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Basics

15

SIM or USIM card (nano-SIM card)

Insert the SIM or USIM card provided by the mobile telephone service provider.
For dual SIM models, you can insert two SIM or USIM cards so you can have two phone 
numbers or service providers for a single device. In some areas, data transfer speeds may be 
slower if two SIM cards are inserted in the device than when one SIM card is inserted.

Some services that require a network connection may not be available depending on 
the service provider.

Installing the SIM or USIM card

2

1

3

4

Single SIM card tray 

Dual SIM card tray 

Insert the ejection pin into the hole next to the tray to loosen the tray.

Pull out the tray gently from the tray slot.

Place the SIM or USIM card on the tray with the gold-coloured contacts facing downwards 
and gently press the SIM or USIM card into the tray to secure it.

Summary of Contents for SM-A127F/DS

Page 1: ...www samsung com USER MANUAL English 07 2021 Rev 1 0 SM A127F SM A127F DS SM A127F DSN...

Page 2: ...Transferring data from your previous device Smart Switch 23 Understanding the screen 32 Notification panel 34 Entering text Apps and features 36 Installing or uninstalling apps 37 Phone 40 Contacts 42...

Page 3: ...eshooting 103 Removing the battery Settings 67 Introduction 67 Samsung account 67 Connections 69 Wi Fi 70 Bluetooth 71 NFC and contactless payments NFC enabled models 72 Data saver 73 Mobile data only...

Page 4: ...ustomise the operating system may cause the device or apps to work improperly Software sound sources wallpapers images and other media provided with this device are licensed for limited use Extracting...

Page 5: ...tap Display and then tap the Adaptive brightness switch to activate it Depending on the region or model some devices are required to receive approval from the Federal Communications Commission FCC If...

Page 6: ...device and close any running apps Wait for the device to cool down and then begin charging the device again If the lower part of the device overheats it could be because the connected USB cable is da...

Page 7: ...r while the device is placed in direct sunlight When using the mobile hotspot and tethering feature When using the device in areas with weak signals or no reception When charging the battery with a da...

Page 8: ...the device will turn off Do not use the device until the device s temperature drops below the specified level If the second warning message appears during an emergency call the call will not be discon...

Page 9: ...s and specifications are subject to change without prior notice You can purchase additional accessories from your local Samsung retailer Make sure they are compatible with the device before purchase U...

Page 10: ...ecognition sensor Volume key Front camera Multipurpose jack USBType C Speaker Earphone jack SIM card Memory card tray Touchscreen Rear camera Flash Speaker Microphone Main antenna NFC antenna NFC enab...

Page 11: ...e speaker or receiver the device s sound may become quiet or certain features may not work If you attempt to remove the dust or foreign materials with a sharp object the device may be damaged and its...

Page 12: ...eenshot Press and hold simultaneously to turn off the device Setting the Side key Select an app or feature to launch by pressing the Side key twice Launch the Settings app tap Advanced features Side k...

Page 13: ...harger when not in use The charger does not have a power switch so you must unplug the charger from the electric socket when not in use to avoid wasting power The charger should remain close to the el...

Page 14: ...to another device the battery will drain quickly To avoid losing power during a data transfer always use these apps after fully charging the battery Using a power source other than the charger such as...

Page 15: ...e inserted in the device than when one SIM card is inserted Some services that require a network connection may not be available depending on the service provider Installing the SIM or USIM card 2 1 3...

Page 16: ...rd may leave or fall out of the tray If you insert the tray into your device while the tray is wet your device may be damaged Always make sure the tray is dry Fully insert the tray into the tray slot...

Page 17: ...o the tray to secure it 4 Insert the tray back into the tray slot Some memory cards may not be fully compatible with the device Using an incompatible card may damage the device or the memory card or c...

Page 18: ...ettings app and tap Battery and device care Storage Advanced SD card Unmount Do not remove external storage such as a memory card or USB storage while the device is transferring or accessing informati...

Page 19: ...Press and hold the Side key for a few seconds to turn on the device Turning the device off 1 To turn off the device press and hold the Side key Alternatively open the notification panel swipe downwar...

Page 20: ...u turn on your device for the first time or after performing a data reset follow the on screen instructions to set up your device If you do not connect to aWi Fi network you may not be able to set up...

Page 21: ...t password and then tap OK Transferring data from your previous device Smart Switch You can use Smart Switch to transfer data from your previous device to your new device Launch the Settings app and t...

Page 22: ...up data from a computer Transfer data between your device and a computer You must download the Smart Switch computer version app from www samsung com smartswitch Back up data from your previous device...

Page 23: ...r pinch on the screen Do not allow the touchscreen to come into contact with other electrical devices Electrostatic discharges can cause the touchscreen to malfunction To avoid damaging the touchscree...

Page 24: ...me Tap to return to the Home screen Tap and hold to launch the Google Assistant app Back Tap to return to the previous screen Hiding the navigation bar View files or use apps on a wider screen by hidi...

Page 25: ...rds to open the Apps screen To return to the Home screen swipe upwards or downwards on the Apps screen Alternatively tap the Home button or the Back button Home screen Apps screen Finder Favourite app...

Page 26: ...me Visual elements of interface such as colours icons and wallpapers will change depending on the selected theme Widgets Widgets are small apps that launch specific app functions to provide informatio...

Page 27: ...cut to an app on the Home screen tap and hold an item on the Apps screen and then tap Add to Home A shortcut to the app will be added on the Home screen You can also move frequently used apps to the s...

Page 28: ...ed The folder s apps will be relocated to the Apps screen Edge panel You can quickly access your favourite apps and features from the Edge panels Drag the Edge panel handle towards the centre of the s...

Page 29: ...by preventing others from accessing your device After setting the screen lock method the device will require an unlock code whenever unlocking it You can set your device to perform a factory data res...

Page 30: ...on mode Flight mode activated Error occurred or caution required Battery charging Battery power level The status bar may not appear at the top of the screen in some apps To display the status bar drag...

Page 31: ...at the bottom of the screen Capture the current content and the hidden content on an elongated page such as a webpage When you tap the screen will automatically scroll down and more content will be c...

Page 32: ...e the following functions on the notification panel View the notification details and perform various actions Clear all notifications Launch Settings Access the notification settings Quick setting but...

Page 33: ...ing media playback Take control of music or video playback easily using the Media feature 1 Open the notification panel and tap Media 2 Tap the icons on the controller to control the playback Controll...

Page 34: ...he languages to use When you select two or more languages you can switch between the input languages by swiping to the left or right on the space key Changing the keyboard On the navigation bar tap to...

Page 35: ...text editing panel Change the keyboard mode Change the keyboard size Some features may not be available depending on the service provider or model Copying and pasting 1 Tap and hold over text 2 Drag...

Page 36: ...option Play Store Purchase and download apps Launch the Play Store app Browse apps by category or search for apps by keyword To change the auto update settings tap your account icon tap Settings Netw...

Page 37: ...ew or change app permission settings by permission category launch the Settings app and tap Apps Permission manager Select an item and select an app If you do not grant permissions to apps the basic f...

Page 38: ...l numbers 10 and up tap the first digit s of the number and then tap and hold the last digit For example if you set the number 123 as a speed dial number tap 1 tap 2 and then tap and hold 3 Making an...

Page 39: ...ers switch to activate the feature Options during calls Add call Dial a second call The first call will be put on hold When you end the second call the first call will be resumed Hold call Hold a call...

Page 40: ...hem from other storages to your device 1 Launch the Contacts app and tap Manage contacts Import or export contacts Import 2 Follow the on screen instructions to import contacts Syncing contacts with y...

Page 41: ...ap More Delete Sharing contacts You can share contacts with others by using various sharing options 1 Launch the Contacts app and tap Share contacts 2 Select contacts and tap Share 3 Select a sharing...

Page 42: ...to send the message Enter recipients Enter a message Enter stickers Attach files Recipient Send the message Viewing messages 1 Launch the Messages app and tap Conversations 2 On the messages list sel...

Page 43: ...r information and bookmark your favourite webpages to access them conveniently 1 Launch the Internet app 2 Enter the web address or a keyword and then tap Go To view the toolbars drag your finger down...

Page 44: ...videos of other people without their permission Do not take pictures or record videos where legally prohibited Do not take pictures or record videos in places where you may violate other people s priv...

Page 45: ...blurry clean the camera lens and try again Make sure that the lens is not damaged or contaminated Otherwise the device may not work properly in some modes that require high resolutions Your device s...

Page 46: ...methods and tap the Floating Shutter button switch to activate it Options for current shooting mode On the preview screen use the following options Activate or deactivate the flash Select the length o...

Page 47: ...e landscape or people tap 3 Tap to take a picture Applying filter and beauty effects You can select a filter effect and modify facial features such as your skin tone or face shape before taking a pict...

Page 48: ...ment bar to adjust the blur level 3 When Ready appears on the preview screen tap to take a picture Background blur adjustment bar Use this feature in a place that has sufficient light The background b...

Page 49: ...moving or poorly lit objects However higher ISO settings can result in noise in pictures Select an appropriate white balance so images have a true to life colour range You can set the colour temperat...

Page 50: ...oid taking pictures of indistinct backgrounds such as an empty sky or a plain wall Food mode Take pictures of food with more vibrant colours 1 On the shooting modes list tap MORE FOOD 2 Tap the screen...

Page 51: ...n the High Efficiency Image Format HEIF Selfies Use wide angle for group selfies Set the device to automatically switch to a wide angle selfie when there are more than two people in the frame Save sel...

Page 52: ...ad them to the Internet To avoid this deactivate the location tag setting Shooting methods Select additional shooting methods for taking a picture or recording a video Settings to keep Keep the last s...

Page 53: ...by album or create stories Using Gallery Launch the Gallery app Search for images Group similar images More options Grouping similar images Launch the Gallery app and tap to group similar images and d...

Page 54: ...right on the screen More options Delete the image Share the image with others Modify the image Add the image to favourites Cropping enlarged images 1 Launch the Gallery app and select an image 2 Sprea...

Page 55: ...next video Tap and hold to fast forward Pause and resume playback Change the screen ratio Configure the caption settings Drag your finger up or down on the left side of the playback screen to adjust t...

Page 56: ...eos select a story and tap Add or Edit Deleting images or videos Launch the Gallery app tap and hold an image a video or a story to delete and then tap Delete Using the recycle bin feature You can kee...

Page 57: ...un multiple apps at the same time in the pop up view Split screen view Pop up view Some apps may not support this feature Split screen view 1 Tap the Recents button to open the list of recently used a...

Page 58: ...together in the split screen view with a single tap 1 In the split screen view tap the circles between the app windows 2 Tap The two apps you are using in the split screen view will be saved on the E...

Page 59: ...to a new location Samsung Notes Create notes by entering text from the keyboard or by handwriting or drawing on the screen You can also insert images or voice recordings into your notes Creating notes...

Page 60: ...Galaxy Shop app Calendar Manage your schedule by entering upcoming events in your planner Creating events 1 Launch the Calendar app and tap or double tap a date If the date already has saved events or...

Page 61: ...on will be added to the Apps screen Creating reminders 1 Launch the Reminder app 2 Tap enter the details and then tap Save Completing reminders On the reminders list tap or select a reminder and tap C...

Page 62: ...to insert a bookmark 3 Tap to finish recording 4 Enter a file name and tap Save My Files Access and manage various files stored in the device Launch the My Files app To check for unnecessary data and...

Page 63: ...Settings app tap Advanced features and then tap the Game Launcher switch to activate it Games downloaded from Play Store and Galaxy Store will be automatically shown on the Game Launcher screen If you...

Page 64: ...rate to prevent the device from overheating and to stop apps from running in the background when there is not enough memory Navigation button lock Hide the buttons on the navigation bar To display the...

Page 65: ...ct an image 2 On the other device open the notification panel swipe downwards and then tap Quick Share to activate it 3 Tap Quick Share and select a device to transfer the image to 4 Accept the file t...

Page 66: ...l Send or receive emails via the Google Mail service Maps Find your location on the map search the world map and view location information for various places around you YT Music Enjoy various music an...

Page 67: ...ctions Wi Fi Activate theWi Fi feature to connect to aWi Fi network and access the Internet or other network devices Refer toWi Fi for more information Bluetooth Use Bluetooth to exchange data or medi...

Page 68: ...to prevent some apps running in the background from sending or receiving data Refer to Data saver for more information You can also select apps to always use the mobile data even when your device is c...

Page 69: ...p next to the network and tap the Auto reconnect switch to deactivate it If you cannot connect to aWi Fi network properly restart your device sWi Fi feature or the wireless router Wi Fi Direct Wi Fi D...

Page 70: ...illegally tapping communications for commercial purposes Samsung is not responsible for the repercussion of illegal use of the Bluetooth feature Pairing with other Bluetooth devices 1 On the Settings...

Page 71: ...Your device allows you to read near field communication NFC tags that contain information about products You can also use this feature to make payments and buy tickets for transportation or events af...

Page 72: ...payment app open the Settings screen and tap Connections NFC and contactless payments Contactless payments Payment and then select an app The payment services list may not include all available paymen...

Page 73: ...s a mobile hotspot to share your device s mobile data connection with other devices 1 On the Settings screen tap Connections Mobile Hotspot andTethering Mobile Hotspot 2 Tap the switch to activate it...

Page 74: ...figure network settings Printing Configure settings for printer plug ins installed on the device You can connect the device to a printer viaWi Fi orWi Fi Direct and print images or documents Some prin...

Page 75: ...ice s volume level Call vibration pattern Change the call vibration pattern Notification vibration pattern Change the notification vibration pattern Vibration intensity Adjust the force of the vibrati...

Page 76: ...cific music genre and enjoy optimised sound Adapt sound Set the best sound for you Depending on the model you must connect an earphone to use some features Separate app sound Set the device to play me...

Page 77: ...deactivate dark mode Dark mode settings Reduce eye strain by applying the dark theme when using the device at night or in a dark place You can set a schedule for applying dark mode The dark theme may...

Page 78: ...ging Some features may not be available depending on the model Wallpaper Change the wallpaper settings for the Home screen and the locked screen On the Settings screen tap Wallpaper Themes Apply vario...

Page 79: ...show contact information such as your email address on the locked screen Notifications Set how to show notifications on the locked screen Shortcuts Select apps to display shortcuts to them on the lock...

Page 80: ...check for updates Google Play system update View the Google Play system version and check for updates Find My Mobile Activate or deactivate the Find My Mobile feature Access the Find My Mobile website...

Page 81: ...using face recognition Before using the face recognition to unlock your device keep the following precautions in mind Your device could be unlocked by someone or something that looks like your image...

Page 82: ...ord 1 On the Settings screen tap Biometrics and security Face recognition 2 Unlock the screen using the preset screen lock method 3 Tap the Face unlock switch to activate it 4 On the locked screen loo...

Page 83: ...d to unlock the screen for the first time after turning on the device To use the device you must unlock the screen using the pattern PIN or password you set when registering the fingerprint Be careful...

Page 84: ...metal objects such as coins keys and necklaces Covering the fingerprint recognition sensor with protective films stickers or other accessories may decrease the fingerprint recognition rate If the fin...

Page 85: ...3 Set a screen lock method 4 Place your finger on the Side key After the device detects your finger lift it up and place it on the Side key again Repeat this action until the fingerprint is registere...

Page 86: ...ints You can delete registered fingerprints 1 On the Settings screen tap Biometrics and security Fingerprints 2 Unlock the screen using the preset screen lock method 3 Select a fingerprint to delete a...

Page 87: ...n services View the location services your device is using Google Configure settings for some features provided by Google On the Settings screen tap Google Accounts and backup Options Sync back up or...

Page 88: ...ung Cloud and restore it later Backing up data You can back up your device s data to Samsung Cloud 1 On the Settings screen tap Accounts and backup and tap Back up data under Samsung Cloud 2 Tick item...

Page 89: ...otions and gestures for more information One handed mode Activate one handed operation mode for your convenience when using the device with one hand Screenshots Change the settings for screenshots Sho...

Page 90: ...not work if the screen is turned on or the device is not on a flat surface Turn over to mute Set the device to mute certain sounds by using motions or gestures Finger sensor gestures Set the device t...

Page 91: ...al controls for your children and manage their digital use On the Settings screen tap DigitalWellbeing and parental controls Screen time Set goals for how much you use your device a day App timers Lim...

Page 92: ...not in use Tap Automation Auto optimise daily and tap the switch to activate it If you want to set the time to perform auto optimisation tap Time Battery Check the remaining battery power and time to...

Page 93: ...To speed up your device by stopping apps running in the background tick apps from the apps list and tap Clean now Device protection Check the device s security status This feature scans your device f...

Page 94: ...s used when TalkBack is activated such as languages speed and more Date and time Access and alter the settings to control how the device displays the time and date If the battery remains fully dischar...

Page 95: ...gure various settings to improve accessibility to the device On the Settings screen tap Accessibility Recommended for you Check the accessibility features you are currently using and see other recomme...

Page 96: ...update If emergency software updates are released for your device s security and to block new types of security threats they will be installed automatically without your agreement Security updates inf...

Page 97: ...rmation such as the SIM card status Wi Fi MAC address and serial number Legal information View legal information related to the device such as safety information and the open source licence Software i...

Page 98: ...ture by using the Lock SIM card menu PUK Your SIM or USIM card is blocked usually as a result of entering your PIN incorrectly several times You must enter the PUK supplied by your service provider PI...

Page 99: ...tions If the problem is still not resolved contact a Samsung Service Centre Restarting the device If your device freezes or hangs you may need to close apps or turn off the device and turn it on again...

Page 100: ...nectivity problems due to issues with the service provider s base station Move to another area and try again When using the device while moving wireless network services may be disabled due to issues...

Page 101: ...files If you receive error messages or multimedia files do not play when you open them on your device try the following Free some memory by transferring files to a computer or deleting files from you...

Page 102: ...ion when performing the reset If the tips above do not solve the problem contact a Samsung Service Centre The screen brightness adjustment bar does not appear on the notification panel Open the notifi...

Page 103: ...p storage space The Home button does not appear The navigation bar containing the Home button may disappear while using certain apps or features To view the navigation bar drag upwards from the bottom...

Page 104: ...on storage and retrieval system Trademarks SAMSUNG and the SAMSUNG logo are registered trademarks of Samsung Electronics Co Ltd Bluetooth is a registered trademark of Bluetooth SIG Inc worldwide Wi Fi...

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