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Samsung

Guides for Samsung Galaxy A03 Core

532 guides

Network & Connectivity2

Set Up a Proxy Server for Wi-Fi

If your workplace or school network requires all traffic to pass through a specific server, a normal Wi-Fi connection on your Samsung phone will not get you online. Without the correct proxy host and port entered in the Wi-Fi settings, apps and browsers simply time out or show a connection error. This setup only affects the Wi-Fi network you configure it on, not mobile data.

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Calls & Messages2

Remove a Speed Dial Number

An old contact still sits on a speed dial slot even though you deleted the number ages ago, or you just want to free up a slot for someone else. Speed dial entries do not always clear themselves right away, and the list can get cluttered fast if you never open the assignment screen.

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Language & Input2

Turn Predictive Text On or Off

Predictive text on the Samsung keyboard suggests words as you type, based on your past entries. If suggestions feel outdated, oddly personal, or simply distracting while you type, the keyboard's learning behavior is usually the cause. Turning predictive text off stops new suggestions and keeps the keyboard from adapting further to your typing history.

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Apps & Installation2

Remove Apps from a Folder

Dragging one app at a time out of a crowded folder gets tedious fast, especially when a folder holds ten or more icons. Samsung's One UI does not offer a way to select several apps at once and pull them all out together. If you are trying to clean up a folder quickly, this one-by-one limitation slows the process down noticeably.

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Network & Connectivity

Lock Network and Security Setting

If your Samsung phone drops its Wi-Fi or mobile data connection every time the screen locks, Find My Mobile can lose track of the device the moment it goes missing. The Lock network and security option controls exactly this behavior and keeps the connection alive while the screen is off. Without it enabled, locating or remotely controlling a lost phone becomes much harder.

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Notifications & Focus2

Use Volume Keys for Media Volume

Pressing the volume keys on a Samsung phone usually changes the ringtone volume, even while a video or song is playing. That happens because Samsung's One UI ties the physical buttons to the ringer channel by default, leaving media playback at whatever level it was last set to. A dedicated toggle changes this behavior so the same keys adjust media volume directly.

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Language & Input

Turn Keyboard Character Preview On or Off

Every tap on the Samsung keyboard pops up an enlarged copy of the key you just pressed. That preview bubble can slow you down when typing fast or block the line above on smaller screens, and it is tied to a single setting inside the keyboard's touch feedback options.

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Security & Privacy2

Add Trusted Places for Smart Lock

Typing your PIN every time you walk through the front door or reach your desk at work gets tiring fast. Smart Lock's Trusted places feature can skip the lock screen at locations you use often, but the unlock zone is based on estimated location rather than an exact address. That's why the phone sometimes stays unlocked a bit outside your home or starts locking again before you're actually inside.

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Notifications & Focus2

Turn Pop-up Notifications On or Off for an App

If a Samsung app keeps flashing a banner across your screen every time a message or alert comes in, that's a pop-up notification, and it can get distracting fast. Some apps switch this on by default, others leave it off, and the setting lives separately inside each app rather than in one global switch. Fixing it means finding the right notification category for that specific app.

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Calls & Messages

Restore Deleted Messages from Trash

If a text message disappears from the Samsung Messages app, it usually is not gone for good. Samsung keeps deleted messages in a Trash folder for a set period before permanent removal, and you can bring them back during that window.

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Notifications & Focus

Turn Touch Interaction Vibration On or Off

Every tap on your Samsung display triggers a short buzz, and that constant vibration feedback can feel distracting or drain battery faster than expected. This haptic response is separate from ringtone and notification vibrations, so switching those off does not stop it. The setting lives inside the sound and vibration controls and is easy to miss.

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Notifications & Focus2

Change Timer Volume

The timer alarm on Samsung phones ignores the physical volume buttons and the usual sound settings, because it runs through its own separate slider. Users often turn up media or ringtone volume expecting the timer to get louder, but the timer stays at whatever level was last set inside the Clock app itself.

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Photo, Video & Media2

Delete an Album in the Gallery App

Deleting an album in the Gallery app on your Samsung phone removes the album and every photo or video inside it from the device, not just the album name. If Trash is not turned on, that content is gone for good with no recovery option. System albums like Camera cannot be removed this way.

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Calls & Messages2

Install Dual Messenger Apps

Switching between two WhatsApp or Facebook accounts on one phone usually means logging out and back in every time, which gets tedious fast on a dual-SIM device. Samsung's One UI includes a built-in function that installs a second, independent copy of supported messenger apps so both accounts stay logged in at once. Not every messenger app on your phone supports this, which is why the option sometimes seems to be missing.

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Display & Home Screen2

Remove a Theme

Unused designs from the Galaxy Store keep taking up storage even when you never open them again. Some themes only need a few MB, but several installed at once add up fast on devices with limited space. Removing the ones you no longer use frees up memory without losing access to them for good.

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Network & Connectivity2

Wi-Fi Auto Reconnect Toggle

If your Samsung phone keeps rejoining a Wi-Fi network you deliberately left, or refuses to reconnect to a saved network on its own, the Auto reconnect setting is the reason. This option decides whether the device automatically re-establishes a connection to networks it has used before. When it is turned off, you have to tap the network manually every time it comes back into range.

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Other2

Turn On/Off Palm Swipe to Capture

If swiping the edge of your hand across the screen does not trigger a screenshot, or if it fires by accident while you grip the phone, the Palm swipe to capture gesture is set the wrong way. This motion feature sits in the gesture settings and can be missed easily since it is off by default on some devices.

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Other2

Turn Edge Panels On or Off

On many Samsung phones a thin bar sits along the right or left screen edge and slides open into a panel whenever you drag it inward. This comes from the Edge panels feature, which ships active by default and can get in the way during games or one-handed use. If you never open the panels, the handle itself still stays visible and reacts to touches near the border.

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Notifications & Focus

Turn Navigation Gesture Vibrations On or Off

Every tap on the navigation bar buttons triggers a short buzz on your Samsung phone, and that constant vibration gets annoying fast if you swipe through apps often. The feedback comes from a separate haptic setting for navigation gestures, not the general vibration toggle, so switching off standard notification vibration does not stop it. You need the dedicated system control instead.

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Notifications & Focus2

Turn Keyboard Sounds On or Off

Every tap on the Samsung keyboard triggers a click sound that can get annoying, especially in quiet rooms or during calls. This tone runs independently from your ringtone, notification and media volume, so lowering those won't silence it. Two separate settings areas manage the keypad tone, and mixing them up is the usual reason one toggle does not seem to work.

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Security & Privacy2

Manage App Permissions via Permission Manager

When you install a new app on your Samsung phone, it starts with no access to your camera, microphone, storage or location. Only once you open the app or trigger a specific feature for the first time does a permission prompt appear on screen. If you tapped Deny by accident or want to review which apps can read your contacts, gallery or location, you need Permission manager to check and change each permission individually.

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Apps & Installation2

Restore Default App Icons

Once you've applied a custom icon pack on your Samsung phone, there's no toggle in the app settings or launcher menu to bring icons back to their original look. The only place that reset lives is inside the Themes app, which most people never open again after installing a theme or icon set.

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Calls & Messages2

Sync Calendar Manually

If you close the Calendar app and it keeps running in the background, new appointments and logged calls on your Samsung phone often don't show up until you restart the app. Data saving mode, battery saving mode, and background restrictions in Samsung One UI can all block the automatic sync. Forcing a manual sync brings the calendar up to date without waiting for the next automatic refresh.

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Battery & Power2

Turn Adaptive Battery On or Off

If notifications from an app you rarely open arrive late or not at all, Adaptive battery is probably holding that app in a deeper sleep state in the background. The feature only limits background activity for apps you barely use and leaves apps you open daily untouched. It has no effect on screen brightness or overall device performance, so switching it off will not speed up your phone.

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