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Samsung

Guides for Samsung Galaxy A03

532 guides

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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Storage & Backup2

Clear App Cache

If an app freezes, crashes on launch, or shows outdated information right after an update, leftover cache files are usually the reason. Samsung apps store temporary data to load faster, but that data can go stale or corrupted over time. Clearing the cache removes this junk without touching your logins, settings, or saved files.

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Language & Input2

Turn Swipe Typing On or Off on the Keyboard

If dragging your finger across the letters does nothing, or the keyboard keeps guessing the wrong word while you glide between keys, the built-in gesture typing might be switched off or set to the wrong mode. Samsung labels this feature keyboard swipe control, while most other Android keyboards call the same trick glide typing or swipe typing. Getting the setting right decides whether the keyboard reacts to continuous finger movement at all.

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System & Settings2

Check for Software Updates

If your Samsung phone still shows the old software version, the automatic background check may not have run yet. Update search only happens at set intervals, so a released patch can sit unnoticed for hours or longer. Triggering a manual check tells you right away whether a new version is actually available.

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System & Settings2

Turn JavaScript On or Off in Samsung Internet

If buttons, menus, or forms suddenly stop reacting on a website in Samsung Internet, JavaScript has often been switched off. Some pages refuse to load content at all without it, since most modern sites rely on the scripting language for interactive elements. The toggle for this sits buried inside the browser's site permissions and is easy to overlook.

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Calls & Messages2

Manage Calendar Colors

When several accounts sync into the Samsung Calendar app, every entry can end up in the same shade, making it hard to tell a work meeting from a personal appointment or a public holiday at a glance. This happens because each account keeps its default color until you assign a new one manually. The mix-up gets worse the more calendars you connect to your phone.

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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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Network & Connectivity2

Turn Wi-Fi Calling On or Off

If calls keep dropping in areas with weak mobile signal but strong Wi-Fi, your Samsung phone probably has Wi-Fi Calling turned off. This feature lets the device route voice calls over a wireless network instead of the regular cellular connection. Whether it needs to be on or off depends on your carrier and where you spend most of your time on a call.

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Calls & Messages2

Edit a Contact Group

A contact group on your Samsung phone rarely stays useful forever. Team members change, a birthday club grows, and the group ringtone you picked months ago no longer matches the rest of your alerts. Renaming the group, swapping members, or changing its sound is not obvious if you have never opened the group settings before.

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Display & Home Screen2

Show or Hide Secure Folder Icon on Home Screen

If the Secure Folder icon vanished from your Home screen or Apps screen, you probably switched off a display toggle rather than deleted anything. While the icon is hidden, you cannot tap it open, and the only way back is through the folder's own settings. You will need your Secure Folder password, PIN, or pattern to get there.

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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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System & Settings2

Factory Reset: Settings Guide

If your Samsung phone freezes, lags after a system update, or you are handing it over to someone else, a factory reset wipes the entire internal storage. Every app gets uninstalled and every linked account, including your Samsung account, is removed from the device. Once the reset finishes, none of that data can be recovered unless you saved a backup beforehand.

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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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Storage & Backup

Restore a Local Backup

If your Samsung phone still shows old photos, contacts or settings after a factory reset, the backup saved to your memory card, USB stick or external drive was never applied. Local backups live outside your Samsung account, so the system will not pull them in automatically. You need to trigger the restore manually through the storage transfer settings, and this works on any Samsung device, not only the one that created the backup.

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Display & Home Screen2

Change Home Screen Grid Size

If icons on your Samsung home screen look too large or too small, or too few apps fit per row, the Home screen grid setting is likely still on its default layout. Switching between 4x5, 4x6, 5x5, and 5x6 changes how many app shortcuts appear per screen and how big each icon renders. This also affects spacing on the app screen, not just the home screen.

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System & Settings2

Show or Hide Weather in World Clock

If every city in your Samsung World Clock list shows a small weather icon next to the time, that extra data can make a long list feel cluttered fast. The weather display comes from the same location data used for the time difference, and it applies to all saved cities at once, not just one. You can turn this display on or off without deleting any of the clocks you already added.

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System & Settings2

Clear Browsing History in Samsung Internet

If Samsung Internet keeps suggesting old searches or autofilling addresses you would rather forget, your browsing history is probably still full. The browser stores every visited page except the ones opened in secret mode, and that list keeps growing until you clear it manually. You can remove a single entry or wipe the entire history at once.

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Security & Privacy2

Toggle Screen Brighten for Face Recognition

Unlocking your Samsung phone with your face in a dark room briefly floods the display with light, and that flash can be distracting or draw attention at night. This behavior comes from the Brighten screen option tied to Face recognition, and it works independently from your normal screen brightness settings.

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Calls & Messages2

Send a Text Message (SMS/MMS)

Your text keeps splitting into multiple parts or a photo won't attach when you try to send a quick message on your Samsung phone. Both issues come down to how the Messages app switches between SMS and MMS depending on content and length. Knowing which mode is active helps you avoid extra charges and failed sends.

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Calls & Messages2

Read Caller Names Aloud On/Off

When your phone stays silent on incoming calls instead of announcing who is calling, the Read caller names aloud option is probably turned off or set up the wrong way. This feature runs on text-to-speech, so the speed and pitch of the announcement depend on your voice output settings as well. Some users want it disabled instead, because it interrupts music or reads out numbers that are not saved as contacts.

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Photo, Video & Media2

Change Screenshot File Format

By default, every screenshot on your Samsung phone gets saved as a JPG, which compresses the image and can slightly soften text or fine details. If you need sharper captures for documents, UI comparisons, or editing work, JPG's lossy compression becomes a real limitation. Switching the format to PNG keeps every pixel intact at the cost of a slightly larger file size.

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Security & Privacy2

Encrypt or Decrypt SD Card

If your Samsung phone gets lost or stolen, anyone can pull the SD card and read the photos or app data stored on it. Samsung lets you tie the card to your device with encryption so it becomes unreadable in any other phone or card reader. This only works reliably if you set a screen lock first, since the encryption is unlocked using your Pattern, PIN, or Password.

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Calls & Messages2

Turn On/Off Accidental Touch Protection

If your Samsung phone wakes up in your pocket or bag and taps random apps or dials contacts, the screen is registering touches it should ignore. This usually happens when the display turns on in a dark or enclosed space and the accidental touch protection feature is off or misconfigured. The result can be missed calls, sent messages, or apps opened without your knowledge.

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