Samsung Galaxy S21 series

Samsung Galaxy S21 series: 35 Notes & Tips you need to know

Do you own a Samsung Galaxy S21 series device? If the answer is yes then it is time to get to know each other much better. 

In today’s Digital Age your smartphone is indeed the natural extension of your hand, your essential partner to work and everyday life. It’s been a long time since it became a necessity and is not a luxury anymore. Numbers are talking… Today 3.8 billion smartphone users are out there worldwide accounting for 48.33% of the global population. You are one of them… Get to know better your partner through the manufacturer’s most important Notes & Tips.

Charge the battery

Samsung Galaxy S21 bulb

TIP.  While charging, the device and the charger may become hot and stop charging. This usually does not affect the device’s lifespan or performance and is in the device’s normal range of operation. Disconnect the charger from the device and wait for the device to cool down. 

Wireless power sharing

NOTE.  Wireless power sharing works with most Qi-Certified devices. Requires minimum 30% battery to share. Speed and power efficiency of charge vary by device. May not work with some accessories, covers, or other manufacturers’ devices. If you have trouble connecting or charging is slow, remove any cover from each device.

Samsung Galaxy S21

Add a Google Account

NOTE.  When you sign in to a Google Account, Factory Reset Protection (FRP) is activated. FRP requires your Google Account information when resetting to factory settings.

App icons

NOTE. Removing an icon does not delete the app, it just removes the icon from a Home screen.

Air Command

Samsung Galaxy S21 bulb

TIP. You can tap GIF  Animation to record animation or Pin to screen to pin the content to your screen using Smart select.

Samsung Galaxy S21 bulb

TIP. Hold the S Pen button to erase your drawings on the screen memo.

Samsung Galaxy S21 S pen

Always on Display

  NOTE. Some display settings can appear on both the Lock screen and Always On Display.

Continue apps on other devices

Samsung Galaxy S21 bulb

TIP. Move your contacts from your device to your Samsung account so you can access them on all registered devices.

Samsung Galaxy S21 Camera

Samsung Galaxy S21 bulb

TIP. If Quick launch is enabled, quickly press the Side key twice to open the Camera app.

Samsung Galaxy S21 Camera screen

Samsung Galaxy S21 Scene optimizer

NOTE. The Scene optimizer is only available when using the rear camera. The Scene optimizer icon will change automatically based on what the camera detects, such as the flower icon when taking nature photos or the moon icon when taking photos in a dark setting.

Samsung Galaxy S21 Scene optimizer screen

Search for apps

Samsung Galaxy S21 bulb

TIP. You can customize the search settings by tapping More options > Settings

Soft apps

Samsung Galaxy S21 bulb

TIP. When apps are arranged manually (Custom Order), empty icon spaces can be removed by tapping  More options > Clean up pages.

App settings

Samsung Galaxy S21 bulb

TIP. To reset app options that have been changed, tap  More options > Reset app preferences.

Share a contact

Samsung Galaxy S21 bulb

TIP. When viewing a contact, tap  More options > QR code to quickly share the information with friends or family. The QR code automatically updates when you change the contact information fields.

View History

Samsung Galaxy S21 bulb

TIP. To clear your browsing history, tap  More options > Clear history.

Decline a call with a message

Samsung Galaxy S21 bulb

TIP. On the incoming call pop-up screen, tap Send a message and select a message.

Block a number

Samsung Galaxy S21 bulb

TIP. You can also modify your Block list in Settings. From Phone icon, tap  More options > Settings > Block numbers.

Emergency calls

Samsung Galaxy S21 bulb

TIP. The emergency telephone number can be dialed even if the phone is locked, allowing anyone to use your phone to call for help in an emergency. When accessed from a locked screen, only the emergency calling feature is accessible to the caller. The rest of the phone remains secured.

Samsung Galaxy S21 Emergency call screen

Video calls

Samsung Galaxy S21 bulb

TIP. Not all devices support video calling. The receiver has the option to accept the video call or answer the call as a regular voice call.

Samsung Health

NOTE. The information gathered from this device, Samsung Health, or related software is not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of disease.

Samsung Galaxy S21 Samsung health

Samsung Pay

NOTE. For added security, your credit and debit card information is not stored on a cloud service. If you are using the Samsung Pay app on multiple devices, you must sign in to the app and confirm all payment cards on each device. Some card issuers may limit the number of devices.

Samsung Galaxy S21

Connect to a hidden Wi-Fi network

Samsung Galaxy S21 bulb

TIP. Tap QR scanner button to connect to a Wi-Fi network by using your device’s camera to scan a QR code.

Samsung Galaxy S21 NFC and payment

Samsung Galaxy S21 bulb

TIP. NFC technology is used with Samsung Pay. Turn on this feature to see how easy and secure it is to use your device to make payments.

Samsung Galaxy S21

Mobile Hotspot

Samsung Galaxy S21 bulb

TIP. Tap the QR code to connect another device to your Mobile hotspot by scanning a QR code instead of entering a password. 

Connect to a printer

NOTE. Not all apps support printing.


Samsung Galaxy S21 bulb

TIP. You need an adapter (not included) to connect an Ethernet cable to your device.

Sound mode

Samsung Galaxy S21 bulb

TIP. Use the sound mode setting instead of the volume keys to change the sound mode without losing your customized sound levels.


Samsung Galaxy S21 bulb

TIP. You can also use the Volume keys to adjust the volume. When pressed, a pop-up menu shows the volume level and current sound type. You can tap the menu to expand it, and then adjust the volume of the other sound types by dragging their sliders.

Notification Sound

Samsung Galaxy S21 bulb

TIP. You can also customize notification sounds to be unique for each app using the App settings menu.

Adapt sound

Samsung Galaxy S21 bulb

TIP. Tap Personalize your sound to let your device identify the best sound for you.

Screen timeout

NOTE. Prolonged display of non-moving images, excluding Always On Display, may result in permanent ghost-like afterimages or degraded image quality. Turn off the display screen when not in use.

Install unknown apps

Samsung Galaxy S21 bulb

TIP. Installing unknown third-party apps could make your device and personal data more vulnerable to security risks.

Factory Data Reset

NOTE. If you reset your Google Account password, it can take 24 hours for the password reset to sync with all devices registered to the account.

Maintaining water & dust resistance

NOTE. Your device is IP68 rated for dust and water resistance. To maintain the water-resistant and dust-resistant features of your device, make sure that the SIM card tray openings are maintained free of dust and water, and that the tray is securely inserted before any exposure to liquids.

Samsung Galaxy S21 Water & dust resistance

NOTE. Liquid other than fresh water may enter the device faster. Failure to rinse the device in fresh water and dry it as instructed may cause the device to suffer from operability or cosmetic issues.

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