power off Galaxy S20

How to use Galaxy S20 lockdown mode?

By simon Leave a Comment Last Modified: January 9, 2021 · Published on: January 8, 2021

Galaxy S20 lockdown mode allows you to turn off biometric and smart lock in some special situations to enhance security and privacy protection.

This Galaxy S20 guide explains what Galaxy S20 lockdown mode is, when to use it, how to enable and exit the lockdown mode.

The lockdown mode is available in all Samsung Galaxy phones with Android Pie (Android 9), Android 10, or Android 11. So, this guide applies to not only Galaxy S20 phones but also Galaxy phones with Android 9 and later versions including Galaxy S8, Galaxy S9, Galaxy S10, Galaxy Note 8, Galaxy Note 9, Galaxy Note 10, and Galaxy Note 20.

What is Galaxy S20 lockdown mode?

Android 9 (Android Pie) introduced the lockdown mode to boost phone security on-the-fly. And Samsung implemented it in all od their Galaxy phones with Android 9 or later Android OS.

Galaxy S20 lockdown mode, once activated, blocks all biometric security (face unlock and fingerprint) and smart lock. In the lockdown mode, the only way to unlock your Galaxy S20 is using the primary PIN, Pattern or Password.

Voice recognition (Bixby and Google Assistant) will also not work when the lockdown mode is activated.

Besides, all notifications that would usually be displayed on the Galaxy S20 lock screen will be hidden, and you can only read them after you unlock the phone.

In a nutshell, Galaxy S20 lockdown mode:

Force you to use PIN, Pattern or Password to unlock Galaxy S20.
Hide all notifications from the lock screen regardless of the notification settings for the lock screen.

Therefore, it is a security feature, not a convenience feature.

Please note, Galaxy S20 lockdown mode is a one-time feature. It means it will return to normal once you unlock Galaxy S20 with PIN, pattern or password. If you need the mode again, you have to activate it again.

If you want to use the lockdown mode permanently, you may set the phone in this way:

Delete the registered facial features and fingerprints
Reset the smart lock and remove any trusted devices and locations.
Choose not to show any notification on the lock screen.
Disable Bixby and Google Assistant on the lock screen.

Anyway, this would cause some inconveniences.

When to use Galaxy S20 lockdown mode?

Using face recognition to unlock Galaxy S20 is usually blazingly … Read the rest

How to use Galaxy S20 recovery mode?

By simon Leave a Comment Last Modified: January 10, 2021 · Published on: December 19, 2020

Galaxy S20 recovery mode allows you to access some very special and advanced features to manage, hack and reset Galaxy S20.

This Galaxy S20 guide explains what Galaxy S20 recovery mode is, when you need to use it, how to reboot into the recovery mode, and how to navigate and exit the recovery mode.

The Galaxy S20 recovery mode is identical on all 4 Galaxy S20 modes: Galaxy S20, S20+, S20 FE, and S20 Ultra. So this guide applies to all these phones.

What is Galaxy S20 recovery mode?

All Android phones and tablets come with a recovery mode. Galaxy S20 is not an exception. Android vendors may add or remove some features in the recovery mode.

On Galaxy S20, you can use the recovery mode to (as shown in the picture below):

Wipe cache partition. This would wipe the cache partition to refresh apps without affecting your data on Galaxy S20.
Reset (factory data reset) Galaxy S20. Some geeks may refer this to “wipe” the phone. You can erase all your data and return the phone to factory state. But it does not rollback the Android version or any updates.
Update Galaxy S20 from ADB. If you want to sideload the update from your PC, you can do it using ADB. For example, you may manually update Galaxy S20 to Android 11 if you want
Update Galaxy S20 from the micro SD card. You can also apply updates saved in the micro SD card.
Reboot into bootloader (download mode). It allows you to enter download mode. For example, you want to install third-party recovery.
Mount /system partition. It is supposed to let you edit and correct some errors in the system partition without rooting. But it seems it is not working.
Run graphics test. It simply shows how the graphics (UI) like when the phone in different states, e.g., erasing, updating, optimizing apps. It has nothing to do with GPU or display.
View recovery logs.
Run locale test. Check the locale on the phone.
Repair apps. This allows you to manually optimise apps (rebuild app cache and data cache).
Power off Galaxy S20.

We will explain some of them later on.

When do you need to use Galaxy S20 recovery mode?

Galaxy S20 recovery mode is NOT designed for normal users. Most Galaxy S20 owners … Read the rest

How to use a micro SD card on Galaxy S20?

By simon Leave a Comment Last Modified: December 19, 2020 · Published on: June 9, 2020

Samsung always supports the micro SD card support on all Galaxy S and Galaxy Note phones except on Galaxy S6 and Galaxy Note 5. Galaxy S20 can support a micro SD card up to 1TB.

But the support of the micro SD card on Galaxy S20 is different from that in stock Android.

This Galaxy S20 guide explains the supported micro SD card features on Galaxy S20, the requirements of using a micro SD card, how to add and manage the SD card, how to move apps to the micro SD card and how to mount and unmount the SD card on Galaxy S20, and how to choose an SD card for Galaxy S20.

In this guide, Galaxy S20 refers to Galaxy S20, Galaxy S20+, and Galaxy S20 Ultra.

Does Galaxy S20 support adoptable storage so that I can use the micro SD card as internal storage?

No, Galaxy S20 does not support the adoptable storage. But Galaxy S20 does support moving apps to the micro SD card.

Since Android Marshmallow (Android 6), Google introduced the adoptable storage to let you use the micro SD card as internal storage. It essentially increases the internal storage capacity at a far lower price.

Of course, due to performance limitations of the micro SD card, most flagship Android phones do not support the adoptable storage. Some, for example, Google Pixel phones, do not have a micro SD card slot at all. The adoptable storage support can be found in many middle-range and budget Android phones.

The other option is to use the micro SD card as portable storage, where you can save your own files, for example, your music or media collections. Apps can also request to access the portable storage to download and save large files. The “flagship” (usually means expensive and overpriced) Android phones with a micro SD card support, often only support the portable storage.

Unlike other Android vendors, Samsung chose a proprietory way to support micro SD card. It is somewhere between adoptable storage and portable storage.

You cannot format the micro SD card as the internal storage on Galaxy S20.
But you can move most apps to the micro SD card if you want.

Actually, this is a better implementation than the adoptable or portable storage, because

The micro SD card is portable. You can share the media files on the SD card on any

… Read the rest

How to power on, power off, and restart Galaxy S20?

By simon Leave a Comment Last Modified: January 9, 2021 · Published on: May 25, 2020

You need to power on, power off, or restart (reboot) Galaxy S20 from time to time when using the phone.

Although it is usually a simple task to turn on or turn off Galaxy S20, it can be frustrating, especially when the phone hangs and you need to use Galaxy S20 urgently.

This Galaxy S20 guide shows you how to power on (turn on), power off (turn off), and restart (reboot) Galaxy S20, even when the phone hangs (non-responsive).

The guide applies to all three models of Galaxy S20: Galaxy S20, Galaxy S20+, and Galaxy S20 Ultra.

Power on Galaxy S20 (turn on, power up)

When the phone is off, you can hold the Side key (see Galaxy S20 layout) to power on (turn on) Galaxy S20 normally.

Please note, Samsung combined the old Power key with the unpopular Bixby key as the Galaxy S20 Side key.

As shown in the Galaxy S20 layout, the Side key is located on the right side of the phone, below the volume key. There is no physical keys or buttons on the left side any more.

Please note, if you hold volume buttons and the Side key, then you may:

Boot into Galaxy S20 recovery mode if you hold volume up button and the Side key.
Boot into Galaxy S20 download mode if you hold volume down and the Side Key.
Boot into Galaxy S20 safe mode if you hold the side Key, release the Side key and hold volume down key when you see Samsung logo.

Power off Galaxy S20 (turn off)

There is no hardware button (key) to power off Galaxy S20. If you hold the Side key, Galaxy S20 will reboot (restart), instead of powering off the phone. But sometimes, you need to power off Galaxy S20, e.g., when you enter a restricted area, or when you want to boot into Galaxy S20 recovery mode.

To power off Galaxy S20 gracefully, you need to use the software Power off button, which can be accessed in various locations on Galaxy S20.

Please note, if you power off Galaxy S20, you cannot receive calls from the phone. Text messages (SMS) will be saved by your carrier and delivered to the phone after you power on the phone and connect to the mobile network. You may check this guide on how to use SIM cards on Galaxy S20.

Galaxy

… Read the rest