of the figure to remove the red eyes.

5. In the upper right corner, click on "Apply" and then on "Save". Done!

You have just successfully done a red eye correction on a photo on your Samsung Galaxy S7.

If you have created a ".nomedia" file on your Samsung Galaxy S7 to exclude a folder from the Android media scanner, you may notice that pictures and videos are missing in the gallery.

The background is probably the fact that you created the nomedia file within an incorrect folder, or that you moved or copied it. But do not worry, because you can check if a .nomedia file is hidden in one of your picture folders.

To do this, you need the following app on your Samsung Galaxy S7: ES File Explorer

After downloading the app to your smartphone, open the app. In the upper left corner, tap the three-bar icon to display the File Explorer menu. Scroll down completely in this menu and activate the slider "Show Hidden Files".

Now you can search for the picture folder, which is no longer visible on your Samsung Galaxy S7 and possibly hidden by a nomedia file. If you found the .nomedia file, delete it so that you can make the picture folder visible again in the Android Gallery. Done!

You now know how to display a picture folder that was accidentally hidden by a nomedia file and is no longer visible in the gallery on the Samsung Galaxy S7.

If you like to save battery power with your Samsung Galaxy S7, then you will probably also use the energy saving mode, which is standard on board. Now it can be that you receive no more WhatsApp messages, if the Samsung Galaxy S7 is in standby.

This can be caused by the energy saving mode of the Samsung Galaxy S7. Because there is the option "Restrict all background data". If this option is enabled, various apps that require access to Wi-Fi or your mobile data connection are no longer working properly. This includes WhatsApp.

So if you notice that your WhatsApp messages are no longer up to date on the Samsung Galaxy S7, please check if the above function is disabled. To do this, open the following submenu on the smartphone:

Homescreen --> App Menu --> Settings --> Battery --> Energy Saving Mode

Now deactivate the "Restrict all background data" option by setting the controller to "inactive". Your Samsung Galaxy S7 should then again receive as usual all WhatsApp messages, even if your smartphone is not actively used.

You can change the input mode on the Samsung Galaxy S7 for text messages. The following input modes are available: GSM alphabet, Unicode and Automatic. Depending on the mode in which you want to send your SMS messages, you must make the right setting within the message app.

We will show you where you can change the input mode for text messages on the Samsung Galaxy S7:

From the home screen of the smartphone, go to:

Menu --> Settings --> Applications --> Messages --> More Settings --> messages

In this submenu you will find the entry "Input mode". Tap this and you can then select from the following three options for your Samsung Galaxy S7:

• GSM
• alphabet
• Unicode
• Automatic

GSM alphabet is entered here maybe as standard. This can lead to problems with the display of your sent SMS on other smartphones. If this is the case, we recommend to send the input mode for SMS to "Automatic".

You now know how to change the input mode for SMS messages on the Samsung Galaxy S7.

On the Samsung Galaxy S7, you can easily call a contact or create a text message by simply dragging the entry left or right. To do this, you must first activate this function in the phone settings.

In this article we explain how to do this:

1. Open the phone app from the start screen of the Samsung Galaxy S7.

2. Select "More" and then "Settings" from the top right of the screen.

3. Same as above in the phone settings you will see the option "Swipe to call or send messages". Activate the option by using the slider. Afterwards, you can simply swipe to the right within the message app to call a contact, or swipe to the left to write a message.

This is a nice little feature on your Samsung Galaxy S7 which is quite often used.