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Samsung

Guides for Samsung Galaxy A03 Core

532 guides

Network & Connectivity2

Share Wi-Fi Password via QR Code

Typing out a long Wi-Fi password for guests or family members gets old fast, especially with mixed-case letters and symbols. Samsung phones store the network credentials internally, so you can turn that saved password into a scannable QR code instead of reading it out loud. Anyone with a QR code scanner just points their camera at the screen and connects automatically.

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Calls & Messages2

Add Members to a Contact Group

Adding a new contact to an existing group is not obvious in Samsung Contacts, since the group screen looks read-only until you switch into edit mode. Miss that step and the new contact stays outside the group, so it never receives group messages or shows up for group calls. This mainly trips people up when they add contacts after a group already exists.

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System & Settings2

Change Default Browser App

If every link you tap opens in Samsung Internet instead of Chrome, Firefox, or whatever browser you actually prefer, your phone is still using Samsung Internet as the system default. This happens even after you install a new browser, because Samsung keeps the original default active until you switch it yourself. Once you know where that setting lives, moving to another browser only takes a few taps.

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Notifications & Focus2

Allow Repeat Callers in Do Not Disturb

When Do Not Disturb is on, your Samsung phone silences every incoming call, even from someone trying to reach you urgently. The Repeat callers exception is meant to let a second call from the same number through within 15 minutes, but many users find it either missing or not working as expected. Knowing where this setting lives helps you decide when silence is too strict.

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Apps & Installation2

Allow or Block Display Over Other Apps

When a chat bubble or floating icon from an app like Facebook Messenger keeps covering your screen no matter what you open, that app has permission to draw over other apps. Some tools need this to work, like screen recorders or floating widgets, but many apps request it without a clear reason. If the overlay gets in the way or feels like a privacy risk, you can turn it off per app.

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Display & Home Screen2

Remove a Folder from the Home Screen

A folder full of apps keeps taking up space on your home screen even after you have moved the apps out of it. On Samsung phones, folders behave like ordinary app icons, which confuses users looking for a delete option in a settings menu.

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Display & Home Screen2

Remove Google Search Bar from Home Screen

If the Google search bar keeps taking up space on your Samsung home screen even though you never use it, it is because the widget is preinstalled and pinned by default. It sits there for quick searches or Google Assistant access, but many people just want a cleaner layout with fewer widgets in the way.

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Notifications & Focus2

Custom Notification Sound per App

On Samsung phones every app can technically get its own notification sound, but only if that app requests separate notification categories from the system. Apps that bundle everything into one generic channel keep the sound picker greyed out no matter what you try. That leaves you guessing whether a buzz is a message, a reaction, or a system alert.

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Other2

Number Row on Samsung Keyboard

If your Samsung keyboard suddenly shows a full row of digits above the letters, or that row is missing and you have to tap and hold a letter until a popup with the number appears, the number row layout has been switched. This setting decides whether typing numbers takes one tap or a tap-and-hold, and it changes how much space the keyboard takes up on screen.

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Security & Privacy2

Turn On/Off Widgets on Lock Screen

If the music player, next alarm, or calendar no longer shows up on your Samsung lock screen, the Widgets option is likely switched off. Some people want the opposite and disable widgets entirely, since alarms, app info, or playback controls can be visible without unlocking the device. Both directions are controlled from the same lock screen setting.

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Other2

Search for a Word in a Message Conversation

Scrolling through a long text thread to find one phone number, address or name wastes time. Samsung's Messages app has a hidden search function inside each conversation that jumps straight to matching text. Matches get a white highlight and arrow controls let you step through every result without leaving the chat.

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Security & Privacy2

Add a Fingerprint on Samsung

Trying to unlock your Samsung phone with your fingerprint but the option in Settings stays greyed out? Samsung always requires a backup PIN, password, or pattern before the Fingerprints menu becomes available. Without that secondary lock set first, you cannot enrol a new fingerprint at all.

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Security & Privacy2

Turn Speak Passwords On or Off in TalkBack

TalkBack normally reads every letter you type aloud, but password fields are treated differently and stay silent by default. If you want TalkBack to announce password characters too, that behavior is hidden behind a separate switch in the TalkBack settings.

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Apps & Installation2

Find Apps and Files with Samsung Finder Search

Scrolling through folders on the home screen or app drawer to find one app can take longer than just typing its name. When Finder search is not your default habit, you end up swiping through pages instead of getting instant results, including files stored in your phone's memory and not only installed apps.

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Battery & Power2

Turn Power Saving Mode On or Off

When your Samsung battery drains faster than usual, Power saving mode limits background data use and blocks location lookups for apps you are not actively using, while stretching what charge is left. Depending on the model, it can also turn off Always On Display and lower CPU speed, so screen behavior and app performance change until you switch the mode back off.

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Other2

Enlarge the Mouse Pointer

Once you connect a mouse or touchpad to your Samsung device, the on-screen pointer often stays tiny and hard to track, especially on larger displays. This gets worse if you also use a stylus or have reduced vision, since the default pointer size was built for touch input, not precise cursor tracking.

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Security & Privacy2

Change Auto-lock Time

If your Samsung phone locks the instant the screen turns off, you lose the short grace period that normally lets you wake it back up without re-entering your PIN or pattern. This behavior is controlled by a delay setting inside the lock screen security options that starts counting down the moment the display goes dark. Adjusting that delay changes how long the phone stays unlocked before it demands your credentials again.

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Security & Privacy2

Remove Face Recognition Data

If facial unlock keeps failing or you no longer want your phone to recognize your face, the stored face data is still sitting in Biometrics and security. Beard changes, glasses, or a general preference for PIN unlock can make this scan outdated. Removing it disables Face Unlock until you set it up again.

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Other2

Auto-Punctuate on Double Space Tap

Double-tapping the space bar on a Samsung keyboard sometimes adds a period automatically, sometimes it doesn't, and that inconsistency throws off your typing rhythm. This behavior depends on a keyboard setting called 'Double tap space bar to add period', which is turned off by default. Whether the shortcut works for you or not, this one setting is the reason.

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Network & Connectivity2

Forget a Saved Wi-Fi Network

If your Samsung phone keeps trying to reconnect to a Wi-Fi network you no longer use, an old saved profile is still stored on the device. This forces constant background scanning for that network and can slow down how quickly your phone switches to a stronger signal nearby. Removing the outdated entry stops the automatic search for good.

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Other2

Change the Default Homepage in Samsung Internet

Samsung Internet opens with Quick access by default, a screen full of shortcuts to sites like Google, eBay or Tchibo instead of the page you actually want to see. You can switch to a personalized start view, the most-visited sites list, or a fixed web address of your choice. The option sits inside the browser menu and is easy to overlook the first time you look for it.

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Calls & Messages2

Add a New Contact

Typing a number straight into the dialer only leaves it in your call log, not in your address book. If you clear that history or set up a new phone, the number is gone for good. The Samsung Contacts app is the only place that permanently stores a name together with a phone number and any extra details you add.

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Other2

Edit and Reorder Edge Panel Contacts

If your Edge panel still shows outdated contacts or apps you never open, the panel content does not update on its own and needs manual editing. Positions also stay fixed until you rearrange them yourself, which often buries your most-used contacts at the bottom of the list.

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Display & Home Screen2

Customize Secure Folder Name and Icon

If your Secure Folder still carries its default label and icon, anyone glancing at your app list can spot exactly what it hides. Samsung lets you rename it and swap the icon for something less obvious, but the icon options are limited to presets and the initial letter of your chosen name. You cannot upload a custom image as the icon.

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