Galaxy S8 battery

How to use device maintenance in Galaxy S8 and Galaxy S8+?

Last updated on: October 19, 2017 · First published on: July 28, 2017 24 Comments

Device maintenance in Galaxy S8 and S8+ makes it easy to clean up and optimize the phone: free storage, clean up memory, close background apps, check abnormal battery usage and scan malware.

You can do it with one tap.

This Galaxy S8 how-to guide explains to you what you can do with device maintenance, and how to use these features.

What is device maintenance in Galaxy S8 and Galaxy S8+?

Device maintenance in Galaxy S8 and S8+ is not a new feature.

In Galaxy S6, Samsung introduced controversial smart manager. In Galaxy S7, Samsung corrected the mistakes in smart manager and rebranded it as device maintenance.

In Galaxy S8, new features were added and old features were further polished.

Most Galaxy S8 owners use device maintenance to clean up the phone.

But device maintenance in Galaxy S8 and Galaxy S8+ can do more. Some commonly used features include:

You can optimize (clean up) the phone with one tap.
You can check battery usage.
You can enable and customize battery saving modes.
You can enable and customize different performance modes.
You can check memory usage of all apps and clean up the memory.
You can manage the storage in Galaxy S8 and S8+, and to free up the storage.
You can scan the phone for malware.

So, device maintenance in Galaxy S8 and S8+ actually is a collection of tools to manage and optimize the phone.

How to access device maintenance in Galaxy S8 and Galaxy S8+?

There are at least three different ways to access device maintenance in Galaxy S8 and Galaxy S8+.

Method 1: from Galaxy S8 Settings

You can start Settings app, or tap Settings icon in notification panel to access Galaxy S8 settings.

In the Settings page as shown below, you then tap Device maintenance… Read the rest

How to fix Galaxy S8 moisture problem?

Last updated on: October 29, 2018 · First published on: July 6, 2017 133 Comments

Galaxy S8 moisture problem can occur for any phones, even the phone is not in contact with water!

When you have the moisture problem in Galaxy S8 or S8+, you cannot charge the phone through USB cable.

This Galaxy S8 how-to guide explains the causes of Galaxy S8 moisture problem and shows you the solution for such a moisture problem in Galaxy S8 and S8+.

Moisture problem message appears on many other Samsung phones. So, this guide also applies to the moisture problem on Galaxy S9, S9+, Note 8 and Note 9, and many other Samsung phones.

What is Galaxy S8 moisture problem? Isn’t Galaxy S8 waterproofed?

If you Galaxy S8 or S8+ was in contact with water, the USB port (multipurpose USB Type C port) in the bottom (see Galaxy S8 and S8+ layout) may be wetted.

Samsung equipped Galaxy S8 and S8+ with a humidity/moisture sensor to detect moisture buildup in the charging port.

Once the sensor detects the moisture is higher than a preset level, it will believe you get the Galaxy S8 moisture problem.

When you try to connect this Galaxy S8 or S8+ with moisture problem to the charger, the phone will refuse to charge the battery, and you will get a warning as shown below:

Check port

Moisture has been detected. To charge your device, make sure your charger/USB port is dry.

Preventing Galaxy S8 or S8+ from charging when moisture is detected in the USB port is a preventative measure to prevent more corrosion.

It is also a security measure.

Please note, Galaxy S8 moisture problem has nothing to do with waterproofing feature in Galaxy S8 and S8+.

The USB port is not sealed in Galaxy S8 and S8+. It is safe even if the USB port is immersed in water … Read the rest

Meaning of Galaxy S8 status icons and notification icons in Samsung Galaxy S8 and S8+

Last updated on: March 24, 2018 · First published on: May 22, 2017 75 Comments

Galaxy S8 status icons and notification icons in the status bar offer you a quick glimpse of system status and notifications.

This guide explains the meaning of Galaxy S8 status icons and notification icons in Samsung Galaxy S8 and S8+.

What are Galaxy S8 status icons and notification icons?

As explained in Galaxy S8 Home screen, the top part of the phone screen is called status bar as shown below.

Of course, the status bar is in all screens (home screen, lock screen and apps screen) and in all apps. Even in full-screen mode, you can swipe down to bring back the status bar.

Anyway, Android does not allow you to disable status bar. You can only temporally hide it.

In the status bar, in addition to the time in the rightmost, you can find icons grouped in the left and right side of the status bar.

Normally, icons on the right side are called status icon which indicating status of system related features, like battery and network.

Icons on the left side are usually named as notification icons, which are usually (not always) associated with a notification message.

Third-party app notification icons will always appear on the left side.

Meaning of Galaxy S8 status icons and notification icons in Samsung Galaxy S8 and S8+

To use Galaxy S8 or S8+ effectively, you need to understand the meaning of Galaxy S8 status icons and notification icons, because they offer quick info on what’s going on in the hone.

In this guide, we group status icons and notification icons into 6 parts.

Part 1: Mobile network related status icons in Samsung Galaxy S8 and S8+

You can use Galaxy S8 or S8+ without a SIM card. You can use most of the apps with WiFi connections. But this means … Read the rest

Charge Galaxy S8 battery

Last updated on: July 13, 2017 · First published on: April 19, 2017 62 Comments

Everything you need to know about charging Galaxy S8 battery: what chargers can be used to charge Galaxy S8 battery, how to use a wall charger, wireless charger or fast wireless charger to charge the battery in Galaxy S8 and S8+, how to disable fast charging or fast wireless charging in Galaxy S8 and S8+, and how to properly charge Galaxy S8 battery.

Samsung Galaxy S8 and S8+ use a non-removable battery, which can only be replaced at Samsung service center. It is impossible to carry a spare battery for Galaxy S8 or S8+.

So, it is important to charge Galaxy S8 battery properly to let the battery serve you at least one to two years.

What chargers can be used to charge Galaxy S8 battery?

In your Galaxy S8 (or S8+) box, you can find the adaptive wall charger (and the USB cable).

Of course, you can use other chargers to charge Galaxy S8 battery.

Namely, you can use any of the 4 types of chargers to charge the battery in Galaxy S8 and S8+:

adaptive wall charger (fast charger) included in the Galaxy S8 box;
standard USB wall charger;
wireless charging pad; or
fast charging wireless charging pad.

Adaptive wall charger (fast charger)

The bundled wall charger in the box is an adaptive charger, which can adjust its output based on feedback from the phone.

In other words, the adaptive wall charger will automatically adjust the charging power to offer fast charging.

For Galaxy S8 and S8+, the adaptive wall charger can charge Galaxy S8 battery at 9v 1.67A when the battery level is lower than about 60%.

When battery level is higher than about 60%, the wall charger will automatically switch charging voltage to 5V and charging current up to 2A.

So, … Read the rest

How to power on, power off and reboot Galaxy S8 and S8+ even when phone hangs?

Last updated on: April 13, 2017 · First published on: April 13, 2017 42 Comments

You may know you can use power button to power on Galaxy S8 or power off Galaxy S8 and S8+.

But do you know how to power off Galaxy S8 and S8+ if your Galaxy S8 or S8+ hangs and does not respond to power button?

This guide will show you how to power on, power off and reboot Galaxy S8 and S8 at any situations, including when the phone hangs (power button is not responsive).

Use power button to power on Galaxy S8, power off Galaxy S8, and to reboot Galaxy S8 and S8+

When Galaxy S8 or S8+ is powered off, you can always press and hold power button for a few seconds to power on (turn on) the phone as shown below.

Please note, Galaxy S8 (and S8+) power button is located in the right side of the phone as explained in Galaxy S8 layout and Galaxy S8+ layout page.

Some owners may press the Bixby button, which is located in the left side of Galaxy S8 and S8+ and below volume buttons, mistakenly for power button.

When the phone is powered on, if you press and hold power button for more than 7 seconds, you will then reboot Galaxy S8 and S8+. This is considered as forced reboot.

If you press and hold the power button for 2-4 seconds, you will get the Galaxy S8 power button options:

Power off. Tap this button (marked as 1 in the screenshot below) to power off Galaxy S8 and S8+.
Restart. Tap this button (marked as 2 in the screenshot below) to reboot Galaxy S8 or S8+. This essentially is powering off Galaxy S8, then powering it on.
Use emergence mode.

Using power button options is the safest way to reboot Galaxy S8 or … Read the rest

Top 8 missing features of Galaxy S8 and S8+ that may annoy you

Last updated on: October 6, 2017 · First published on: April 4, 2017 11 Comments

There are some missing features of Galaxy S8 that may annoy you, although Samsung Galaxy S8 and Galaxy S8+ are surely one of the hottest flagship smartphones in 2017 based on specs and new features.

Actually, the sales number of Samsung Galaxy S8 and S8+ will surely beat all other Android phones. But this does not mean Galaxy S8 and S8+ are perfect or the best.

You may notice that some important features are missing in Galaxy S8 and S8+. These missing features of Galaxy S8 may be relevant to some users.

So, we hope this list of the top 8 missing features of Galaxy S8 and S8+ can help you make the decision before pre-ordering the phone.

#1 of top 8 missing features of Galaxy S8: smaller battery

As a reaction to the failure of Galaxy Note 7 battery, Samsung is extremely careful with Galaxy S8 and S8+ battery.

They apparently did not push the design and engineering limit for a bigger battery for S8 and S8+. And if Galaxy S8 battery fails again, Samsung will probably be in the death spiral in smartphone market.

The result is the smaller battery.

It is so small that you should concern about the battery life, although Samsung claimed similar battery life as Galaxy S7.

As a comparison, the 5.8-inch Galaxy S8 has a 3000mAh battery, whose capacity is identical to that of the 5.1-inch Galaxy S7.

And the 6.2-inch Galaxy S8+ has a 3500mAh battery, which is even smaller than that (3600mAh) in the 5.5-inch Galaxy S7 edge.

The new 10nm processor may help save some battery. But the screen, which is bigger now, usually is the major battery drainer. There are no new technologies in the Super AMOLED screen for battery saving.

So, … Read the rest