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    • Android 12 update vs One UI 4.0 vs One UI 4.1: update Galaxy S21, S20 and S10 to Android 12
      • Top 12 new features in Android 12 update for Galaxy S21, S20 and S10
      • How to use Extra Dim on Galaxy S22, S21, S20, and S10? How to use Extra Dim on Galaxy S22, S21, S20, and S10?
      • Should I enable Protect Battery to limit the maximum battery charge to 85% on Galaxy S22, S21, S20, and S10?
    • How to charge Galaxy S21 battery properly?
    • Ultimate Guide for Using SIM Card on Galaxy S21
    • Master Meaning of Galaxy S21 Status Icons and Notification Icons
    • Layout of Galaxy S21, S21+, and S21 Ultra
      • How to Use and Customize Galaxy S21 Side Key?
      • How to use Galaxy S21 quick settings panel?
      • How to use touchscreen gestures on Galaxy S21?
      • How to power on, power off, and reboot Galaxy S21,even when the phone hangs?
      • How to migrate to Galaxy S21 with Samsung Smart Switch?
    • Understand and Use Galaxy S21 Lock Screen
      • How to lock Galaxy S21 screen?
      • Master Galaxy S21 Lock Screen Settings
    • How to Use Galaxy S21 Home Screen?
      • How to use widgets on Galaxy S21?
      • How to Customize Galaxy S21 Home Screen?
      • How to use LED icon editor to customize LED icons for Smart LED View Cover and LED Back Cover?
    • How to use and customize Galaxy S21 navigation buttons and navigation bar?
      • How to use navigation gestures on Galaxy S21?
      • How to use NavStar (Good Lock) to customize navigation buttons and navigation bar on Samsung Galaxy phones?
  • New Features
    • Android 12 update vs One UI 4.0 vs One UI 4.1: update Galaxy S21, S20 and S10 to Android 12
    • Master Google Discover and Samsung Free on Galaxy S21
    • Top 6 disappointments of Galaxy S21 Ultra
    • Galaxy S21 vs Galaxy S21+ vs Galaxy S21 Ultra
  • Camera
    • How to use Galaxy S21 Camera App?
    • How to Use Galaxy S21 Camera Modes?
    • Ultimate Guide for Galaxy S21 Camera Settings
    • How to use Galaxy S21 camera quick launch?
    • How to set and resize photo size on Samsung Galaxy S21, S20, S10, and S9 without using any third-party apps?
  • Accessories
    • How to use Galaxy S21 Smart Clear View Cover (S-View Flip Cover)?
    • How to Use Galaxy S21 Smart LED View Cover (LED Wallet Cover)?
    • How to use LED icon editor to customize LED icons for Smart LED View Cover and LED Back Cover?
  • User Manual
Samsung Galaxy S21 Guides

Samsung Galaxy S21 Guides

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How to use Galaxy S21 Smart Clear View Cover (S-View Flip Cover)?

Last updated on: September 21, 2021

How to use Galaxy S21 Smart Clear View Cover (S-View Flip Cover)Galaxy S21 Smart Clear View Cover (aka Galaxy S21 S-View Flip Cover in some regions) offers some unique features and decent protection for Galaxy S21. And it is “officially” designed and manufactured by Samsung.

This Galaxy S21 accessories guide explains the unique features and layout of the Galaxy S21 Smart Clear View Cover and demonstrates how to use the Galaxy S21 S-View Flip Cover, including attaching to or removing the cover from Galaxy S21 properly, adjusting the text orientation on the cover, accepting or rejecting calls without opening the cover, and controlling music play on the Galaxy S21 Smart Clear View Cover.

Due to the differences in size and camera lens in Galaxy S21, S21+, S21 Ultra, the Galaxy S21 Smart Clear View Cover is NOT interchangeable among these 3 phones. In other words, if your Galaxy S21 is a Galaxy S21+, you MUST buy the clear view cover for Galaxy S21+.  If it is Galaxy S21 Ultra, you need to buy the one for S21 Ultra.

What are the unique features of the Galaxy S21 Smart Clear View Cover (S-View Flip Cover)?

As an official Galaxy S21 accessories, compared to most third-party flip covers, Galaxy S21 Smart Clear … Read the rest

Ultimate Guide for Using SIM Card on Galaxy S21

Last updated on: July 3, 2021

SIM Card on Galaxy S21You need to use a SIM card on Galaxy S21 if you want to use mobile data, receive SMS, or make voice calls through a cellular network.

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.

This guide applies to all three Galaxy S21 models (Galaxy S21, S21+, and S21 Ultra). But in different regions or on different carriers, the mobile network features may slightly different.

What’s the supported SIM card size for Galaxy S21?

Galaxy S21 supports nano-SIM cards only (for the physical card) and eSIM (if your carrier supports it).

A nano-SIM is currently the smallest SIM card for mobile phones. Most phones released in the last few years adopted nano-SIM already.

So, you can use your existing SIM card if you migrated to Galaxy S21 from the following phones (just some examples):

  • Samsung Galaxy S6, S7, S8, S9, S10, S20 and all their variants.
  • Samsung Galaxy Note 5,  Note 7 FE, Note 8, Note 9, Note 10, Note 10+, Note 10 Lite, Note
… Read the rest

Layout of Galaxy S21, S21+, and S21 Ultra

Last updated on: June 4, 2022

Layout of Galaxy S21, S21+, and S21 UltraYou need to know the layout of Galaxy S21, S21+ or S21 Ultra to locate and use the buttons, ports, and key components properly.

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.

Why you should know the layout of Galaxy S21, S21+, and S21 Ultra?

You need to know your phone before using it.  It is simple.

If you do not know where the SIM card slot is located, you may try hard to pierce the microphone at the bottom of Galaxy S21.

Or if you are a seasoned Galaxy S phone user, you may assume the SIM card slot on Galaxy S21 is on the top and therefore, pierce another microphone at the top.

Of course, you need to know the location of the Side key to power on or off Galaxy S21,  or the volume key to change the volume when playing media.

Besides, Galaxy S21( all three models) uses the in-display ultrasonic fingerprint reader (BTW, this is one of the … Read the rest

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RSS Galaxy S22 Guides

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  • How to Use Face Recognition on Galaxy S22 to Unlock the Phone?
  • How to use Extra Dim on Galaxy S22, S21, S20, and S10?
  • A Complete Guide to Galaxy S22 Camera Modes
  • Understand Galaxy S22 Lock Screen
  • A Complete Guide to Galaxy S22 Quick Settings
  • Master Galaxy S22 Home Screen

RSS Chromecast Guides

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  • Chromecast Audio vs Bluetooth: advantages and disadvantages of Chromecast Audio
  • Chromecast VS Amazon Fire TV stick: which one is for you?
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Samsung Galaxy S21 how-to guides, user manuals, tips and tricks for Samsung Galaxy S21, Galaxy S21+, Galaxy S21 FE and Galaxy S21 Ultra owners.
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