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Samsung

Guides for Samsung Galaxy J2 Core (2020)

520 guides

Network & Connectivity2

Turn Bluetooth Tethering On or Off

If your tablet, laptop, or smartwatch can't get online through your phone's Bluetooth connection, Bluetooth tethering is probably switched off. This feature turns your phone into a small Bluetooth hotspot and shares its mobile data with every paired device automatically.

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Notifications & Focus2

Change Ringtone Volume

If your phone barely rings during incoming calls even though media volume is turned up, the volume keys are probably adjusting the wrong stream. On many Samsung phones, pressing the side buttons on the home screen changes media volume by default and leaves the actual ringer level untouched.

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System & Settings2

Change the Billing Cycle Date

If your data usage counter resets on the 1st of the month but your carrier bills mobile data on a different day, the numbers on your Samsung phone never match your actual invoice. This mismatch comes from a fixed billing cycle date in the data usage settings, not from a tracking bug. Adjusting the start date lines up the on-device counter with your real billing period.

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Notifications & Focus2

Change Media Volume Separately from Ringtone

Videos on YouTube, music apps, and most in-app sounds all run through Media volume, not the ringtone or notification stream. That is why turning your phone silent for calls does not stop a video from blasting through the speaker. If the volume buttons seem to control the wrong sound depending on what is open, this Media stream is the reason.

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Display & Home Screen2

Change Screen Mode

If your Samsung display looks too cool, too warm, or oddly oversaturated, the wrong screen mode is usually the cause. Samsung splits colour rendering into Vivid and Natural, and each mode reacts differently to the white balance slider. Picking the wrong combination makes photos, videos, and even white backgrounds look off.

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Display & Home Screen2

Change Always On Display Clock Style

If the Always On Display on your Samsung phone still shows the plain default clock, you probably haven't opened the Clock style menu yet. One UI offers several analog and digital designs, adjustable colors, and an optional calendar line under the time. Picking the wrong style can hurt readability in daylight or use more battery than needed on an OLED screen.

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Network & Connectivity2

Turn On or Off Roaming Assistance

When you dial a saved contact while abroad, Samsung often sends the number exactly as stored, without adding the country code. That can make calls fail or connect to a random local number in the country you are roaming in instead of reaching your contact back home. Roaming assistance decides whether Samsung fixes this prefix automatically or leaves it to you.

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Other2

Turn On/Off Live Transcribe Shortcut

If the Live Transcribe shortcut is missing when you need it, the toggle inside Hearing enhancements is probably switched off. Without it, hearing impaired users lose the fast way to turn speech picked up by the microphone into readable text. Turning the toggle back on restores quick access to voice-to-text conversion and the keyboard reply option.

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Photo, Video & Media2

Turn Camera Flash On or Off

Photos taken indoors or in low light often turn out dark or grainy because the flash stays in automatic mode and only fires when the camera decides it is needed. If you want the flash to fire on every shot, or stay off completely for a more natural look, you need to take it out of Auto mode. This also affects how the flash behaves while recording video.

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Security & Privacy2

Delete a Saved Fingerprint

Old fingerprints stored on your Samsung phone stay active even after you stop using them, and every extra entry gives a spoofed or borrowed print another chance to unlock the device. If a family member's finger, a child's print, or an unreliable scan is still registered under Fingerprints, it can grant access you no longer want. Removing entries you do not need closes that gap without touching your other saved biometrics.

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Notifications & Focus2

Set Exceptions for Do Not Disturb Sounds and Alarms

When Do Not Disturb mutes your Samsung phone, calls, messages and reminders get silenced along with everything else, even if one of them is urgent. Alarms and media playback stay audible by default, but other sounds stay blocked until you change the settings yourself. This causes missed calls or reminders for anyone who keeps focus mode on for long stretches.

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Other2

Turn the Flashlight On or Off

Looking for a flashlight app on your Samsung phone? You will not find one, because Samsung built the torch function directly into the quick settings panel instead of a separate app. If you cannot locate the toggle, the tile has usually been moved or removed from your quick settings.

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Display & Home Screen

Turn Night Mode On or Off

If your screen feels too bright in dark rooms or your OLED display drains battery faster at night, Night mode on your Samsung phone is likely turned off. It switches the interface to a darker theme, easing eye strain and cutting power use on OLED screens. You can enable it manually or let it follow a schedule.

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Photo, Video & Media

Take Photos with a Tap on Screen

Holding your phone at arm's length for a selfie makes the shutter button hard to reach, especially with one hand. Samsung's camera offers a shooting method called Tap screen that turns the whole preview into a trigger area instead of relying on the small button. Without it switched on, you're stuck stretching your thumb across the screen every time.

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Calls & Messages2

Merge Duplicate Contacts

If the same person shows up twice or three times in your contact list, an import from SIM, cloud, or a second account has likely created copies instead of updating the original entry. Calls, messages, and search results then jump between the duplicate versions, so you never know which one holds the current number. Samsung's Contacts app can combine these entries automatically once you point it at the matching fields.

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Notifications & Focus2

Set a Custom Ringtone

Tired of the same handful of default tones on your Samsung phone? If a downloaded ringtone or your favorite song does not show up when you try to assign it, the sound picker usually just has not scanned that folder yet or the file sits in a format the phone does not recognize as a ringtone.

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Accessibility2

One-Handed Mode Toggle

If your Samsung phone feels too big to use with one hand, reaching the top corners of the screen means constantly shifting your grip. One-handed mode shrinks the display into a smaller window you can move to either side. Without it turned on, you are stuck using both hands for anything above the lower part of the screen.

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Network & Connectivity2

Set Up a VPN Connection

Streaming services blocking your location, unsecured public Wi-Fi, or a company network that only accepts encrypted traffic - all of these push you toward a VPN. On Samsung phones the connection only routes through a VPN server once a valid profile has been created manually, since One UI does not ship with preset providers.

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Notifications & Focus2

Mute a Conversation in Messages

When one contact keeps sending message after message, your phone keeps lighting up and buzzing even though you have no interest in leaving that chat entirely. Samsung Messages lets you silence a single conversation without blocking the sender or deleting the thread. The notification setting for that one chat works independently from your general Messages notifications, so muting a contact won't affect alerts from anyone else.

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Other2

Delete Cookies and Site Data in Samsung Internet

If Samsung Internet keeps showing you the same ads or logs you out of sites you visit often, stored cookies are usually behind it. Site data builds up quietly in the background and can slow down page loading over time. Clearing it wipes the tracking history without touching your saved passwords or bookmarks.

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Display & Home Screen2

Set Up Screen Saver

If your Samsung screen saver never appears while charging, or the wrong image type keeps loading, the Screen saver settings usually need a second look. One UI lets you pick between a color change, a photo frame, a single photo, or a photo table, but the toggle for turning the feature on or off sits a few taps deep in Display settings. Getting the wrong option selected often means the screen saver either never triggers or shows content you did not choose.

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System & Settings2

Change Region and Time Zone

On many Samsung phones the Time zone option stays greyed out and cannot be tapped. This happens because Automatic date and time is still switched on in system settings. Once that toggle is off, you can pick both Region and Time zone by hand.

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Security & Privacy2

Lock Secure Folder Manually

If Secure Folder stays open after you close it, the automatic lock timer or restart-only setting is probably still active. That leaves private apps and files reachable until the timer runs out or the phone reboots. A manual lock option inside the folder closes it right away, without waiting for either condition.

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Notifications & Focus2

Timer Vibration On/Off

If your Samsung timer tone is too quiet or your phone sits in another room, a missed timer alert can ruin cooking, laundry, or focus sessions. The timer sound and phone vibration are controlled by two separate settings inside the Clock app, so a loud ringtone volume alone does not guarantee you feel the alert. Adding vibration gives you a physical cue on top of the tone.

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