Galaxy S21 how-to guides help you use Samsung Galaxy S21(Galaxy S21, S21+, or S21 Ultra) effectively. So, your Galaxy S21 works for you as you expected, not the other way around.
About Galaxy S21 How-to guides
For most of Galaxy S21 owners, there is always something new. The smartphone is probably even more complicated than a PC.
Galaxy S21 how-to guides try to cover all aspects of using Galaxy S21: from customizing Galaxy S21 home screen to securing the lock screen, from charging the Galaxy S21 battery to speeding up the phone, from using a SIM card to tweaking mobile network settings, from unlocking Galaxy S21 to linking the phone to the PC. Anyway, we try to cover all.
Galaxy S21 owners have substantially different experiences with Android and Samsung One UI. So, all our Galaxy S21 how-to guides try to include detailed steps and many screenshots and they are organized as different sections. New users can easily follow the guides. Seasoned users may jump from sections to sections in each guide.
As a tradition, we assume the readers are “new” to Samsung Galaxy phones. So, most Galaxy S21 how-to guides also include the background section explaining the features before diving into the how-to section.
Camera-related guides are grouped in Galaxy S21 Camera Guides part and therefore are not repeated in Galaxy S21 how-to guides (although most of Galaxy S21 camera guides are also in the similar how-to style.).
The new features of Galaxy S21 (compared to Galaxy S20) are covered in the Galaxy S21 New Feature Guides part.
List of Galaxy S21 How-to guides
We release new Galaxy S21 guides regularly after they are vigorously tested (to avoid confusion). So, you will see this is a live list.
If you cannot find the guides you need, you may let us know in the comment box. We will try to release ay related guides earlier.
You may also ask any questions on using Galaxy S21 through the comments. The community will help you get a solution or find the answer.
Here is the list of released and coming-soon Galaxy S21 how-to guides.
You can use Samsung Smart Switch to migrate to Galaxy S21 from other Android phones or an iPhone easily. Most of your data can be easily copied to Galaxy S21.
This Galaxy S21 how-to guide shows you how to use Smart Switch to migrate to Galaxy S21 wirelessly (WiFi Direct), explains what data can be migrated, gives suggestions or solution on how to migrate data that cannot be migrated to Galaxy S21 directly.
Read on to learn more about how to migrate to Galaxy S21 …
This Galaxy S21 how-to guide explains everything you need to know on the layout of S21, S21+ or S21 Ultra. The name and function of each button, port, and components are illustrated in the front view and rear view of the three phones.
Read on to master the layout of Galaxy S21, S21+, and S21 Ultra …
This Galaxy S21 how-to guide explains everything you need to know on how to charge Galaxy S21 battery properly. The two charging modes (USB cable, wireless charging) are explained and illustrated with detailed steps. Questions related to charging Galaxy S21 battery, including the first time charging, disabling fast charging, overnight charging, topping up the battery, draining up the battery, are answered.
Read on to know more on how to charge Galaxy S21 battery …
This Galaxy S21 how-to guide explains the options for Galaxy S21 navigation buttons and navigation gestures, shows you how to enable and use navigation buttons on Galaxy S21, and how to customize Galaxy S21 navigation buttons layout.
This Galaxy S21 how-to guide shows you how to customize LED icons for individual contacts and apps, create your own LED icons in the LED icon editor, disconnect LED icons from some contacts and apps, and delete LED icons.
Read on to explore the LED icon editor app …
This Galaxy S21 how-to guide explains everything you need to know about using a SIM card on Galaxy S21: the supported SIM card size, eSIM support, insert or change SIM cards, use two SIM cards, and check SIM card status on Galaxy S21.
Read on to learn more about using SIM card on Galaxy S21 …
This Galaxy S21 how-to guide explained what the Galaxy S21 Home screen is, why you need it, the meaning and usage of all items you may find on the Galaxy S21 Home screen, and how to use gestures on the Galaxy S21 Home screen.
Read on to learn more about using the Galaxy S21 Home screen …
You cannot skip touchscreen gestures when using Galaxy S21. Even if you choose to use navigation buttons, you still need to use the touchscreen gestures for many operations on Galaxy S21.
This Galaxy S21 how-to guide explains the 8 supported touchscreen gestures on Galaxy S21 and demonstrates how to use them. Some advice on taking care of the Galaxy S21 screen is also covered.
Read on to learn more on how to use Galaxy S21 touchscreen gestures …
You need to understand the meaning of Galaxy S21 status icons and notification icons to use the phone properly and effectively. Galaxy S21 status icons and notification icons can tell you rich information about the status of the phone status, phone health, and notification from individual apps.
This Galaxy S21 how-to guide first explains the differences between Galaxy S21 status icons and notification icons, then explains the meaning of Galaxy S21 status icons and notification icons you may find in Galaxy S21, S21+, and S21 Ultra.
Check the guide to master the meaning of Galaxy S21 status icons and notification icons …
Galaxy S21 offers two sets of navigation gestures, and you can choose any of them and switch between them (or switch back to navigation buttons if you want) at any time.
This Galaxy S21 how-to guide explains the two sets of navigation gestures on Galaxy S21, how to use them, and how to switch between navigation gestures and navigation buttons on Galaxy S21.
Read on to master navigation gestures on Galaxy S21 …
You have to use the Galaxy S21 lock screen to secure your Galaxy S21 and control access to your phone and data.
This Galaxy S21 how-to guide explains the role of the Galaxy S21 lock screen, pages, layout, and the meaning of each item on the Galaxy S21 lock screen, and how to use gestures on the lock screen.
Read on to master the Galaxy S21 lock screen …
You can customize Galaxy S21 navigation buttons and navigation bar with NavStar (a module of the Good Lock app) if you are not satisfied with the default navigation buttons and navigation bar.
This Galaxy S21 how-to guide explains what NavStar is, how to install and enable NavStar through Good Lock, and how to use it to customize Galaxy S21 navigation buttons and navigation bar.
You need to lock Galaxy S21 screen to protect your data and privacy. Just like that, you need to close the gate or door of your home.
This Galaxy S21 how-to guide explains why you must lock Galaxy S21 screen, available screen lock types on Galaxy S21 and how to use them. The guide also explains the relationship and differences among PIN/password/password, smart lock, and biometric unlock (face or fingerprint).
Read the guide to learn to secure your Galaxy S21 with a PIN, or password or a pattern …
This Galaxy S21 guide explains what Galaxy S21 quick settings panel is, how to access the Galaxy S21 quick panel, the components in the quick settings panel on Galaxy S21, how to customize the layout of the quick settings panel, and how to add (and remove) buttons to Galaxy S21 quick panel.
Read on to use and customize Galaxy 21 quick settings panel …
This Galaxy S21 how-to guide explains how to power on, power off, and reboot Galaxy S21 even if the phone hangs and how to access the power-off menu.
Read on to learn to power on, power off, and reboot Galaxy S21, and use the Galaxy S21 Power-off menu.
You can hide Galaxy S21 password or PIN when you type them to unlock the phone. So, the prying eyes will only see dots instead of the actual characters.
This Galaxy S21 guide explains why you should hide Galaxy S21 password or PIN when typing and how to hide Galaxy S21 PIN and password when unlocking your phone or when you type them on any apps.
Read on to learn to hide passwords and PINs on Galaxy S21 …
The Galaxy S21 Side key is more than a power button (key) on Galaxy S21, and you can also customize some features of the Galaxy S21 Side key.
This Galaxy S21 guide explains what the Galaxy S21 Side key is, the functions of this key/button, and how to use and customize the Side key on the Galaxy S21, S21+, and S21 Ultra.
Read on …
You can use widgets on Galaxy S21 to instantly access some info or specific features of some apps instead of fiddling around the app.
This Galaxy S21 guide explains what widgets on Galaxy S21 are, how to add widgets to the Galaxy S21 Home screen, how to resize and customize widgets on Galaxy S21.
Read on to learn to use and customize widgets on Samsung Galaxy S21 …
Understanding the Galaxy S21 lock screen settings helps you secure the phone and improve your productivity. You can also customize the locks screen as you want after mastering the Galaxy S21 lock screen settings.
This Galaxy S21 guide explains all items on the Galaxy S21 lock screen settings page. Typical usage of some settings is also illustrated and demonstrated.
Read on to learn to use Galaxy S21 locks screen settings …
You can customize most aspects of the Galaxy S21 Home screen in the Galaxy S21 Home screen edit mode.
This Galaxy S21 guide explains what the Galaxy S21 Home screen edit mode is, how to use it, how to add/remove/manage home screen panels, and how to assign the one panel as the “home” of the Galaxy S21 Home screen.
Read on to learn to use Galaxy S21 Home screen edit mode …
22. How to set and resize photo size on Samsung Galaxy S21, S20, S10, and S9 without using any third-party apps?
This Galaxy S21 camera guide explains how to set photo size on Galaxy phones including Galaxy S21, S20, S10 and S9, how to use the Gallery app to resize photo size on these Samsung Galaxy phones, and how to revert back to the original photo size.
Read on to learn to set and resize photo size on Samsung Galaxy S21, S20, S10, and S9 using the Gallery app …
This Galaxy S21 guide explains the difference between the Android 12 update, One UI 4.0 update, and one UI 4.1 update for Samsung Galaxy S21, S20, and S10, then shows you how to update Galaxy S21 to Android 12. Finally, some questions you may have on updating Galaxy S21, S20, and S10 to Android 12, are answered.
This Galaxy S21 guide explains the top 12 new features in Android 12 update (One UI 4.1/4.0) for Galaxy S21, S20 and S10 to help you use these new features effectively on your Galaxy S21, S20, or S10.
Read on to explore the top 12 new features in Android 12 update for Galaxy S21, S20 and S10
#. How to use and customize the Galaxy S21 Always On Display (AOD) screen?
#. How to secure Galaxy S21?
#. How to back up Galaxy S21?
#. How to reset and factory data reset Galaxy S21?
#. How to use power saving mode on Galaxy S21?
#. How to use fingerprint to unlock Galaxy S21?
#. How to use Galaxy S21 face recognition to unlock the phone?
#. How to manage and customize ringtones on Galaxy S21?
#. and many more
Other Galaxy S21 How-to guides
In addition to Galaxy S21 how-to guides, you can also find many other Galaxy S21 guides in the following sections:
- Galaxy S21 new feature guides. These guides explain galaxy S21 new features and show you how to use them. Reviews of Galaxy S21 are also covered in this section.
- Galaxy S21 Camera guides. Everything you need to know on using Galaxy S21 camera is covered.
- Galaxy S21 Accessories guides. Detailed guides and reviews on accessories for Galaxy S21.
- Official Galaxy S21 user guides (PDF). You can download and read PDF version of the official Samsung Galaxy S21 user guides here.
The community has all guides you need for your Galaxy S21.
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Enjoy your Galaxy S21.