Galaxy S9 Guides

a community for owners of Samsung Galaxy S9 and S9+

lockdown mode

How to update Galaxy S9 or S9 Plus to Android Pie (Android 9)?

· 4 Comments

update Galaxy S9 or S9 Plus to Android Pie (Android 9)As in January 2019, you can update Galaxy S9 or S9 Plus to Android Pie (Android 9) in most regions.

Of course, for carrier-locked phones, Android update always arrives slower than unlocked ones.

This Galaxy S9 Android Pie update guide explains why and how to update Galaxy S9 or S9+ to Android Pie, and answers some questions you may have on Android Pie update for Galaxy S9 and S9+.

Should I update Galaxy S9 or S9 Plus to Android Pie (Android 9)?

The short answer is yes, for most owners.

Once the update is available, you should update Galaxy S9 or S9 Plus to Android Pie for the following reasons:

  • Security. All future monthly security update/patch will be based on Android Pie. Samsung will not release Galaxy S9 and S9+ security patches for Android Oreo after Android Pie update is released in your region.
  • Performance. Android Pie address not only some security but also performance issues.  Especially, Android Pie has improved a lot in battery management to extend the battery life (screen-on time, SOT) for Galaxy S9 and S9+.  Of course, Android Pie cannot increase the battery capacity, or make the CPU run faster. But it does make the power consumption and CPU usage more efficient.
  • New Android Pie features. Besides the underhood improvements, Android Pie brought many useful new features for most users as explained in this page. For example, you can use the lockdown mode to temporally disable biometric unlock and smart lock. Or you can use the magnifier when selecting text.
  • New One UI features.  Samsung changed the Samsung Experiences to One UI (FYI, it has nothing to do with Android One) in the Android Pie update.  In addition to the visual (UI)changes, there are many functional updates as well. For example,  you can try the navigation gestures on Galaxy S9 or S9+ (which is different from the navigation gestures in stock Android Pie). The night mode in Galaxy S9 and S9+ works better than the stock Android Pie dark theme (+night mode).

Of course, you cannot expect “stock” Android Pie in the Android Pie update for Galaxy S9 and S9+.  As an Android manufacturer, Samsung has to customize the OS to differentiate itself from other manufacturers.

For a very small portion of owners of Galaxy S9 and S9+, you may have to withhold a while if:

  • You are using
… Read the rest

How to use the lockdown mode on Galaxy S9 and S9+ with Android Pie update?

Everything you need to know about Android Pie lockdown mode on Galaxy S9 and S9+

· Leave a Comment

Everything you need to know about Android Pie lockdown mode on Galaxy S9 and S9+ You can use Android Pie lockdown mode on Galaxy S9 and S9+ with Android Pie (Android 9) update to temporally disable biometric unlock and smart lock. PIN or password will be required to unlock the phones.

The lockdown mode is a standard security feature in Android Pie (Android 9).  Luckily, Samsung did not mess up this feature in the One UI.

This Galaxy S9 Android Pie update guide explains everything you need to know about the lockdown mode on Galaxy S9 and S9+ with Android Pie update and shows you how to use it.

You may also check this updated guide on using lockdown mode on Galaxy S9, S10, S20, S21, and S22.

What is the lockdown mode on Galaxy S9 and S9+ with Android Pie update?

If enabled, Galaxy S9 and S9+ offer many ways to unlock the phone.

In addition to PIN/password/pattern, you can also unlock Galaxy S9 and S9+ using:

  • Fingerprints.
  • Iris.
  • Face.
  • Trusted devices, trusted places, trusted faces, and matched voices through the smart lock.

All these additional unlock methods are provided for your convenience.  Many Galaxy S9 and S9+ owners enjoy these fast unlock methods.

However, in some special situations, for example, someone attempts to force you to unlock the phone to get your data, you may try to disable these unlock methods temporally (and quickly), then type the wrong password/PIN a few times so that you have to wait longer and longer to try again.

When the lockdown mode is enabled, notifications will not be shown on the Galaxy S9 lock screen.

The lockdown mode is one of the new features in Android Pie.  Samsung kept the stock feature and did not mess it up this time in the Android update for Galaxy S9 and S9+, unlike what they did to the navigation gestures.

How to enable the lockdown mode on Galaxy S9 and S9+ with Android Pie update?

By default,  the lockdown mode on Galaxy S9 and S9+ with Android Pie update is not enabled.

You need to enable it in the power button options (power menu) before you can use it.

As shown in the screenshot below, tap Lock screen in Galaxy S9 Settings.

enable the lockdown mode on Galaxy S9 and S9+ with Android Pie update enable the lockdown mode on Galaxy S9 and S9+ with Android Pie update

As shown above, in the lock screen settings page, tap Secure lock settings.

In the secure lock settings, as shown below, you can find the Show lockdown option.… Read the rest

Top 9 new features of Android Pie update for Galaxy S9 and S9+

One UI, night mode, lift to wake, floating keyboard, lock home screen layout, lockdown mode, new camera app, navigation gestures, and adaptive battery are the most exciting new features of Android Pie update for Galaxy S9 and S9+.

· 8 Comments

Top 9 new features of Android Pie update for Galaxy S9 and S9+If your Galaxy S9 or S9+ was updated to Android Pie, you should enjoy many new features of Android Pie update for Galaxy S9 and S9+

As the first major update of Galaxy S9 and S9+, Android Pie (Android 9) update brings not only Android Pie features to Galaxy S9 and S9+ but also a totally new UI (One UI).  Some  Galaxy S9 and S9+ owners may be overwhelmed by so many new features of Android Pie update for Galaxy S9 and S9+.

If you haven’t updated your Galaxy S9 or S9 to Android Pie (Android 9), you may follow this guide to check whether the update is available in your region.

If you want to download the official user manuals for Galaxy S9 and S9+ with Android Pie update, please check this page.

This Galaxy S9 Android Pie update guide explains the top 9 most useful new features of Android Pie update for Galaxy S9 and S9+: One UI, night mode, lift to wake, floating keyboard, lock home screen layout, lockdown mode, new camera app, navigation gestures, and adaptive battery.

# 1. One UI: the most eye-catching new features of Android Pie update for Galaxy S9 and S9+

In the Android Pie update, Samsung debuted the new UI: One UI, to replace the old Samsung Experience.

Do not confuse one UI with Android One. They are totally unrelated.

The One UI was designed to make the phone look beautiful and help the owner focus on what really matters.

In addition to a new set of app icons for Samsung apps (phone, camera, contact, messages, gallery, My files, calendar, smart switch, clock), the default font and the use of white space deliver a fresh look.

The new full-screen navigation gestures were also added and they are even different from the stock Android Pie navigation gestures.

You can also use the rotation toggle button in the navigation bar to change and lock screen orientation on-the-fly very easily.

#2. Night mode: the most wanted new features of Android Pie update for Galaxy S9 and S9+ for night owls

Many Galaxy S9 and S9+ owners complained about the white color scheme.  It is painful to use the white theme in low-light conditions.

Although you can change the Galaxy S9 home screen theme to a dark one, some Samsung apps may not follow the theme.

Blue light filter may … Read the rest

How to reboot Galaxy S9 and S9+ if Galaxy S9 hangs?

Everything you need to know on powering on, powering off and rebooting Galaxy S9 and S9+.

· Leave a Comment

How to reboot Galaxy S9 and S9+ if Galaxy S9 hangs?You may already know to use the power button to power on, power off and reboot Galaxy S9 or S9+.

But occasionally, the power button may be not working as expected. You may have to use button (key) combinations to power off, power on or restart Galaxy S9 or S9+.

This Galaxy S9 guide explains how to reboot, power on and power off Galaxy  S9 and S9+ in both normal situations and abnormal situations (e.g. when Galaxy S9 or S9+ hangs.).

Please note, in this guide, we do not differ reboot and restart.  They are used interchangeably.

Why do you need to reboot Galaxy S9 or S9+ periodically?

You may know you have to reboot Galaxy S9 when you update the phone (for example, updating Galaxy S9 or S9+ to Android Pie).  In this case, some system files being used have to be replaced. Therefore, you need to “stop” the system, then restart the system with the updated files.

For apps, normally, it is not necessary to reboot Galaxy S9 if you update them. Apps in Android are running in its own container. The system can destroy the container and then reload the app with updated apps on Galaxy S9 or S9+. Therefore rebooting Galaxy S9 or S9+ is generally not required for updating apps on the phone.

But some tech guys may tell you to reboot Galaxy S9 or S9+ periodically (from once a month to once a week, NOT daily) to make the phone more responsive.

This is actually a valid suggestion.

When you reboot Galaxy S9 or S9+, all app leftovers (some apps sometimes may fail to clean up their own files after you close them) and ghost processes will be cleaned.

How to automatically reboot Galaxy S9 or S9+?

Samsung added the feature of “auto restart” feature in Galaxy S9 and S9+.

You can enable auto restart on Galaxy S9 and S9+ in Settings — General management — Reset— Auto Restart.

As shown in the screenshots below, you can enable auto restart so that Galaxy S9 or S9+ will be rebooted automatically within one hour of the specified time.

automatically reboot Galaxy S9 or S9+ automatically reboot Galaxy S9 or S9+

You can only set the schedule as once a week only. Frequently restarting/rebooting Galaxy S9 and S9+ will not be helpful.

How to power off and reboot Galaxy S9 and S9+ with the power button options?

The safest way to power off or reboot … Read the rest

How to use Galaxy S9 always-on display (AOD) on Galaxy S9 and S9+?

· Leave a Comment

Galaxy S9 always-on display (AOD) on Galaxy S9 and S9+Galaxy S9 always-on display (AOD) is an extension of the lock screen. You can choose to display some useful info after the lock screen times out.

Update: a new section explaining the changes of Galaxy S9 always-on display (AOD) in Android Pie update for Galaxy S9 and S9+ was added. The new display mode (tap to show) was added.

This Galaxy S9 how-to guide explains everything you need to know about Galaxy S9 always-on display (AOD) on Galaxy S9 and S9+: how to turn on/off the AOD, how to use and customize Galaxy S9 AOD screen, how to customize clock style for AOD screen, how to pin photos to Galaxy S9 AD screen, and how to use AOD themes.

What is Galaxy S9 always-on display (AOD) on Galaxy S9 and S9+?

Traditionally, the phone screen will be turned off after you lock the screen, or if the screen times out.

But more and more smartphone owners use the phone to check time. Some Android phone manufacturers came out the idea of the always-on display (AOD), which shows selected info after the screen times out.

Samsung first introduced the always-on display on Galaxy S7 and S7  Edge.  Galaxy S9 always-on display (AOD) offers an evolutionary update for this feature.

Besides the clock, notification icons, music control, next calendar event and next alarm can also be shown on the Galaxy S9 AOD screen.

Compared to Galaxy S9 lock screen, Galaxy S9 always-on display (AOD) on Galaxy S9 and S9+ does NOT offer the following features:

You can consider Galaxy S9 always-on display (AOD) is a slimmed-down version or an extension of the lock screen.

How to turn on/turn off Galaxy S9 always-on display (AOD) on Galaxy S9 and S9+?

By default, in some regions, Galaxy S9 always-on display (AOD) is turned off on Galaxy S9 and S9+. In other markets, it is on.

Anyway, you can easily turn on or turn off Galaxy S9 always-on display (AOD) whenever you want.

And there are at least 3 different methods to turn on and turn off AOD on Galaxy S9 and S9+.

Method 1: Use quick setting buttons to turn on/turn off Galaxy S9 always-on display (AOD) on Galaxy S9 and S9+

By default, Always-on display button is included in Galaxy S9 quick setting buttons as shown in the … Read the rest

How to use Galaxy S9 safe mode on Galaxy S9 and S9+?

Galaxy S9 safe mode guide: what is Galaxy S9 safe mode? when you need it? how to enter Galaxy S9 safe mode? how to use it?

· Leave a Comment

You can use Galaxy S9 safe mode to identify possible causes of some problems or strange behaviours of Galaxy S9 and S9+.

This safe mode is safe for your data, settings and apps. They will not be affected or altered when using the safe mode on Galaxy S9 and S9+.

This Galaxy S9 how-to guide shows you when you may need Galaxy S9 safe mode, two ways to enter the safe mode for Galaxy S9 and S9+, and how to use and exit Galaxy S9 safe mode.

What is Galaxy S9 safe mode? And when do you need Galaxy S9 safe mode?

Like most other Android phones, Galaxy S9 and S9+ have a special Galaxy S9 safe mode letting you troubleshoot possible problems caused by third-party apps.

In Galaxy S9 safe mode, all third-party apps installed by you were temporally disabled so that you can determine whether the problem is caused by such apps.

Your data, settings, and app data are not affected when you reboot Galaxy S9 or S9+ into Galaxy S9 safe mode

Galaxy S9 safe mode can only determine whether some strange behaviours or problems are caused by third-party apps.  It is not able to pinpoint the app.

Unlike Galaxy S9 recovery mode which is not part of Android OS, Galaxy S9 safe mode is a special mode of Android OS.

So, under the Galaxy S9 safe mode, you can still make and receive calls,  connect to the Internet, use pre-installed apps. The safe mode only prevents you from using apps installed by you.

You need to try Galaxy S9 safe mode before you visit the service centre because technical support in most service centres does not solve issues due to third-party apps. They only diagnose problems in the firmware and pre-installed apps.

Although Galaxy safe mode does not change your data and settings, you may lose some home screen customizations after you exit the safe mode. So, you may still consider to back up Galaxy S9 before rebooting into the safe mode.

How to reboot into Galaxy S9 safe mode?

There are two ways to reboot into Galaxy S9 safe mode:

  1. Use the power button options if Galaxy S9 or S9+ is currently powered on.
  2. Use buttons if the phone is powered off.

Method 1: Use power button options to reboot into Galaxy S9 safe mode

If the phone is powered on, you can… Read the rest

How to use and customize Galaxy S9 lock screen?

The ultimate guide to Galaxy S9 lock screen

· 42 Comments

The ultimate guide to Galaxy S9 lock screenGalaxy S9 lock screen not only keeps your data safe but also offers some useful features and information to improve your productivity.

This Galaxy S9 how-to guide shows you how to set up, use and customise the lock screen of Galaxy S9 and S9+.

Please note although Galaxy S9 supports landscape mode in Galaxy S9 Home screen, Galaxy S9 lock screen is always in portrait mode.

What is Galaxy S9 lock screen?

Galaxy S9 lock screen likes a door to Galaxy S9 and S9+. You need this door to protect your data and info saved on the phone.

But Galaxy S9 lock screen is also an information centre for you so that you can get some essential info without unlocking the phone or opening any apps.

The information provided through Galaxy S9 lock screen varies depending on your customisation. By default, you can get at least the following info in Galaxy 9 lock screen:

  • Time and date (clock).
  • Carrier info.
  • Media player controller.
  • Your schedule.
  • Notifications.
  • Next alarm.

In addition, Galaxy S9 lock screen allows you to:

  • Change a few settings (not related to data or privacy) of Galaxy S9 and S9+ through quick setting buttons, for example, turn on/off the blue light filter.
  • Add up to 2 app shortcuts to lock screen.
  • Use Galaxy S9 camera without unlocking the phone.
  • Make emergency calls.

Of course, to protect your data in Galaxy S9 or S9+,  most of the settings can only be changed after you unlock the phone.

How to set up Galaxy S9 lock screen security?

By default, when you set up Galaxy S9 or S9+, it will ask you to set up the lock screen security.

If you skip that step, the default lock screen security, swipe, will be used.

Of course, you can change Galaxy S9 lock screen security at any time.

And you should NOT set Galaxy S9 lock screen security to swipe or none.

If you use either of the options, your data in Galaxy S9 or S9+ are at risk. Anyone, including thieves, can access your phone without restrictions. They can impersonate you.

To change Galaxy S9 lock screen security, you may follow these steps.

Step 1: Access Galaxy S9 Settings

There are a couple of ways to access Galaxy S9 settings, for example

… Read the rest

Galaxy S9 layout (and layout of Galaxy S9+)

get to know the layout of Galaxy S9 and S9+

· 8 Comments

To effectively use your new phone, you need to know and understand the Galaxy S9 layout and Galaxy S9+ layout.

Sometimes, common sense works; sometimes it may not.

This Galaxy S9 how-to guide explains the layout of Galaxy S9 and S9+, the difference between the Galaxy S9 layout and Galaxy S9+ layout, and the meaning of essential parts in the layouts of Galaxy S9 and S9+.

Why do you need to know Galaxy S9 layout and Galaxy S9+ layout?

Although Galaxy S9 and S9+ are not a revolutionary product, the layout of Galaxy S9 and S9+ is substantially different from Android phones from other Android manufacturers.

Even compared to Galaxy S8 and S8+ layout, there are a few changes in the Galaxy S9 layout and Galaxy S9+ layout.

You need to know and understand Galaxy S9 layout when you want to know the functions of all buttons in Galaxy S9 and S9+.

The Galaxy S9 and S9+ layout can also help you find the locations of some parts. For example, a few Galaxy S9 and S9+ owners accidentally inserted the SIM card ejection pin into the top microphone hole. They may spoil the microphone.  Had they known the layout of Galaxy S9 and S9+, they wouldn’t have made this mistake.

Besides,  it is also beneficial to know the location of antennas and wireless charging coils when using some Galaxy S9 accessories.

Anyway, before using your Galaxy S9 or Galaxy S9+, you should spend a few minutes to learn and understand the layout of S9 and S9+ even if you are a seasoned Samsung phone user.

The difference between Galaxy S9 layout and Galaxy S9+ layout

Unlike Galaxy S8 and S8+, which differ only in size, Galaxy S9 and S9+ have a few considerable differences in the hardware configuration.

Due to dual rear camera configuration in Galaxy S9+, the back of Galaxy S9+ layout is different from that of Galaxy S9.

The second rear camera is the only difference between Galaxy S9 layout and Galaxy S9+ layout.

Galaxy S9 and S9+ layout: front view

The front view of Galaxy S9 layout is illustrated in the picture below. The front view of Galaxy S9+ is identical except the screen size.

As shown below, you can find in the front of Galaxy S9 and S9+:

  • touchscreen;
  • edge screens;
  • front camera;
  • LED indicator;
  • top speaker (earpiece);
  • proximity/light sensor;
  • iris recognition camera;
… Read the rest