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Samsung

Guides for Samsung Galaxy M31 Prime

532 guides

Photo, Video & Media2

Reset Camera Settings

If your Samsung camera keeps producing odd results after tweaking resolution, filters, grid lines or shooting modes, restoring the default configuration usually clears the mess fastest. Custom settings like exposure values, watermark options or scene assist can silently stack up and cause blurry, oversaturated or oddly cropped shots. Resetting the camera app wipes every custom option but leaves photos and videos you already captured untouched.

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Network & Connectivity2

Turn USB Tethering On or Off

If your laptop or PC does not pick up an internet connection after you plug in your Samsung phone, USB tethering is probably still switched off. This feature routes your mobile data through the USB cable instead of Wi-Fi, which helps when public Wi-Fi is blocked, slow, or unavailable. Without the toggle enabled, the computer detects the cable but never actually goes online.

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Security & Privacy2

Set Up Fingerprint Unlock

If your Samsung phone only wakes up with a pattern, PIN, or password, the fingerprint sensor sits unused even though it can unlock the device just as reliably. This usually happens because Fingerprints was never switched on in the lock screen settings, even after a fingerprint got registered. Without that toggle enabled, every unlock still needs the full pattern or code, no matter how many fingerprints are stored.

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Calls & Messages2

Export Contacts as vCard

Switching to a new phone or backing up your contact list only works if you can get every saved entry out of the Contacts app in one file. Without exporting first, you are left copying numbers one by one. Samsung phones can bundle everything into a single vCard file that other devices, apps and services can read.

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Other2

Turn Custom Watermark On or Off

Photos taken with your Samsung camera carry no signature or text, even though a custom watermark would help identify your shots. The built-in watermark stamps text into the lower left corner of every photo, but its position is fixed and the small camera icon next to it can't be removed. That limits how much you can customize the look before it gets applied.

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Display & Home Screen2

Home Screen Landscape Mode

Turning your Samsung phone sideways usually rotates apps, but the home screen itself often stays locked in portrait. That happens because the general 'Rotate to landscape mode' toggle only affects certain screens, not the home screen grid. A separate setting controls whether your app icons and widgets actually follow the rotation.

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Calls & Messages2

Block or Unblock a Contact

If one saved contact keeps calling or texting after you have asked them to stop, blocking is the only way to silence both channels at once. The tricky part is that a blocked contact stays visible in your contact list and cannot be hidden, which surprises many users. If you want to stop a number without ever saving it as a contact, a separate blocking method covers that case with the same effect.

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Notifications & Focus2

Change Call Vibration Pattern

If every incoming call feels like the same long buzz, your Samsung phone is still set to the standard call vibration. One UI actually ships with several distinct patterns, including a heartbeat, a knocking rhythm and a waltz-style pulse, but most people never notice the option exists. Picking a different pattern helps you tell calls apart from notifications by feel alone, without looking at the screen.

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Display & Home Screen2

Turn Screen Rotation On or Off

If your Samsung screen stays locked in portrait mode even when you turn the device sideways, the Auto rotate function is switched off. The opposite problem also happens: the display keeps flipping between portrait and landscape when you just want it to stay put. Both behaviors come down to a single quick setting that controls whether the screen follows the physical orientation of the phone.

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Calls & Messages2

Show or Hide Declined Events in Calendar

If a meeting you declined still disappears from your calendar view instead of showing as declined, the Samsung Calendar app is hiding it on purpose. This happens because the 'Hide declined events' option is turned on by default, which removes any event you rejected from the schedule entirely. Once you know where that switch lives, you can bring those events back into view whenever you need a full record of your invitations.

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Accessibility2

Turn On/Off Color Correction

If reds and greens blend together on your Samsung screen, or blue tones look washed out, reading charts, icons and notifications gets harder. This is usually not a display defect but an unadjusted color vision setting. Samsung includes filters for different types of color blindness, but they only help once enabled and matched to the right type.

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Security & Privacy2

Turn On/Off Faster Face Recognition

If your Samsung phone unlocks even when someone holds up a photo or video of your face, the Faster recognition option is likely turned on. This setting speeds up face unlock but skips some of the depth checks that normally block spoofing attempts. Turning it off makes recognition a touch slower but much harder to trick.

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Network & Connectivity2

Share Internet via Bluetooth Tethering

If a paired Bluetooth device cannot get online through your Samsung phone, Bluetooth tethering is likely still switched off. Pairing alone does not grant internet access - you need to enable that separately for the connected device. Without this step the connection stays limited to file transfer and audio, with no data passthrough.

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Security & Privacy2

Show or Hide Lock Screen Pattern Trail

If you swipe a pattern to unlock your Samsung phone, the line you draw stays visible on screen the whole time, which means anyone glancing over your shoulder can trace it. This visible trail is a separate setting from the pattern itself and can be switched off for more privacy. Nothing about your actual pattern shape or length changes when you hide the line.

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Language & Input2

Add a Keyboard Language

Your Samsung keyboard only offers the system language by default, so a German-language phone types German everywhere, even in messages you want to write in English or another language. Switching between alphabets or typing foreign words forces constant autocorrect fights. The fix sits in the Samsung Keyboard settings, but the option to add extra input languages is buried several menus deep and easy to miss.

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Photo, Video & Media2

Allow or Deny Picture-in-Picture Access

If a video keeps playing in a floating window even after you close the app, or that floating window never shows up at all, the picture-in-picture permission for the app is set the wrong way. Samsung manages this per app, separate from the general multitasking settings, so one app can float freely while another stays blocked. Checking this permission clears up both problems in a few taps.

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Network & Connectivity2

Switch to Mobile Data Automatically

When your Wi-Fi signal turns weak or drops out, apps can freeze or fail to load even though the Wi-Fi icon still shows full bars. Samsung phones include a 'Switch to mobile data' option that hands the connection over to your cellular network once Wi-Fi quality drops too low. Without it enabled, your phone keeps trying to use a bad Wi-Fi signal instead of switching over on its own.

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Language & Input2

Enable or Disable Google Voice Typing

If the microphone icon is missing from your Samsung keyboard, Google voice typing is probably switched off in the keyboard settings. This feature turns spoken words into text while you type, but only works once it is active under Language and input. You can switch it on or off at any point without changing your default keyboard app.

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Notifications & Focus2

Change Timer Sound

If the timer on your Samsung phone always plays the same tone, no matter which alarm or reminder you set, the Clock app is likely still using its default Timer sound. You can swap it for another preset tone or a custom sound file, but the option sits inside a separate sound menu that many people never open.

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Storage & Backup2

Create a Local Backup to SD Card

If your Samsung phone has no internet connection or you would rather skip Samsung Cloud and Google entirely, a local backup on the SD card or internal storage fills that gap. It runs on the External storage transfer function, which shares its engine with Smart Switch, so the file can later restore straight onto another Samsung device. This is worth doing before a factory reset, a SIM swap, or whenever cloud storage is full.

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Calls & Messages2

Change SMS Input Mode (GSM or Unicode)

If a single text turns into two or three messages the moment you add an emoji, the input mode set for text messages is the reason. GSM alphabet only covers basic Latin characters, so any emoji or special symbol forces the message to switch encoding and split. Automatic or Unicode mode prevents that, but it can affect how many messages you get billed for.

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Photo, Video & Media2

Quick Launch Camera via Side Key

Double-pressing the Side key should open the Camera app straight from the lock screen, but on some Samsung phones nothing happens or a different app launches instead. This shortcut lives in the Side key settings and often gets reset after a software update or a factory reset. A short check in Advanced features usually brings it back.

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Other2

Add or Remove Edge Panels

The Edge panel on your Samsung phone comes with a handful of panels active out of the box, but not every panel you might want is enabled - and you might be stuck with ones you never touch, like the calendar or direct dial panel. Extra panels, including a calculator panel, are available for free through the Galaxy Store but stay invisible until you select them in the panel list. Swiping in from the edge and seeing the wrong panels, or too few of them, usually just means the panel selection needs an update.

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Network & Connectivity2

Turn Dark Mode On or Off in Samsung Internet

If Samsung Internet still opens in a bright white layout even though your phone runs a dark theme, the browser has its own separate dark mode toggle. Some users only find a system-wide switch and assume the browser has no dark option at all, while others get a dark browser frame but pages still render bright. The setting sits inside the browser app itself, not in the general display settings.

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