What a factory reset does and when you need one

A factory reset erases everything on your Samsung tablet — all apps, photos, messages, settings, and files — and returns it to the state it was in when it left the factory. The operating system stays the same, but your personal data does not. You should back up anything you want to keep before you start.

Factory resets are useful when your tablet is running slowly, freezing often, or behaving strangely after installing an app. They also work if you have forgotten your PIN or password and cannot unlock the device. If you are selling or giving away the tablet, a factory reset ensures the new owner does not inherit your accounts or files.

A factory reset is different from a soft reset (turning the device off and on again). It is also different from clearing the cache, which removes temporary files but keeps your apps and data. Once you start a factory reset, you cannot stop it partway through.

Key Takeaways

  • Back up your photos, documents, and any files you want to keep before starting, because a factory reset deletes everything on the tablet.
  • You can factory reset through Settings on most Samsung tablets, or by holding specific buttons if the tablet will not turn on or unlock.
  • The reset process takes 5 to 15 minutes and the tablet will restart several times — do not interrupt it or remove the battery.
  • After the reset completes, you will see the initial setup screen as if the tablet is brand new, and you can sign in with your Samsung or Google account.

How to back up your data before resetting

The safest way to back up a Samsung tablet is to use Samsung Cloud, which stores your photos, contacts, calendar events, and some app data on Samsung's servers. Open Settings, tap Accounts and backup, then Samsung Cloud. Tap Back up and select what you want to save. If you have a Samsung account, the backup happens automatically once you turn it on.

For photos and videos, you can also use Google Photos. Open the app, tap your profile picture in the top right, go to Photos settings, and turn on Backup and sync. Google Photos stores your media in your Google account, separate from the tablet itself.

For documents and files, connect your tablet to a computer using a USB cable and copy them to a folder on your computer. You can also email important files to yourself or upload them to Google Drive, OneDrive, or Dropbox. Make sure the backup is complete and you can access it from another device before you proceed with the reset.

Factory reset through Settings (the standard method)

This method works if your tablet turns on and you can unlock it. Open Settings and scroll down to find General management or System (the exact name varies by model and Android version). Tap it, then look for Reset or Reset options.

Tap Factory data reset or Erase all data. The tablet will show you a summary of what will be deleted and ask you to confirm. Read it carefully — this is your final note to cancel. If you are sure, tap Reset or Delete all. The tablet may ask for your PIN, password, or Samsung account password to confirm you own it.

The reset process begins and you will see a progress bar. The tablet may restart several times and show the Samsung logo. This is normal. Do not turn off the tablet, remove the battery, or interrupt the process. It usually takes 5 to 15 minutes depending on how much data was on the device.

Factory reset using hardware buttons (if the tablet will not start)

If your tablet will not turn on, is stuck in a loop, or you cannot unlock it, you can force a factory reset using the power and volume buttons. The exact button combination varies by Samsung model, but the most common is: hold Power + Volume Up together until the Samsung logo appears, then release. Some older models use Power + Volume Down instead.

When the recovery menu appears, use the volume buttons to navigate and the power button to select. Look for an option called Wipe data/factory reset or Factory reset. Highlight it and press power to select it. The tablet will ask you to confirm — select Yes using the volume buttons and press power again.

The reset will begin and the tablet will show a progress bar or a list of files being deleted. This takes longer than a Settings reset, sometimes 20 to 30 minutes. Do not interrupt it. When it finishes, you will see an option to Reboot system now — select it and the tablet will restart into the setup screen.

What happens after the reset is complete

When the tablet restarts, you will see the initial setup screen — the same screen you saw when the tablet was brand new. You can choose your language, connect to Wi-Fi, and sign in with a Google account or Samsung account. If you have a Samsung account, you can restore your Samsung Cloud backup here by signing in and selecting what to restore.

After you sign in with your Google account, the Play Store will automatically reinstall apps that were on the tablet before the reset. This can take a while depending on how many apps you had. You can speed it up by selecting which apps to install first, or you can let it run in the background.

Your photos and videos will not be restored automatically unless you use Google Photos or Samsung Cloud. If you backed up files to your computer, you can reconnect the tablet with a USB cable and copy them back. Take your time with this step — there is no rush to restore everything at once.

Troubleshooting a reset that goes wrong

If the tablet gets stuck on the Samsung logo or the progress bar does not move for more than 30 minutes, try a hard reset: hold the power button for 10 seconds to force the tablet off, wait 30 seconds, then turn it back on. If it is still stuck, try the hardware button reset method instead.

If you see an error message during the reset, write down the exact message and search for it on Samsung's support website or a tech forum — different errors have different solutions. Common errors include "E: failed to mount /cache" or "E: unable to mount /data", which usually mean the tablet's storage is corrupted and may need professional repair.

If the tablet restarts but gets stuck on the setup screen and will not let you proceed, try connecting to Wi-Fi first — some tablets need an internet connection to complete setup. If that does not work, try the Settings reset again from the beginning. If the tablet still will not complete setup after two attempts, contact Samsung support or visit a repair shop.

Frequently Asked Questions

Will a factory reset remove the Android operating system?

No. A factory reset only erases your personal data and apps. The Android operating system that came with the tablet stays in place. The tablet will have the same version of Android it had before, unless Samsung has released an update since you bought it.

Can I factory reset a Samsung tablet if I forgot the password?

Yes. If you cannot unlock the tablet, use the hardware button method (Power + Volume Up or Power + Volume Down) to access the recovery menu and select factory reset. You do not need to know the password to do this. After the reset, you will set up the tablet as new and create a new password.

How long does a factory reset take?

A reset through Settings usually takes 5 to 15 minutes. A reset using hardware buttons can take 20 to 30 minutes because it has to check the entire storage. The exact time depends on how much data was on the tablet and how fast the storage is. Do not interrupt the process or turn off the tablet.

Do I need to charge the tablet before I reset it?

Yes. Make sure the battery is at least 50 percent charged before you start. A factory reset uses power, and if the battery dies during the process, the tablet may not restart properly. Plug it in and let it charge fully if you can.

What if I reset the tablet by mistake?

If you have a backup in Samsung Cloud or Google Photos, you can restore it after the reset completes. Sign in with the account you used to back up, and the apps and data will reinstall. If you do not have a backup, the data is gone and cannot be recovered.