• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Galaxy S9 Guides

a community for owners of Samsung Galaxy S9 and S9+

  • Home
    • About Galaxy S9 Guides
    • Contact Us
  • How-to Guides
    • Galaxy S9 Android Pie update guides
      • Official user manuals for Galaxy S9 and S9 Plus with Android Pie update
      • Top 9 new features of Android Pie update for Galaxy S9 and S9+
      • How to use the new navigation gestures in Android Pie update for Galaxy S9 and S9+?
      • How to use the lockdown mode on Galaxy S9 and S9+ with Android Pie update?
      • How to use the night mode on Galaxy S9 and S9+ with Android Pie update?
      • How to remap Bixby button on Galaxy S9 and S9+ after updating to Android Pie?
      • How to use Bixby quick commands on Galaxy S9, S9+, S8, S8+, Note 8, and Note 9 with the Android Pie update?
      • How to update Galaxy S9 or S9 Plus to Android Pie (Android 9)?
      • How to use the lift to wake feature on Galaxy S9 and S9+ with Android Pie update?
      • How to use the new Recents screen in Android Pie update for Galaxy S9 and S9 Plus?
      • How to use the floating keyboard on Galaxy S9 and S9+ with Android Pie update?
      • How to lock Galaxy S9 home screen layout on Galaxy S9 and S9+ with Android Pie update?
      • How to use the rotation toggle to change and lock screen orientation in Android Pie update for Galaxy S9 and S9 Plus?
      • How to use the updated camera app in Android Pie update for Galaxy S9 and S9 Plus?
    • Meaning of Galaxy S9 status icons and notification icons in Samsung Galaxy S9 and S9+
      • How to use Samsung DeX with Galaxy S9 and S9+ and other Samsung phones?
      • How to use Multi Window on Galaxy S9 and S9+?
      • How to use app pair on Galaxy S9 and S9+?
      • Samsung DeX Station vs Samsung DeX Pad vs Samsung DeX cable
      • How to use Samsung DeX Station for Galaxy S9, S9+, S8, S8+, Note 8 and Note 9?
      • How to use Samsung DeX Pad for Galaxy S9, S9+, S8, S8+, Note 8 and Note 9?
      • How to use a USB flash drive on Galaxy S9 and S9+?
    • How to charge Galaxy S9 battery?
    • Galaxy S9 SIM card guide
      • How to use two SIM cards on Galaxy S9, S10, and S20?
      • How to use Galaxy S9 dual messenger to run two accounts of messenger apps simultaneously on Galaxy S9 and S9+?
      • How to use micro SD card on Galaxy S9 and S9+?
      • How to back up Galaxy S9 and S9+?
      • How to use smart switch to transfer and migrate data to Galaxy S9 or S9+?
      • How to reset Galaxy S9 and S9+? What is Galaxy S9 factory data reset?
    • How to disable Bixby button in Galaxy S9 and S9+?
      • How to remove Bixby Home from Galaxy S9 Home screen?
    • Understand and Use Galaxy S9 Home screen
      • How to use Galaxy S9 edge screen on Galaxy S9 and S9+?
      • How to show photos on Galaxy S9 Home screen?
      • How to pin files to Galaxy S9 Home screen (add file shortcuts to Galaxy S9 Home screen)?
      • How to use Galaxy S9 Apps screen on Galaxy S9 and S9+?
      • How to use Galaxy S9 Home screen edit mode to customize Galaxy S9 Home screen?
      • How to use Galaxy S9 home screen landscape mode?
      • How to hide Galaxy S9 apps screen and how to hide Galaxy Apps button?
      • How to use and customize Galaxy S9 navigation bar and navigation buttons?
      • How to manage Galaxy S9 Home screen panels on Galaxy S9 and S9+?
    • How to use and customize Galaxy S9 lock screen?
      • How to use Galaxy S9 always-on display (AOD) on Galaxy S9 and S9+?
    • How to use Galaxy S9 notification panel on Galaxy S9 and S9+?
      • How to use Do Not Disturb on Galaxy S9 and S9+?
      • Understand and use Galaxy S9 notification number badge (notification dots, app icon badge)
      • How to use quick setting buttons on Galaxy S9 and S9+?
      • How to use quick-open notification panel on Galaxy S9 and S9+ to check notifications?
    • Galaxy S9 layout (and layout of Galaxy S9+)
      • How to use adapt sound on Galaxy S9 and S9+?
      • 5 ways to take screenshots on Galaxy S9 and S9+ without using any apps
      • How to use Galaxy S9 touchscreen gestures?
      • How to use wireless printing on Galaxy S9 and S9+?
      • How to use Galaxy S9 themes to customize the look and feel of Galaxy S9 and S9+?
      • Unbox Galaxy S9: understand package contents in Galaxy S9 box and S9+ box
    • How to reboot into Galaxy S9 recovery mode and to clear Galaxy S9 cache partition on Galaxy S9 and S9+?
      • How to reboot Galaxy S9 and S9+ if Galaxy S9 hangs?
      • How to use Galaxy S9 safe mode on Galaxy S9 and S9+?
    • How to use Galaxy S9 camera app?
      • 6 ways to start Galaxy S9 camera app in Galaxy S9 and S9+
      • Understanding and use Galaxy S9 camera settings
      • How to use super slow motion mode (super Slow-mo) on Galaxy S9 and S9+?
      • How to use Galaxy S9 camera Pro Mode on Galaxy S9 and S9+?
  • New features
    • Top 9 new features of Android Pie update for Galaxy S9 and S9+
      • How to use the lockdown mode on Galaxy S9 and S9+ with Android Pie update?
      • How to use the new navigation gestures in Android Pie update for Galaxy S9 and S9+?
      • How to use the night mode on Galaxy S9 and S9+ with Android Pie update?
      • How to remap Bixby button on Galaxy S9 and S9+ after updating to Android Pie?
      • How to update Galaxy S9 or S9 Plus to Android Pie (Android 9)?
      • How to use the lift to wake feature on Galaxy S9 and S9+ with Android Pie update?
      • How to use the new Recents screen in Android Pie update for Galaxy S9 and S9 Plus?
      • How to use the floating keyboard on Galaxy S9 and S9+ with Android Pie update?
      • How to lock Galaxy S9 home screen layout on Galaxy S9 and S9+ with Android Pie update?
      • How to use the rotation toggle to change and lock screen orientation in Android Pie update for Galaxy S9 and S9 Plus?
      • How to use the updated camera app in Android Pie update for Galaxy S9 and S9 Plus?
      • How to use Bixby quick commands on Galaxy S9, S9+, S8, S8+, Note 8, and Note 9 with the Android Pie update?
    • Top 10 new features of Samsung Galaxy S9 and Galaxy S9+
    • How to remove Bixby Home from Galaxy S9 Home screen?
    • How to use and customize Galaxy S9 navigation bar and navigation buttons?
    • How to use super slow motion mode (super Slow-mo) on Galaxy S9 and S9+?
    • Understand and use Galaxy S9 notification number badge (notification dots, app icon badge)
    • How to use Samsung DeX Pad for Galaxy S9, S9+, S8, S8+, Note 8 and Note 9?
    • How to use Galaxy S9 home screen landscape mode?
    • Understanding and use Galaxy S9 camera settings
    • How to use dual aperture to manually switch Galaxy S9 camera aperture in Pro mode?
    • Galaxy S9 layout (and layout of Galaxy S9+)
    • How to use app pair on Galaxy S9 and S9+?
  • Camera
    • How to use Galaxy S9 camera app?
    • How to use the updated camera app in Android Pie update for Galaxy S9 and S9 Plus?
    • Understanding and use Galaxy S9 camera settings
    • 6 ways to start Galaxy S9 camera app in Galaxy S9 and S9+
    • How to use dual aperture to manually switch Galaxy S9 camera aperture in Pro mode?
    • How to use super slow motion mode (super Slow-mo) on Galaxy S9 and S9+?
    • How to use Galaxy S9 camera Pro Mode on Galaxy S9 and S9+?
    • How to show photos on Galaxy S9 Home screen?
  • Official User Guides
    • Official user manuals for Galaxy S9 and S9 Plus with Android Pie update
    • Official Samsung Galaxy S9 user guides (Oreo)
  • Accessories
    • How to use Samsung Galaxy S9 clear view standing cover (S-view cover)?
    • Samsung Galaxy S9 LED wallet cover guide
    • How to use micro SD card on Galaxy S9 and S9+?
    • How to use Samsung DeX with Galaxy S9 and S9+ and other Samsung phones?
      • Samsung DeX Station vs Samsung DeX Pad vs Samsung DeX cable
      • How to use Samsung DeX Station for Galaxy S9, S9+, S8, S8+, Note 8 and Note 9?
      • How to use Samsung DeX Pad for Galaxy S9, S9+, S8, S8+, Note 8 and Note 9?
      • How to use a USB flash drive on Galaxy S9 and S9+?

power on Galaxy S9

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+

simon · 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

Filed Under: Galaxy S9 Guides, Galaxy S9 New Features Tagged With: Android Pie, Android Pie update guide, Galaxy S9 apps screen, Galaxy S9 home screen, Galaxy S9 layout, Galaxy S9 lock screen, Galaxy S9 notifications, Galaxy S9 safe mode, Galaxy S9 touch screen gesture, lock down, lockdown mode, navigation gestures, power button, power button options, power off Galaxy S9, power on Galaxy S9, screenshot, smart lock

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

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

Filed Under: Galaxy S9 Guides Tagged With: Android Pie, charge Galaxy S9 battery, Galaxy S9 layout, Galaxy S9 lock screen, Galaxy S9 recovery mode, Galaxy S9 safe mode, Galaxy S9 settings, lockdown mode, long tap gesture, power button, power button options, power off Galaxy S9, power on Galaxy S9, reboot Galaxy S9, reset Galaxy S9

Primary Sidebar

RSS Samsung Galaxy S21 Guides

  • Top 12 new features in Android 12 update for Galaxy S21, S20 and S10
  • Android 12 update vs One UI 4.0 vs One UI 4.1: update Galaxy S21, S20 and S10 to Android 12
  • How to set and resize photo size on Samsung Galaxy S21, S20, S10, and S9 without using any third-party apps?
  • How to Customize Galaxy S21 Home Screen?
  • Master Galaxy S21 Lock Screen Settings
  • How to use widgets on Galaxy S21?
  • How to Use and Customize Galaxy S21 Side Key?
  • How to hide Galaxy S21 password and PIN when typing?
  • How to power on, power off, and reboot Galaxy S21,even when the phone hangs?
  • How to use Galaxy S21 quick settings panel?

RSS Galaxy S20 Guides

  • How to Use Enhanced Processing on Galaxy S20 with Android 11 update?
  • How to access, use, and customise widgets on Galaxy S20 lock screen and AOD screen with Android 11 update for Galaxy S20?
  • How to update Galaxy S20 to Android 11?
  • How to use Galaxy S20 lockdown mode?
  • Top 11 new features in Galaxy S20 Android 11 update
  • How to use Galaxy S20 recovery mode?
  • How to use 5 different shooting methods for Galaxy S20 camera?
  • How to use and customize power mode on Galaxy S20?
  • A Complete Guide Of Galaxy S20 Assistant Menu

RSS Galaxy Note Guides

  • Top 11 disappointments of Galaxy Note 20 and Galaxy Note 20 Ultra
  • How to use the Dynamic Lock screen on Galaxy Note 10?
  • Galaxy Note 10 LED View Cover Guide and Review
  • Install S Note app and Extension pack on Galaxy Note 10
  • How to Use Galaxy Note 10 Camera App?
  • Galaxy Note 10 SIM Card Guide
  • How to use Samsung DeX for PC with Galaxy Note 10 and Galaxy Note 10+?
  • How to use Galaxy Note 10 Clear View cover (S View cover)?
  • How to charge Galaxy Note 10 battery?
  • How to use and remap Galaxy Note 10 Side key?

RSS Drive In Singapore

  • Top 5 rules of driving in Singapore safely and legally during COVID-19 Circuit Breaker period
  • Understand COE Price by 10 Simple Questions
  • How to convert a foreign driving license to a Singapore driving license?
  • How to get a Touch ‘n Go card as a Singapore driver?
  • What is covered in the car warranty in Singapore? What is not?
  • What is the Singapore Road Speed Limit?
  • How to register, collect and use Malaysia Vehicle Entry Permit (VEP)?
  • Why are cars in Singapore are so expensive?
  • Drive to Malaysia
  • Car Maintenance and Servicing in Singapore

RSS Moto G Guides

  • Moto G8 vs Moto G8 Power vs Moto G8 Power Lite vs Moto G Power vs Moto G Stylus vs Moto G Pro vs Moto G fast: What are the differences?
  • Moto G8 User Manual for Moto G8 Plus and Moto G8 Play
  • Moto G8 Plus vs Moto G8 Play: Differences and common features
  • Official Moto G7 user manual

RSS Chromecast Guides

  • How to enable developer options in Chromecast with Google TV?
  • What’s new in Chromecast 2018 (3rd gen of Chromecast)?
  • How to use Chromecast Audio to stream music? and how to control Chromecast Audio?
  • How to use the new Chromecast app?

RSS Headphone Guide Pro

  • AirPods Pro 2 New features explained
  • What is Samsung Seamless Codec? 4 things you should know about this new codec
  • How to use widgets to check battery levels and control Galaxy Buds 2, Galaxy Buds Pro, Galaxy Buds Live, Galaxy Buds+, and Galaxy Buds?
  • AirPods 3 vs AirPods Pro: which one should you choose?
  • AirPods 3 vs AirPods 2: Top 8 improvements and new features of AirPods 3

© 2015–2023 · GadgetGuideOnline.com is an online community for Gadget Owners! · Hosted by PTRHosting
· Powered by Genesis framework for WordPress

Samsung Galaxy S9 how-to guides, user manuals and tutorials! Everything about Samsung Galaxy S9 and Galaxy S9+.
Disclaimer: Samsung, Galaxy, Galaxy S9, and Galaxy S9+ are trademarks of Samsung. Android is a trademark of Google. This website is NOT affiliated with Samsung or Google in any way. All the information provided on this website is provided on an "as is" and "as available" basis and you agree that you use such information entirely at your own risk.