What a factory reset does and when you need one

A factory reset wipes your Samsung phone back to the state it left the factory — all your photos, messages, apps, and settings disappear. The operating system stays, but everything you added or changed goes. You use a factory reset when your phone is sluggish, won't stop crashing, you're selling it, or you've forgotten your PIN and can't get past the lock screen.

Before you reset, understand that this is permanent. Your photos and messages don't come back unless you backed them up to Samsung Cloud, Google Drive, or your computer. If you're locked out of your phone, a reset is often the only way forward — but it also means losing anything not backed up.

A factory reset is different from a soft reset (turning the phone off and on), which fixes temporary glitches without erasing anything. If your phone is just slow or frozen, try a soft reset first.

Key Takeaways

  • A factory reset erases everything on your phone and returns it to original settings, so back up your photos, messages, and important files before you start.
  • You can reset through Settings on most Samsung phones, or through the recovery menu if you can't access Settings.
  • If your phone is locked with a PIN or pattern, you can still reset it, but you'll lose access to any files not backed up to the cloud.
  • The reset takes 5 to 15 minutes depending on how much data is on your phone, and your phone will restart several times during the process.
  • After the reset completes, you'll see the setup screen as if the phone is brand new, and you can sign in with your Samsung or Google account to restore some data.

How to reset through Settings (the standard method)

This is the fastest way if your phone turns on and you can navigate to Settings. Open Settings, then scroll down and tap General management. Tap Reset, then Factory data reset. Read the warning — it will list what will be deleted. Tap Reset again, then Delete all to confirm.

Your phone will restart and show a progress bar. Do not turn it off or unplug it during this time. The reset usually takes 5 to 15 minutes. When it finishes, you'll see the initial setup screen, the same one you saw when the phone was new. From there, you can sign in with your Google account or Samsung account, and some of your backed-up data (contacts, calendar, some app data) will restore automatically.

How to reset using the recovery menu (if Settings won't open)

If your phone won't boot normally, is stuck in a loop, or Settings is inaccessible, use the recovery menu. Turn off your phone completely. Then press and hold Volume Up and Power at the same time for about 10 seconds. Your phone will vibrate and show the Samsung logo — keep holding both buttons.

Release when you see the recovery menu (a screen with options in white text on a black background). Use the volume buttons to highlight Wipe data/factory reset, then press Power to select it. Highlight Yes and press Power again. The reset will begin. Do not interrupt it — let your phone restart on its own.

The button combination varies slightly on older Samsung models. If Volume Up and Power doesn't work, try Volume Down and Power instead. If neither works, look up your specific model number (found in Settings > About phone) and the correct key combination for that model.

Backing up before you reset

If you still have access to your phone and time to prepare, back up your data first. Open Settings, tap Accounts and backup, then Backup and restore. Tap Back up my data and make sure Samsung account is selected. Your contacts, messages, app data, and some settings will upload to Samsung Cloud.

For photos and videos, open Google Photos (or Samsung Gallery if you prefer), tap your profile icon, go to Photos settings, and turn on Backup and sync. This uploads your photos to Google Drive automatically. You can also connect your phone to a computer with a USB cable and copy files manually to your hard drive.

After the reset, sign in with the same Samsung account or Google account you used for backup, and your data will restore. Not everything comes back — some app settings and text message formatting may not restore perfectly — but your photos, contacts, and calendar will be there.

What to do if you're locked out with a PIN or pattern

If you've forgotten your PIN, pattern, or password, you can still reset the phone, but you cannot back up first. Use the recovery menu method described above. A factory reset bypasses the lock screen because it erases the lock screen data along with everything else.

After the reset, the phone will ask you to sign in with a Google account during setup. If you remember the Google account email and password you used on that phone, sign in — Google will restore your contacts, calendar, and some app data. If you don't remember the account details, you'll have to set up the phone as new.

What happens after the reset is complete

Your phone will restart and show the Welcome screen, the same setup wizard you saw when it was brand new. You'll be asked to choose a language, connect to Wi-Fi, and sign in with a Google account or Samsung account. Do this — it's how your backed-up data returns.

After setup, your phone will be empty except for the default Samsung and Google apps. Your photos, messages, and third-party apps (like social media or banking apps) won't be there unless you backed them up. You can read apps again from the Google Play Store or Samsung Galaxy Store using the same account you used before.

Troubleshooting a reset that won't start or finish

If the reset starts but gets stuck on a loading screen, your phone may have a software problem. Try a soft reset first: hold the Power button for 10 seconds until the phone vibrates and restarts. If that doesn't help, try the recovery menu reset again, but this time make sure your phone has at least 50% battery before you start.

If the recovery menu won't appear, your phone may need a deeper repair. At this point, contact Samsung Support or visit a Samsung service center. They can perform a reset using specialized tools if the standard methods don't work. This is rare, but it happens when the phone has a hardware issue or corrupted system files.

Frequently Asked Questions

Will a factory reset remove viruses or malware from my Samsung phone?

Yes. A factory reset erases everything, including malware. However, if malware is on your Google account (not just your phone), it may reinstall when you sign back in. After the reset, change your Google password before signing in again, and review your account's connected devices in Google Account settings to remove anything suspicious.

Can I undo a factory reset after it's done?

No. A factory reset is permanent and cannot be undone. Your only recovery option is data you backed up to Samsung Cloud, Google Drive, or another cloud service before the reset. This is why backing up first is critical.

Do I need to remove my SIM card before resetting?

No. A factory reset does not affect your SIM card or your phone number. Your carrier information stays on the SIM. You can leave the SIM in the phone during the reset.

How long does a factory reset take?

Most resets finish in 5 to 15 minutes, depending on how much data is on your phone. Phones with very full storage may take longer. Do not turn off your phone or remove the battery during this time — let it restart on its own.

What if I reset my phone but forgot to back up my photos?

Once a factory reset completes, your photos are gone and cannot be recovered through normal means. In the future, use Google Photos or Samsung Cloud to back up automatically so you don't lose photos if you need to reset. Some data recovery services claim to recover deleted photos, but they are expensive and success is not may provide.