How to restart samsung phone

Your Samsung Galaxy just froze mid-scroll, and you need to know how to restart samsung phone without losing anything. That’s a completely normal spot to be in. Every Galaxy user hits this eventually, and the fix takes under a minute.

As of 2026, the overwhelming majority of Galaxy phones, including the S24, S25, Z Fold 6, and A series, use the same force-restart key combo. Press Volume Down and Side together for about seven seconds. It’s the universal reset gesture for sealed-battery models.

Here’s exactly how to restart your phone, no matter which situation you’re dealing with.

Quick Answer

Restarting a Samsung phone is simple. Press and hold the Side key and Volume Down key together. Hold for seven to ten seconds.

Release when the Samsung logo appears. This is a forced restart and doesn’t delete data.

Why Restarting Actually Fixes Most Samsung Problems

A restart is the first troubleshooting step for a reason. It clears the phone’s RAM, closes background processes, and resets the software stack that can get tangled after days of heavy use. Most small glitches, like a stuck app, a laggy UI, or a Bluetooth connection that won’t pair, clear themselves after a fresh boot.

The difference between a restart and a factory reset matters here. A restart closes and reopens all software. A factory reset erases everything and returns the phone to its out-of-box state.

One is a gentle refresh, the other is a nuke. You want the gentle refresh first.

Here’s what a restart actually does behind the scenes:

• Frees up RAM that apps have been hogging
• Stops background services that might be misbehaving
• Clears cached system data that’s no longer valid
• Reconnects Wi-Fi, mobile data, and Bluetooth radios cleanly
• Shuts down processes that could be draining your battery

Aggregate user feedback and Samsung’s own support guides consistently recommend a restart before anything deeper. It’s fast, safe, and reversible. There’s no backup needed, no login to remember, no files lost.

That alone makes it the highest-value fix on any Galaxy phone.

Restart vs. Reset: A Quick Comparison

Think of a restart as turning a computer off and on. It’s the thing you try before calling tech support, because most of the time it just works.

Before You Start: Check Your Samsung Model

Not all Galaxy phones restart the same way. The biggest difference comes down to whether your phone has a sealed battery or a removable one. Newer models, basically anything released after 2015, use a sealed battery.

That changes which restart method you’ll use.

The other thing to check is your button layout. Modern Galaxy phones use a Side key on the right edge and Volume keys on the left. Older models had a physical Home button on the front, and some had a dedicated Bixby key.

Every model behaves a little differently.

Here’s a quick way to identify your Galaxy model family:

If you’re not sure which model you have, open the Settings app and tap “About phone.” That page shows the exact model number. You can also look at the back of the phone or search the model number printed near the SIM tray.

Also check whether your Side key has a custom action assigned. Some Samsung users set the Side key to launch Bixby, Google Assistant, or a camera app with a long press. That can interfere with restart methods that rely on holding the button, so later in this guide we’ll show you workarounds.

Method 1: Normal Restart (When the Screen Still Works)

This is the easiest and safest method. Use it when your phone is responsive, and you can still see and tap the screen. It’s the everyday restart you’d do once a week or after updating software.

Here’s how to do it:

1. Press and hold the Side key on the right edge of the phone.
2. Wait about two seconds until the power menu appears on screen.
3. Tap “Restart.”
4. Tap “Restart” again to confirm if prompted.
5. Wait for the screen to go black and the Samsung logo to appear.

The phone will take roughly 30 seconds to boot back up. After that, you’ll see the lock screen, enter your PIN or biometrics, and you’re back in business.

On some models, like the Galaxy S9 and earlier, the power button is on the right side but might feel stiff. Just press and hold it normally. If nothing appears, try pressing and holding the button for a full three seconds instead of just a quick tap.

A few common hiccups with the normal restart:

• The power menu might not appear if the screen is unresponsive. Skip to Method 2 in that case.
• Some Android versions require you to press the Side key and Volume Down together briefly to bring up the power menu. This is true for certain Samsung devices running One UI 5 or later. If you hold the Side key alone and nothing happens, add the Volume Down key for one second and release.
• If a long press launches Bixby instead of the power menu, you can change the Side key behavior. Go to Settings, tap Advanced Features, then Side key. Set it to “Power off menu” instead of the assistant.

The normal restart is the one you’ll use 90% of the time. It’s gentle, it’s clean, and it never risks your data. Use it first whenever your phone is still awake and listening.

Method 2: Force Restart (When the Screen Is Frozen or Black)

A force restart is what you need when the screen won’t respond to touch, the display stays black, or the phone seems completely unresponsive to short button presses. It’s the digital equivalent of holding down your computer’s power button until it shuts off.

The beauty of this method is that it works without touching the screen at all. Modern Galaxy phones don’t need the touchscreen to process a hardware-level reboot. The key combination sends a direct signal to the phone’s hardware to cut power and restart.

Here’s the exact process for almost every sealed-battery Galaxy phone:

1. Press and hold the Volume Down key on the left edge and the Side key on the right edge at the same time.
2. Keep holding both buttons for seven to ten seconds. Don’t let go if the screen flashes or vibrates.
3. Wait for the screen to turn black without releasing.
4. Release both buttons when the Samsung logo appears on screen.
5. Let the phone boot normally.

It’s that simple. No screen taps, no menus, no confirmation dialog. The phone will feel like it’s rebooting itself even if the display was fully black before.

On some older models with a physical Home button, the combination is slightly different. If you have a Galaxy S6, S7, S8, or Note 8, try holding Volume Down, Side button, and Home button together for about seven seconds. That combination also works on certain Note 9 and S9 units in specific carrier versions.

What to expect during a force restart:

• The screen stays black for a few seconds. That’s normal.
• The phone may vibrate once when the power cuts.
• The Samsung logo appears, followed by a short loading screen.
• You might need to enter your SIM PIN or lockscreen password after boot.

A force restart does not erase your data. It doesn’t touch your photos, messages, apps, or settings. It only interrupts the power flow and forces the operating system to start fresh.

That makes it completely safe to use even if your screen is frozen on a random app.

One thing to watch out for: if your phone is frozen because of a hardware issue like an overheating battery or water damage, a force restart won’t fix that. It might temporarily mask the problem, but if your phone repeatedly freezes in under a day, you’re dealing with something deeper. We’ll cover that in the troubleshooting section later.

Also note that the Volume Down key matters. Holding only the Side key for ten seconds on some Galaxy models might trigger Emergency Mode, Bixby, or nothing at all. The Volume Down key is the piece that makes the combination read as a reboot command across the entire current lineup.

Method 3: Restarting Older Galaxy Models With Removable Batteries

If you’re using a Galaxy S5, Note 4, or any model from around 2014 or earlier, you likely have a removable battery. That also applies to older budget phones like the Galaxy J3 or J7. These phones let you pull the battery out, which is the ultimate hard reset.

Here’s the safest way to do it:

1. Power off the phone if it still responds. If it’s frozen, skip this step.
2. Turn the phone over and remove the back cover. It should pop off with a bit of pressure at the corner.
3. Lift the battery out by the small notch or edge. Don’t pry with a metal tool.
4. Wait at least 30 seconds. This lets the internal capacitors drain completely.
5. Reinsert the battery and snap the back cover back on.
6. Press and hold the Power button until the Samsung logo appears.

Removing the battery clears all residual power from the system. It’s the equivalent of unplugging a desktop computer from the wall. That full power drain clears any frozen state more thoroughly than a software reboot.

A few cautions for older Galaxy owners:

• If your phone has any water damage, do not remove the battery. Doing so while wet can short circuit parts of the motherboard.
• Avoid touching the gold contacts on the battery with bare fingers. Oils and moisture can interfere with the connection.
• Use only the battery that belongs to your specific model. A Galaxy S5 battery won’t fit any other device.
• If the battery is swollen or bulging, stop using it immediately. That’s a safety hazard, not a restart issue.

What if the phone doesn’t respond after reinserting the battery? Try plugging it into a charger for a few minutes. Some older batteries drop below a safe voltage level and need a short charge before the phone will boot.

The removable battery method is dying out, but it’s still the most reliable trick for legacy devices. Hold onto that knowledge while these phones are still in circulation.

Method 4: When the Phone Is Completely Dead (No Screen at All)

Sometimes a phone looks dead but really isn’t. The screen stays black, no buttons do anything, and you start wondering if your Galaxy has finally given up. Before you panic, slow down and check the basics.

First, plug the phone into a charger. Use the original Samsung cable and wall adapter if you have them. Wait two to five minutes.

A completely drained battery will often show a charging icon after a few minutes. If you see it, your phone is fine, just empty.

If you don’t see anything, try a different combination of cable, brick, and wall outlet. Damaged cables are a common culprit. Also check the charging port for lint or debris.

A compressed air can or a toothpick can clean it out gently, but don’t jam anything in there.

Still nothing after 15 minutes? Now it’s time for a force restart. This is the same method from before, but you’ll hold the buttons a little longer:

1. Press and hold Volume Down and Side together.
2. Keep holding for a full 15 seconds.
3. Release and watch for the Samsung logo or any vibration.

The extended hold sometimes catches phones that feel completely unresponsive. It sends a stronger power-cycle signal to the hardware.

If the phone still doesn’t respond, try charging it from a laptop USB port instead of a wall adapter. Some older Galaxy models behave strangely with high-speed wall chargers. A low-power USB port can sometimes nudge a deeply discharged battery back to life.

If you’ve charged for 30 minutes and still see zero signs of life, the problem may be hardware-related. A dead battery, a damaged charging port, or a broken power button can all cause this. At that point, the restart methods above won’t help.

You’re looking at a repair shop visit or planning a trip to Samsung support.

What to Do If the Phone Won’t Turn Back On After a Restart

A restart usually works. When it doesn’t, you’ll see one of three things: a phone stuck on the Samsung logo, a boot loop, or a black screen with occasional vibrations. Each has a different next step.

If It’s Stuck on the Samsung Logo

The phone powers on, shows the logo, and then sits there forever. This usually means the system is crashing during boot. Try a force restart first.

Hold Volume Down and Side for ten seconds. That sometimes breaks the cycle.

If the logo reappears, you’re stuck in a loop. The next move is to clear the system cache partition. This won’t delete your data.

Here’s how:

1. Power off the phone completely.
2. Press and hold Volume Up and Side together.
3. Release both buttons when the blue Android menu appears.
4. Use the Volume keys to scroll to “Wipe cache partition.”
5. Press the Side key to select it.
6. Scroll to “Yes” and confirm.
7. Wait for the wipe to finish, then select “Reboot system now.”

Clearing the cache removes temporary system files that can cause boot failures. It’s a recognized troubleshooting step in Samsung’s official documentation.

If the Phone Keeps Restarting on Its Own

A boot loop means the phone turns on, runs for a few seconds, then crashes and restarts again. This often happens after a bad software update or an app that’s incompatible with your current Android version.

Try booting into Safe Mode next. Safe Mode loads the phone without third-party apps, which helps isolate an app-related problem.

1. Force restart the phone.
2. When the Samsung logo appears, press and hold Volume Down.
3. Keep holding until the home screen loads.
4. You should see “Safe mode” in the bottom-left corner.

In Safe Mode, if the phone stays on, the issue is an app you installed. Uninstall anything you added recently, then restart normally. If the boot loop continues in Safe Mode, the problem is deeper, and a factory reset via Recovery Mode is the last resort.

If the Screen Stays Black but the Phone Vibrates

This is a strange one. The phone vibrates, the screen might flash, but nothing displays. That’s usually a display or connector issue.

A force restart sometimes restores the display, but more often it’s a hardware failure.

Don’t attempt to open the phone yourself. Samsung’s warranty covers many display issues on newer models. Check your warranty status through the Samsung Members app or contact Samsung support directly.

Mistakes to Avoid: What Not to Do

A restart is safe, but people still manage to mess it up. Here are the mistakes we see most often, along with the right way to handle each one.

Holding the Wrong Button Combination

Holding the Side key alone on many Galaxy phones triggers Bixby or Google Assistant. It won’t restart the phone. Always pair the Side key with Volume Down.

That’s the key combo that works across modern Samsung devices.

Confusing Restart With Factory Reset

The options are right next to each other on some screens. Restart reboots the phone. Factory reset wipes it.

If you ever see a warning saying “This will erase all data,” you’ve gone too far. Cancel and back out.

Releasing Buttons Too Early

During a force restart, people often let go the second the screen goes black. That’s too early. The phone hasn’t fully cut power yet.

Keep holding until the Samsung logo appears, even if the screen looks dead for a few seconds.

Using Emergency Mode Out of Confusion

Pressing the Side key quickly three times activates Emergency Mode on some Samsung phones. It sends your location to emergency contacts and disables non-essential apps. To exit Emergency Mode, press the Side key three times again or tap the option in the notification drawer.

Restarting Over and Over Without Fixing the Root Cause

If your phone freezes three times in one day, a restart isn’t the answer anymore. Repeated restarts mask deeper problems like low storage, corrupted apps, or a failing battery. Pay attention to the pattern and move to the troubleshooting section below.

Prying a Sealed Battery Out

You can’t remove the battery from a Galaxy S24. Trying to do so with a screwdriver or pry tool will break the screen, the frame, or the battery itself. If your phone is sealed, use the force restart method.

Never force the back cover off.

Real Scenarios: When Each Restart Method Is the Right Call

It helps to see restart methods in context. Here are three real-world situations and the exact fix for each.

Scenario 1: A Frozen App While Scrolling

You’re scrolling through Instagram and the screen locks up. Touch is unresponsive. The clock updates, so the phone isn’t dead.

What do you do?

This is a classic force restart situation. Hold Volume Down and Side for seven to ten seconds. The phone reboots, and the frozen app is gone.

No data is lost. Your feed will be right where you left it.

Scenario 2: A Black Screen After a Drop

Your Galaxy hits the floor, and the screen goes completely black. The phone still rings when you call it, so it’s alive. That points to a display or connector issue.

A force restart is still worth trying first. Press Volume Down and Side together until the Samsung logo appears. If the screen comes back, you got lucky.

If it stays black, the display hardware likely took the hit. That’s a repair shop situation.

Scenario 3: A Boot Loop After a System Update

You updated to a new version of One UI, and now the phone endlessly cycles through the Samsung logo. This is one of the most common post-update problems.

Skip the simple restart. Go straight to Recovery Mode and wipe the cache partition. If that doesn’t work, Safe Mode will tell you whether an app is interfering.

Finally, a factory reset should fix it, but only after you’ve backed up everything.

When a Restart Isn’t Enough: The Next Steps

A restart handles minor software glitches. It won’t fix continuous crashes, massive lag, or random shutdowns. When restarts stop working, work through these steps in order.

Boot Into Safe Mode

Safe Mode is the quickest way to test whether an app is causing your problems. In Safe Mode, all third-party apps are disabled. If your phone behaves normally there, uninstall recently downloaded apps until the issue stops.

Check Your Storage Space

Galaxy phones need free storage to run smoothly. If you constantly hit 95 percent or higher storage usage, apps will crash and the system will lag. Check this by going to Settings and tapping Battery and device care, then Storage.

Delete old videos, clear downloads, and empty the trash folder in the Gallery app.

Clear the Cache Partition

We covered this in the boot-loop section, but it helps for general sluggishness too. Clearing the system cache doesn’t touch your files. It just removes temporary junk that can slow down the phone.

Update Your Software

Samsung pushes regular security updates and One UI patches. An outdated system can develop bugs that a restart won’t fix. Go to Settings, tap Software update, and check if a new version is available.

Back Up and Factory Reset

When everything else fails, the factory reset is the final card. It’s a huge step, but it often fixes software issues that mimic hardware failure. Before you do it, back up your photos, files, and messages to Samsung Cloud, Google Drive, or a computer.

To factory reset on a modern Galaxy:

1. Back up all important data.
2. Go to Settings, then General Management.
3. Tap Reset and select Factory data reset.
4. Review the warning and confirm.
5. Wait for the phone to wipe and reboot.

This is a real reset. It erases every photo, message, app, and setting on the phone. Use it only after you’ve exhausted every other option.

Contact Samsung Support

If you’ve done all of this and the phone still misbehaves, stop guessing. A persistent issue could mean a dying battery, a damaged motherboard, or a faulty charging port. Samsung’s official support page offers troubleshooting tools and service-center locations.

Most carriers can also run diagnostic checks in franchise stores.

The official Samsung support site is the right place to start. You can chat with a technician, schedule a repair, or check warranty coverage without leaving home.

Frequently Asked Questions About Restarting Samsung Phones

Does a restart delete any data?

No. A restart closes all apps and reloads the operating system. It never touches your photos, messages, contacts, apps, or settings.

Your phone will look exactly the same after booting back up, just with a fresh start.

How often should you restart your Samsung phone?

Once a week is a good baseline. A weekly restart clears memory leaks and keeps the system feeling responsive. If you use your phone heavily for gaming or video editing, twice a week is even better.

Is a force restart bad for the battery?

No. A force restart cuts power abruptly, but modern lithium-ion batteries are built to handle that. It doesn’t cause damage, reduce capacity, or shorten battery life.

Your battery would need physical damage or extreme heat to be harmed.

What’s the difference between restart and reset?

A restart reboots the phone and keeps all data. A reset wipes the phone and restores factory settings. The two are often confused.

Always try a restart first, because a reset is permanent without a backup.

Will a restart fix a phone that keeps overheating?

It can for a short time. Overheating often comes from high-performance apps, background processes, or direct sunlight. A restart clears those background tasks.

If your phone keeps overheating daily, the battery or processor may have a deeper issue.

Why won’t my Samsung power menu show up?

If you hold the Side key and nothing appears, your phone may have a custom Side key action assigned. Hold the Side key and Volume Down together instead. That usually forces the power menu even when the Side key is mapped to Bixby or another shortcut.

Final Decision Guide: Which Restart Method Fits Your Situation?

Use this table to find the right fix for your phone’s exact behavior.

Match your situation to the right method, and go from there. Ninety percent of Galaxy problems come down to a simple restart, so start with the fastest fix and only escalate when you have to.