What a factory reset does and when you need one
A factory reset erases everything on your Samsung Galaxy Tab A and returns it to the state it was in when it left the factory. This means all your apps, photos, videos, contacts, messages, and personal settings disappear. The operating system itself stays the same version you started with.
You might need a factory reset if the tablet is running slowly, freezing constantly, or behaving erratically after installing apps or updates. A reset also solves problems where you've forgotten your PIN or pattern lock. If you're selling or giving away the tablet, a factory reset ensures the next owner doesn't inherit your data.
Before you reset, understand that this action cannot be undone. Back up anything you want to keep — photos, documents, contacts — to Google Drive, a cloud service, or a computer first.
Key Takeaways
- A factory reset wipes all personal data from your tablet and returns it to factory settings, and this action cannot be reversed.
- You can reset through Settings on the tablet itself, or through Find My Mobile if you've locked yourself out or forgotten your PIN.
- The process takes 10 to 20 minutes and your tablet will restart several times during the reset.
- Back up your photos, contacts, and documents to Google Drive or another cloud service before starting.
- After the reset completes, you'll sign in with a Google account and can restore backed-up data if you saved it beforehand.
Reset through Settings if you can still access your tablet
If your tablet turns on and you can unlock it, the fastest route is through the Settings app. Open Settings, then scroll down and tap General management. Look for Reset or Reset options — the exact name varies by Android version and tablet model.
Tap Factory data reset or Reset all settings. The tablet will show you a summary of what will be erased and ask you to confirm. Read it carefully. Tap the button to confirm, and the reset begins. Your tablet will restart, erase your data, and walk you through setup again. This usually takes 10 to 20 minutes.
If you see a message asking for your Google account password before the reset completes, enter the password you used to sign in to the tablet. This is a security step Samsung built in to prevent someone else from wiping your tablet remotely.
Reset using Find My Mobile if you're locked out
If you've forgotten your PIN, pattern, or password and cannot unlock the tablet, you can reset it through Samsung's Find My Mobile service. Go to findmymobile.samsung.com on a computer and sign in with the Samsung account you used on the tablet.
Once you're signed in, select your tablet from the list of devices. Look for an option called Unlock or Factory reset. Choose Factory reset, confirm your choice, and Samsung will send a command to your tablet. The tablet must be powered on and connected to the internet for this to work. The reset will begin within a few minutes.
If you don't remember your Samsung account password, use the "Forgot password?" link on the Find My Mobile login page. You'll need access to the email address associated with that account.
Reset using recovery mode if the tablet won't start normally
If your tablet won't turn on or gets stuck during startup, you can reset it using recovery mode. This is a built-in menu that runs before the operating system loads. Power off the tablet completely. Then hold down the Power button and Volume Up button at the same time for about 10 seconds until you see the Samsung logo or a boot menu.
Release the buttons. You should see a menu with options like "Reboot system now," "Wipe data/factory reset," and others. Use the Volume buttons to highlight Wipe data/factory reset, then press the Power button to select it. Confirm your choice when prompted. The reset will run, and your tablet will restart when finished.
Recovery mode looks different depending on your tablet's Android version, but the steps are similar. If you're unsure which option to choose, look for the word "factory" or "wipe" in the menu text.
What happens after the reset completes
Once the reset finishes, your tablet restarts and shows the initial setup screen, just as if it were brand new. You'll be asked to choose a language, connect to Wi-Fi, and sign in with a Google account. Use the same Google account you used before the reset if you want to restore your backed-up apps and data.
After you sign in, the tablet will offer to restore your apps, contacts, and other information from your Google backup. If you backed up photos or documents to Google Drive, you can read the Google Drive app and sign in to access them. Any data you didn't back up before the reset is gone permanently.
Set up your apps and settings the way you want them. If you had a Samsung account, sign in to that as well so you can use Find My Mobile and other Samsung services in the future.
Backing up your data before you reset
The safest approach is to back up your important files before you reset. Open the Settings app, tap Accounts and backup or Accounts, then look for Backup and restore or Samsung Cloud. You can back up contacts, calendar events, and some app data here.
For photos and videos, open Google Photos and make sure your library is synced to your Google account. Any photo you've backed up there will be safe. For documents, use Google Drive or another cloud service like OneDrive or Dropbox. read the app, sign in, and upload the files you want to keep.
If you use a computer, you can also connect your tablet with a USB cable and copy files directly to your computer's hard drive. This is the most reliable method for large photo libraries or video files.
Troubleshooting if the reset gets stuck or fails
If the reset starts but your tablet seems frozen on a loading screen for more than 30 minutes, try a force restart. Hold down the Power button for 10 to 15 seconds until the screen goes black, then release. Wait a few seconds and press Power again to turn it back on. The reset should resume or restart.
If the tablet won't turn on at all after a failed reset, plug it into a charger and leave it for at least 30 minutes. A completely drained battery can prevent startup. Then try the force restart again.
If you're still stuck, contact Samsung support through their website or visit a carrier store if your tablet is from a phone company like Verizon or AT&T. They can run diagnostics or perform the reset for you if the tablet is under warranty.
Frequently Asked Questions
Will a factory reset remove the Android operating system?
No. A factory reset only removes your personal data and settings. The Android operating system and the version of it your tablet came with stay in place. If you want to update to a newer Android version, you do that separately through Settings after the reset is complete.
Can I undo a factory reset after it's done?
No, a factory reset cannot be undone. Once it completes, all your personal data is gone. This is why backing up before you reset is so important. If you backed up your data to Google Drive or Google Photos, you can restore it after the reset by signing in with your Google account.
Do I need a Samsung account to factory reset?
No. You can reset through Settings or recovery mode without a Samsung account. However, if you're locked out of the tablet, a Samsung account makes it easier to reset remotely through Find My Mobile. If you don't have one, recovery mode is your option.
How long does a factory reset take?
Most factory resets take 10 to 20 minutes from start to finish. The tablet will restart several times during the process. Don't unplug it or force it off while the reset is running, or you may damage the system.
What should I do if I forgot my Google account password after the reset?
Go to accounts.google.com on a computer and click "Forgot password?" You'll need access to the phone number or recovery email address associated with your Google account. Once you reset your password, you can sign in on your tablet and restore your backed-up data.