What a factory reset does and when you need one

A factory reset erases all data on your Samsung Galaxy Tab A and returns it to the state it left the factory. This means your apps, photos, videos, contacts, messages, and any files you saved will be deleted. Your tablet will restart with only the default Samsung and Google apps, and you will need to set it up again as though it were new.

Factory reset is useful when your tablet runs slowly, freezes often, or behaves unpredictably. It also removes malware or unwanted apps that won't uninstall normally. If you are selling or giving away your tablet, a factory reset ensures the next owner cannot access your personal information.

Before you reset, back up anything you want to keep. Photos and documents can be saved to Google Drive, Samsung Cloud, or your computer. Contacts sync automatically to your Google account if you set that up beforehand.

Key Takeaways

  • A factory reset deletes all your apps, photos, files, and settings, so back up what matters before you start.
  • You can reset through Settings on the tablet itself, or through a computer if the tablet won't turn on or respond.
  • The reset takes 5 to 15 minutes and your tablet will restart several times during the process.
  • After reset, you will need to sign in with your Google account and set up the tablet again from the beginning.

Factory reset through Settings on your tablet

This is the most common method and works when your tablet turns on and responds to touch. Open Settings and scroll down to find General management (or System on some models). Tap it, then look for Reset or Reset options.

Tap Factory data reset or Erase all data. The tablet will show you a warning that all data will be deleted. Read through it, then tap Reset or Delete all to confirm. You may be asked to enter your PIN, pattern, or password to proceed.

The tablet will restart and begin erasing. You will see a progress bar. Do not turn off the tablet or remove the battery during this time. The process usually takes 5 to 15 minutes. When it finishes, the tablet will restart and show the initial setup screen, the same one you saw when you first turned it on.

Factory reset using Samsung Find Mobile

If your tablet won't turn on, is locked, or does not respond to touch, you can reset it remotely using a computer. Go to findmobile.samsung.com and sign in with the Samsung account you used on the tablet.

Select your tablet from the list of devices. Look for an option called Unlock, Erase, or Factory reset — the exact wording varies by region. Confirm the action. Samsung will send a command to your tablet, and the reset will begin the next time the tablet connects to the internet.

This method requires that you set up Samsung Find Mobile on the tablet before it stops working. If you did not set it up, this route will not work.

Factory reset using Android Device Manager

If you have a Google account linked to your tablet, you can use Google Find My Mobile (formerly Android Device Manager) to erase it remotely. Go to findmymobile.google.com in a web browser on your computer and sign in with the Google account connected to your tablet.

Select your tablet from the list. Click Erase or Factory reset. Google will send a command to wipe the tablet. Like Samsung Find Mobile, this works only if the tablet is connected to the internet or connects later.

This method is more reliable than Samsung Find Mobile because most people set up a Google account during initial tablet setup, whereas Samsung account setup is optional.

What to do after the factory reset

When the reset finishes, your tablet will show the setup screen. You will be asked to select a language, connect to Wi-Fi, and sign in with a Google account. Use the same Google account you used before if you want to restore your apps and settings.

After you sign in, Google will offer to restore your apps from backup. This happens automatically if you turned on backup before the reset. You can choose which apps to restore or skip this step and install them manually later from the Google Play Store.

Your photos, videos, and documents will not restore automatically unless you saved them to Google Drive or Google Photos beforehand. If you backed them up to Samsung Cloud or your computer, you will need to read them again manually.

Troubleshooting a reset that won't start

If you tap Factory data reset and nothing happens, restart the tablet first. Hold the power button until the power menu appears, then tap Restart. Wait for the tablet to turn back on, then try the reset again.

If the Settings app keeps closing or freezing, try restarting in Safe Mode. Hold the power button until the power menu appears, then press and hold Power off until a Safe Mode option appears. Tap it. In Safe Mode, try opening Settings and running the factory reset again. Safe Mode disables third-party apps, which sometimes interfere with the reset process.

If you still cannot reset through Settings, use Google Find My Mobile or Samsung Find Mobile from a computer instead. These remote methods bypass the tablet's interface entirely.

Protecting your data before and after reset

Before you reset, turn on backup for your Google account. Open Settings, tap Accounts, then Google. Select your account and tap Manage your Google Account. Go to the Data & privacy tab and make sure Web & App Activity is on. This backs up your app data and settings.

For photos and videos, open Google Photos and tap your profile picture in the top right. Go to Photos settings and turn on Backup and sync. Choose Original quality or Storage saver depending on how much space you have. Original quality uses your Google Drive storage but keeps full resolution; Storage saver compresses files and uses less space.

For documents and files, use Google Drive or OneDrive. Both let you upload files from your tablet and access them from any device later. After your reset, sign in to the same account and your files will be there.

Frequently Asked Questions

Will factory reset remove my Google account?

No. The reset erases your apps and files but not your Google account. After reset, you will be asked to sign in again. If you use the same account, your apps and settings will restore automatically.

Can I undo a factory reset?

No. Once the reset completes, all data is gone permanently. This is why backing up before you reset is essential. If you have a backup in Google Drive or Google Photos, you can read those files after the reset.

How long does a factory reset take?

Usually 5 to 15 minutes from start to finish. The tablet will restart multiple times. Do not turn it off or remove the battery during this time, or the reset may fail and leave your tablet in an unusable state.

Do I need a computer to factory reset my Galaxy Tab A?

No. You can reset through Settings on the tablet itself. A computer is only needed if your tablet won't turn on or respond to touch. In that case, use Google Find My Mobile or Samsung Find Mobile from a web browser.

Will factory reset fix a slow or frozen tablet?

Often yes. A reset removes apps and files that may be slowing things down, and it clears out corrupted system files. If your tablet is still slow after reset, the problem may be hardware-related and you may need to contact Samsung support.