www.samsung.com/hkUser ManualEnglish (HK). 12/2017. Rev.1.0SM-J250F/DS
Basics10•Connectivity problems and battery drain may occur in the following situations:–If you attach metallic stickers on the antenna area of the d
Settings100Device maintenanceThe device maintenance feature provides an overview of the status of your device’s battery, storage, memory, and system s
Settings101BatteryCheck the remaining battery power and time to use the device. For devices with low battery levels, conserve battery power by activat
Settings102Managing the memoryTo delete residual files, such as cache, tap CLEAN NOW. To delete files or uninstall apps that you do not use any more,
Settings103•Information and FaceWidgets: Change the settings of the items displayed on the screen when it is off or locked.•Notifications: Set wheth
Settings104Secure FolderSecure Folder protects your private content and apps, such as photos and contacts, from being accessed by others. You can keep
Settings1054 Select a lock method to use for Secure Folder and follow the on-screen instructions to complete the setup.To change the name or icon colo
Settings106Moving content from Secure FolderMove content from Secure Folder to the corresponding app in the default storage. The following actions are
Settings107Hiding Secure FolderYou can hide the Secure Folder shortcut from the Apps screen.Launch the Secure Folder app, tap → Settings, and then t
Settings108Uninstalling Secure FolderYou can uninstall Secure Folder, including the content and apps in it.Launch the Secure Folder app and tap → Se
Settings109Backup and restoreKeep your personal information, app data, and settings safe on your device. You can back up your sensitive information an
Basics11BatteryInstalling the battery1 Remove the back cover.Be careful not to damage your fingernails when you remove the back cover.Do not bend or t
Settings110AccessibilityConfigure various settings to improve accessibility to the device.On the Settings screen, tap Accessibility.•Vision: Customis
Settings111•Report diagnostic information: Set the device to automatically send the device’s diagnostic and usage information to Samsung.•Marketing
Settings112Software updateUpdate your device’s software via the firmware over-the-air (FOTA) service. You can also schedule software updates.On the Se
Settings113User manualView help information to learn how to use the device and apps or configure important settings.On the Settings screen, tap User m
114AppendixTroubleshootingBefore contacting a Samsung Service Centre, please attempt the following solutions. Some situations may not apply to your de
Appendix115The touchscreen responds slowly or improperly•If you attach a screen protector or optional accessories to the touchscreen, the touchscreen
Appendix116Calls are not connected•Ensure that you have accessed the right cellular network.•Ensure that you have not set call barring for the phone
Appendix117The battery does not charge properly (For Samsung-approved chargers)•Ensure that the charger is connected properly.•If the battery termin
Appendix118Error messages appear when opening multimedia filesIf you receive error messages or multimedia files do not play when you open them on your
Appendix119Your device cannot find your current locationGPS signals may be obstructed in some locations, such as indoors. Set the device to use Wi-Fi
Basics123 Replace the back cover.Removing the battery1 Remove the back cover.2 Pull out the battery.
Appendix120The screen brightness adjustment bar does not appear on the notification panelOpen the notification panel by dragging the status bar downwa
CopyrightCopyright © 2017 Samsung ElectronicsThis manual is protected under international copyright laws.No part of this manual may be reproduced, dis
Basics13Charging the batteryCharge the battery before using it for the first time or when it has been unused for extended periods.Use only Samsung-app
Basics14Reducing the battery consumptionYour device provides various options that help you conserve battery power.•Optimise the device using the devi
Basics15SIM or USIM cardInstalling the SIM or USIM cardInsert the SIM or USIM card provided by the mobile telephone service provider.You can insert tw
Basics16Removing the SIM or USIM card1 Remove the back cover and battery.2 Pull out the SIM or USIM card.Using dual SIM or USIM cardsIf you insert two
Basics17Memory card (microSD card)Installing a memory cardYour device’s memory card capacity may vary from other models and some memory cards may not
Basics18Removing the memory cardBefore removing the memory card, first unmount it for safe removal.Launch the Settings app and tap Device maintenance
Basics19Turning the device on and offPress and hold the Power key for a few seconds to turn on the device.When you turn on your device for the first t
2Table of ContentsBasics4 Read me first5 Device overheating situations and solutions8 Device layout and functions11 Battery15 SIM or USIM card17
Basics20Initial setupWhen you turn on your device for the first time or after performing a data reset, follow the on-screen instructions to set up you
Basics216 Sign in to your Samsung account. You can enjoy Samsung services and keep your data up to date and secure across all of your devices. Refer t
Basics22Samsung accountIntroductionYour Samsung account is an integrated account service that allows you to use a variety of Samsung services provided
Basics233 Enter your email address and password, and then tap SIGN IN.If you forget your account information, tap Forgotten your ID or password? You c
Basics24Smart SwitchTransfer data between mobile devices via Smart Switch. If you do not have the app, download it from Galaxy Apps or Play Store.Tran
Basics25Transferring backup data from a computerTransfer data between your device and a computer. You must download the Smart Switch computer version
Basics26Samsung CloudBack up data from your previous device to Samsung Cloud and restore the data to your new device. You must register and sign in to
Basics27Understanding the screenControlling the touchscreen•Do not allow the touchscreen to come into contact with other electrical devices. Electros
Basics28DraggingTap and hold an item and drag it to the target position.Double-tappingDouble-tap the screen.SwipingSwipe upwards, downwards, to the le
Basics29Home screen and Apps screenThe Home screen is the starting point for accessing all of the device’s features. It displays widgets, shortcuts to
Table of Contents3Appendix114 TroubleshootingSettings86 Introduction86 Connections87 Wi-Fi89 Bluetooth91 Mobile Hotspot and Tethering92 SIM card man
Basics30Switching between Home and Apps screensOn the Home screen, swipe upwards or downwards to open the Apps screen. To return to the Home screen, s
Basics31Creating foldersCreate folders and gather similar applications to quickly access and launch apps.1 On the Home screen or the Apps screen, tap
Basics32Editing the Home screenOn the Home screen, tap and hold an empty area, or pinch your fingers together to access the editing options. You can s
Basics33Indicator iconsIndicator icons appear on the status bar at the top of the screen. The icons listed in the table below are most common.The stat
Basics34Lock screenPressing the Power key turns off the screen and locks it. Also, the screen turns off and automatically locks if the device is not u
Basics35Screen captureCapture a screenshot while using the device.Press and hold the Home key and the Power key simultaneously. You can view captured
Basics36You can use the following functions on the notification panel.Tap a notification and perform various actions.Clear all notifications.Launch Se
Basics37Entering textKeyboard layoutA keyboard appears automatically when you enter text to send messages, create notes, and more.Text entry is not su
Basics38Additional keyboard functions• : Add an item from the clipboard.• → CANGJIE: Switch to the qwerty keyboard.• → STROKE: Switch to stroke mod
39Apps and featuresInstalling or uninstalling appsGalaxy AppsPurchase and download apps. You can download apps that are specialised for Samsung Galaxy
4BasicsRead me firstPlease read this manual before using the device to ensure safe and proper use.•Descriptions are based on the device’s default set
Apps and features40Managing appsUninstalling apps and using app sleep modeTap and hold an app and select an option.•Disable: Disable selected default
Apps and features41PhoneIntroductionMake or answer voice calls.Making calls1 Launch the Phone app and enter a phone number.If the keypad does not appe
Apps and features42Making calls from call logs or contacts listTap RECENTS or CONTACTS, and then swipe to the right on a contact or a phone number to
Apps and features43Receiving callsAnswering a callWhen a call comes in, drag outside the large circle.Rejecting a callWhen a call comes in, drag o
Apps and features44Options during callsDuring a voice callThe following actions are available:• : Access additional options.•Add call: Dial a second
Apps and features45ContactsIntroductionCreate new contacts or manage contacts on the device.Adding contactsCreating a new contact1 Launch the Contacts
Apps and features46Importing contactsAdd contacts by importing them from other storages to your device.1 Launch the Contacts app and tap → Manage co
Apps and features47Sharing contactsYou can share contacts with others by using various sharing options.1 Launch the Contacts app and tap → Share.2 S
Apps and features48Merging duplicate contactsWhen you import contacts from other storages, or sync contacts with other accounts, your contacts list ma
Apps and features493 Enter a message.Access additional options.Enter a message.Add recipients from the contacts list.Enter emoticons.Attach files.Edit
Basics5Instructional iconsWarning: situations that could cause injury to yourself or othersCaution: situations that could cause damage to your device
Apps and features50Blocking unwanted messagesBlock messages from specific numbers added to your block list.1 Launch the Messages app and tap → Setti
Apps and features51InternetIntroductionBrowse the Internet to search for information and bookmark your favourite webpages to access them conveniently.
Apps and features52Using secret modeIn secret mode, you can separately manage open tabs, bookmarks, and saved pages. You can lock secret mode using a
Apps and features53EmailSetting up email accountsSet up an email account when opening Email for the first time.1 Open the Samsung folder and launch th
Apps and features54CameraIntroductionTake photos and record videos using various modes and settings.Camera etiquette•Do not take photos or record vid
Apps and features55Using swipe gesturesQuickly control the preview screen by swiping in different directions. You can change the shooting mode, switch
Apps and features56Viewing filter effectsOn the preview screen, swipe to the left to open the list of filter effects. You can apply a unique effect to
Apps and features57Basic shootingTaking photos or recording videos1 Tap the image on the preview screen where the camera should focus.2 Tap to take
Apps and features58Locking the focus (AF) and exposure (AE)You can lock the focus or exposure on a selected area to prevent the camera from automatica
Apps and features59Pro modeTake photos while manually adjusting various shooting options, such as exposure value and ISO value.On the shooting modes l
Basics6When the device heats up during useWhen you use features or apps that require more power or use them for extended periods, your device may temp
Apps and features60Continuous shotTake a series of photos of moving subjects.On the shooting modes list, tap Continuous shot.Tap and hold to take sev
Apps and features61SportsTake a photo of fast-moving subjects.On the shooting modes list, tap Sports.Sound & shotTake a photo with sound. The devi
Apps and features62Applying beauty effectsYou can modify facial features, such as your skin tone or face shape, before taking self-portraits.This feat
Apps and features63Camera settingsOn the preview screen, tap . Some options may not be available depending on the shooting mode.REAR CAMERA•Picture
Apps and features64•Quick launch: Set the device to launch the camera by pressing the Home key twice quickly.•Storage location: Select the memory lo
Apps and features65Viewing images and videosViewing images1 Launch the Gallery app and tap PICTURES.2 Select an image.Access additional options.Modify
Apps and features66Viewing videos1 Launch the Gallery app and tap PICTURES.2 Select a video to play. Video files show the icon on the preview thumbn
Apps and features67Creating storiesCreate stories with various themes.1 Launch the Gallery app and tap STORIES.2 Tap → Create story.3 Tick images or
Apps and features68Deleting stories1 Launch the Gallery app and tap STORIES.2 Tap and hold a story to delete, and tap DELETE.Syncing images and videos
Apps and features69Multi windowIntroductionMulti window lets you run two apps at the same time in the split screen view.Some apps may not support this
Basics7Do the following when the device heats up:•Keep the device updated with the latest software.•Conflicts between running apps may cause the dev
Apps and features70Using additional optionsTap the bar between the app windows to access additional options.Close the app.Switch locations between app
Apps and features71Minimising the split screen viewPress the Home key to minimise the split screen view. The icon will appear on the status bar. The
Apps and features72Samsung MembersSamsung Members offers support services to customers, such as device problem diagnosis, and lets users submit questi
Apps and features73Samsung NotesIntroductionCreate notes by entering text from the keyboard or by writing or drawing on the screen. You can also inser
Apps and features74CalendarIntroductionManage your schedule by entering upcoming events or tasks in your planner.Creating events1 Launch the Calendar
Apps and features75Creating tasks1 Launch the Calendar app and tap VIEW → Tasks.2 Tap and enter task details.3 Tap SAVE to save the task.Syncing eve
Apps and features76Using Samsung HealthYou can view the key information from Samsung Health menus and trackers to monitor your wellness and fitness. Y
Apps and features77TOGETHERTogether allows you to set up step count goals and compete with your friends. You can invite friends to walk together, set
Apps and features78Additional information•Samsung Health is intended for fitness and wellness purposes only and is not intended for use in the diagno
Apps and features79Voice RecorderUse this app to record or play voice memos.1 Open the Samsung folder and launch the Voice Recorder app.2 Tap to sta
Basics8Precautions for operating environmentYour device may heat up due to the environment in the following conditions. Use caution to avoid shortenin
Apps and features80ClockIntroductionSet alarms, check the current time in many cities around the world, time an event, or set a specific duration.ALAR
Apps and features81STOPWATCH1 Launch the Clock app and tap STOPWATCH.2 Tap START to time an event.To record lap times while timing an event, tap LAP.3
Apps and features82RadioListening to the FM radioLaunch the Radio app.Before you use this app, you must connect a headset, which serves as the radio a
Apps and features83Sharing contentShare content by using various sharing options. The following actions are an example of sharing images.You may incur
Apps and features84Google appsGoogle provides entertainment, social network, and business apps. You may require a Google account to access some apps.T
Apps and features85YouTubeWatch or create videos and share them with others.PhotosSearch for, manage, and edit all your photos and videos from various
86SettingsIntroductionCustomise settings for functions and apps. You can make your device more personalised by configuring various setting options.Lau
Settings87•Mobile Hotspot and Tethering: Use the device as a mobile hotspot to share the device’s mobile data connection with other devices when the
Settings88Wi-Fi DirectWi-Fi Direct connects devices directly via a Wi-Fi network without requiring an access point.1 On the Settings screen, tap Conne
Settings89BluetoothUse Bluetooth to exchange data or media files with other Bluetooth-enabled devices.•Samsung is not responsible for the loss, inter
Basics9Device layoutPower keyBack keyMicrophoneRecents keyHome keyMultipurpose jack Front cameraProximity sensorFlashSpeakerTouchscreenVolume ke
Settings90Sending and receiving dataMany apps support data transfer via Bluetooth. You can share data, such as contacts or media files, with other Blu
Settings91Mobile Hotspot and TetheringUse the device as a mobile hotspot to share the device’s mobile data connection with other devices when the netw
Settings92SIM card managerActivate your SIM or USIM cards and customise the SIM card settings. Refer to Using dual SIM or USIM cards for more informat
Settings93PrintingConfigure settings for printer plug-ins installed on the device. You can connect the device to a printer via Wi-Fi or Wi-Fi Direct,
Settings94Sounds and vibrationChange settings for various sounds on the device.On the Settings screen, tap Sounds and vibration.•Sound mode: Set the
Settings95•On lock screen: Show or hide notifications from the selected app when the device is locked.•Set as priority: Display notifications at the
Settings96Blue light filterReduce eye strain by limiting the amount of blue light emitted by the screen.While you are watching HDR videos from HDR-exc
Settings97Optimising the full screen colour balanceOptimise the display colour by adjusting the colour tones to your preference.When you drag the colo
Settings98ScreensaverYou can set to display images as a screensaver when the screen turns off automatically. The screensaver will be displayed when th
Settings99Advanced featuresActivate advanced features and change the settings that control them.On the Settings screen, tap Advanced features.Excessiv
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