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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+

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.

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

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+.

simon · Leave a Comment

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.

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 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?

simon · 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:

Use the power button options if Galaxy S9 or S9+ is currently powered on.
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 Galaxy S9 touchscreen gestures?

Seven Galaxy S9 touchscreen gestures: tap, double tap (and triple-tap), long tap, swipe, drag, pinch and spread, are explained and illustrated.

simon · 2 Comments

You have to use some Galaxy S9 touchscreen gestures if you want Galaxy S9 or S9+ to do anything for you.

Although most Galaxy S9 touchscreen gestures work on all other Android phones, you may not be aware of some gestures that help you use Galaxy S9 and S9+ effectively.

This Galaxy S9 how-to guide illustrates the 7 Galaxy S9 touchscreen gestures with animations, explains the features of these gestures and gives examples of using these gestures.

What are Galaxy S9 touchscreen gestures?

As Galaxy S9 and S9+ do not have a physical keyboard or other input devices, you have to interact with the phone either through the touchscreen or voice (e.g., Bixby or Google Assistant).

In addition to the on-screen keyboard or keypad, Galaxy S9 and S9+ also accept some touchscreen gestures.

When your finger(s) or other capacitive pens (please note S Pen on Galaxy Note devices does NOT work with Galaxy S9 or S9+ screen) move on the screen, Galaxy S9 and S9 can recognize certain patterns and therefore responds accordingly.

These moving patterns are usually referred to as Galaxy S9 touchscreen gestures.

So, understanding and correctly using Galaxy S9 touchscreen gestures are essential if you want to use the phone efficiently.

Similar to other Android phones, there is nothing special in Galaxy S9 touchscreen gestures. These gestures can be used in almost all other Android phones.

Although most of Galaxy S9 touchscreen gestures are used on the screen, some can also be used on the physical buttons. e.g., the power button accepts press, double press and long press gestures.

List of Galaxy S9 touchscreen gestures in Galaxy S9 and S9+

You can use the following 7 Galaxy S9 touchscreen gestures on Galaxy S9 and S9+ for various operations.

1. Tap gesture (press)

Tap is one of the most used Galaxy S9 touchscreen gestures.

As shown in the animation below, you need to tap an icon or a specific area to activate something, for example, to start an app, or to open a menu item.

The tap gesture actually mimics “click” of a mouse (e.g., when using Samsung DeX with Galaxy S9 or S9+).

Of course, the action or response of the tap gesture depends on what was tapped, or where you tapped.

Some example of using tap gesture includes:

You can open an app by tapping an app icon in Galaxy S9 home screen or

… Read the rest

How to reboot into Galaxy S9 recovery mode and to clear Galaxy S9 cache partition on Galaxy S9 and S9+?

simon · 8 Comments

You can use Galaxy S9 recovery mode to flash new ROMs, clear Galaxy S9 cache partition, and to check recovery logs.

Although Galaxy S9 recovery mode was designed for some advanced users, you may need some of the features, especially clearing the cache partition to fix some problems after a major update.

This Galaxy S9 guide explains to you the functions of Galaxy S9 recovery mode, the way to reboot Galaxy S9 or S9+ into recovery mode, usage of the recovery mode, and methods of clearing Galaxy S9 cache partition.

What is Galaxy S9 recovery mode?

All Android phones have a special mode: recovery mode, which allows you to fix any Android problems and perform some actions (for example, patch the system) to the Android system without loading Android OS.

In the phone storage layout, there is a special partition for recovery. This partition is protected from Android OS and other partitions.

Galaxy S9 is not an exception.

If you think you never used Galaxy S9 recovery mode, you are very likely wrong.

When you install updates (including monthly security updates) for Galaxy S9 and S9+, you may notice the phone will reboot twice automatically.

During this updating process, Galaxy S9 or S9+ would reboot into Galaxy S9 recovery mode first to apply the update, then reboot into Android OS so that you can use Galaxy S9 and S9+.

Of course, Galaxy S9 recovery mode offers more functions including:

To apply Android OS update
To reset (factory data reset) Galaxy S9 or S9+.
To wipe/clear Galaxy S9 cache partition.
To boot into bootloader (download mode).
To flash official or third-party ROMs for Galaxy S9 and S9+.
To mount /system partition manually.
To check recovery logs.
To run a graphics test.

Although Galaxy S9 recovery mode is seldom used for most Galaxy S9 and S9+ owners, you may need to reboot into Galaxy S9 recovery mode to fix some problem with your S9 or S9+.

In fact, most Galaxy S9 and S9+ owners reboot the phone into Galaxy S9 recovery mode to clear the cache partition to fix some issues after a major Android update.

You should not confuse Galaxy S9 recovery mode with Galaxy S9 safe mode, which is a special mode of Android OS.

How to reboot into Galaxy S9 recovery mode?

The key combination to reboot into Galaxy S9 recovery mode is Bixby button+ … Read the rest

6 ways to start Galaxy S9 camera app in Galaxy S9 and S9+

simon · 2 Comments

Galaxy S9 and S9+ feature some significantly new camera features such as the dual-aperture lens, and super slow motion mode. As the first step of trying the new camera in Galaxy S9 and S9+, you need to start Galaxy S9 camera app first.

In addition to tapping the camera app icon, you can have several other ways to start Galaxy S9 camera app in S9 and S9+.

This Galaxy S9 camera guide shows you the six ways to open Galaxy S9 camera app in your Samsung Galaxy S9 and S9+.

#1. Use Galaxy S9 camera quick launch to start Galaxy S9 camera app

The fastest way to launch Galaxy S9 camera app is to use Galaxy S9 camera quick launch feature, which is enabled by default.

You can quickly press the power button twice to start Galaxy S9 camera app immediately. Samsung named this as Galaxy S9 camera quick launch.

The good thing about Galaxy S9 camera quick launch is that it works at any times: when the screen is on or off, or when you are using any apps, or when the screen is locked or unlocked.

When you use the Galaxy S9 camera quick launch first time, it will remind you of this feature as shown below.

You can then keep it on or turn it off if you want.

If you want, you can enable or disable Galaxy S9 camera quick launch in Galaxy S9 camera settings.

#2. Use camera app shortcut on Galaxy S9 lock screen to start Galaxy S9 camera app.

By default, in Galaxy S9 lock screen as shown below, there are two app shortcuts on the left and right sides of the bottom.

One is the phone app for you to make emergency calls without unlocking the phone. And the other is the camera app as shown below.

Of course, you can use other apps to replace them in Settings — Lock screen and security — App shortcuts.

You can tap the camera app icon to open Galaxy S9 camera app without unlocking the screen.

If you launch Galaxy S9 camera app without unlocking the screen, you can only access photos taken in this session. You cannot access any other photos or pictures saved in the phone before the screen was locked.

This is a security feature, not a bug. For example, if someone gets your phone, he/she … Read the rest

Galaxy S9 layout (and layout of Galaxy S9+)

get to know the layout of Galaxy S9 and S9+

simon · 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