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Samsung Galaxy A40s - User Manual

Samsung Galaxy A40s
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www.samsung.com/hk
USER MANUAL
English (HK). 05/2021. Rev.1.0
SM-A3050

Table of Contents

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Summary

Basics

Read Me First

Important information and precautions before using the device for safe and proper operation.

Device Overheating Situations and Solutions

Explains causes of device heating and provides solutions to prevent damage and ensure safety.

Device Layout and Functions

Details the physical layout of the device and the functions of its various components and keys.

Charging the Battery

Instructions on how to charge the device battery safely and efficiently using approved accessories.

SIM or USIM Card (nano-SIM card)

Guides on inserting and managing SIM or USIM cards, including dual SIM functionality.

Turning the Device On and Off

Procedures for powering the device on, turning it off, and performing a forced restart.

Fingerprint Recognition

How to register, use, and manage fingerprints for device unlock and authentication.

Face Recognition

Steps for registering and using facial recognition to unlock the device securely.

Camera

Overview of camera features, modes, settings, and etiquette for taking photos and videos.

Apps and Features

Samsung Account

Information on creating, signing in, and managing a Samsung account for device services.

Transferring Data from Your Previous Device (Smart Switch)

Guides on using Smart Switch to transfer data via USB cable or wirelessly.

Understanding the Screen

Details on touchscreen gestures, navigation bar functions, and screen interaction.

Home Screen and Apps Screen

How to navigate, edit, and organize apps and content on the Home and Apps screens.

Entering Text

Information on keyboard layout, changing input languages, and text entry functions.

Phone

Instructions for making and receiving calls, using speed dial, and blocking numbers.

Contacts

How to add, import, search, share, and manage contacts on the device.

Internet

How to browse the web, use secret mode, and manage bookmarks and tabs.

Multi Window

Using split screen and pop-up view to run multiple apps simultaneously.

Screen Capture

Methods for capturing screenshots and using the toolbar options after capture.

Settings

Connections

Managing Wi-Fi, Bluetooth, mobile networks, and hotspot settings for device connectivity.

Wi-Fi

How to connect to Wi-Fi networks, share passwords, and view network quality.

Bluetooth

Pairing with Bluetooth devices and sending/receiving data wirelessly.

Sounds and Vibration

Customizing ringtones, notification sounds, vibration patterns, and sound effects.

Display

Adjusting screen brightness, dark mode, eye comfort shield, and other display settings.

Biometrics and Security

Securing the device with fingerprints, face recognition, and other security options.

Secure Folder

Creating and managing a secure, private storage area for sensitive content and apps.

Privacy

Managing app permissions, location services, and personal data settings.

Accounts and Backup

Managing accounts, backing up data to Samsung Cloud, and restoring device information.

Battery and Device Care

Monitoring battery status, storage, memory, and optimizing device performance.

General Management

Customizing system settings like language, keyboard, date/time, and device reset options.

Troubleshooting

Your Device Does Not Turn On

Solutions for when the device fails to power on, typically related to battery discharge.

The Touchscreen Responds Slowly or Improperly

Tips to resolve issues with unresponsive or slow touchscreen performance.

Calls Are Not Connected

Troubleshooting steps for problems with making or receiving phone calls.

The Battery Does Not Charge Properly

Steps to resolve issues where the battery is not charging correctly.

Bluetooth Is Not Working Well

Solutions for common Bluetooth connection problems and performance malfunctions.

Data Stored in the Device Has Been Lost

Emphasis on data backup importance and Samsung's responsibility for data loss.

Samsung Galaxy A40s Specifications

General IconGeneral
Display6.4 inches
Display TypeSuper AMOLED
Resolution720 x 1560 pixels
ProcessorExynos 7904
RAM4 GB
Internal Storage64 GB
Rear Camera13 MP + 5 MP + 5 MP
Front Camera16 MP
Battery5000 mAh
Operating SystemAndroid 9.0 (Pie)
CPUOcta-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
GPUMali-G71 MP2

Videos

How to Reset & Unlock Samsung Galaxy A40s

How To Take Screenshot In Samsung Galaxy A40s

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