What a factory reset does and when you need one

A factory reset erases everything on your Android device and returns it to the state it was in when it left the manufacturer. This means all your apps, photos, messages, contacts, and settings disappear. The operating system itself stays the same — you do not downgrade or upgrade Android, just wipe the data.

You might factory reset because your phone is running slowly, you are selling or giving it away, you forgot your PIN or password, or an app keeps crashing and nothing else fixes it. Before you start, understand that this is permanent — deleted files do not come back unless you backed them up first.

Android devices store backups in your Google Account by default. If you are signed into Google on your phone, your contacts, calendar, Gmail, and some app data already exist in the cloud. Photos and videos usually do not back up automatically unless you turned on Google Photos backup. Check what is actually backed up before you reset.

Key Takeaways

  • A factory reset deletes all apps, photos, messages, and settings but keeps the Android version the same.
  • Your Google Account automatically backs up contacts, calendar, and Gmail, but photos and videos may not unless you turned on Google Photos backup.
  • You can factory reset through Settings on most phones, or through recovery mode if the phone will not turn on or respond.
  • After a reset, you sign back into your Google Account and choose which backed-up data to restore.
  • The process takes 5 to 30 minutes depending on how much data is on the device.

Factory reset through Settings (the standard way)

This method works on any Android phone or tablet that turns on and responds to touch. Open the Settings app — usually a gear icon — and look for a section called System, About Phone, or Advanced. The exact name varies by manufacturer (Samsung, Google, OnePlus, etc.), but the option is always there.

Tap into that section and look for Reset, Reset Options, or Factory Data Reset. You will see a warning that all data will be erased. Tap the button to confirm, and the device will ask you to enter your PIN, password, or fingerprint to make sure you really want to do this. After you confirm, the phone restarts and the reset begins. Do not turn off the device during this process — let it finish, which usually takes 5 to 15 minutes.

When the reset is done, the phone boots up as if it is brand new. You will see the setup screen where you choose your language and connect to Wi-Fi. Sign into your Google Account at this point, and Android will ask which backed-up data you want to restore — contacts, calendar, Gmail, and app data if it was backed up. You can choose to restore everything or pick and choose.

Factory reset through recovery mode (when the phone will not respond)

If your phone will not turn on, will not respond to touch, or is stuck in a loop, you can force a factory reset using recovery mode. This is a special menu built into Android that runs before the main operating system loads. The button combination to enter recovery mode is different for each manufacturer.

For most phones, hold the Power button and Volume Up button at the same time for 10 to 15 seconds until you see a logo or menu. For some Samsung phones, it is Power and Volume Down. For Google Pixel phones, it is Power and Volume Down. If you are not sure, search online for "[your phone model] recovery mode" to find the exact combination.

Once you are in recovery mode, you will see a menu with options like Reboot, Wipe Data, or Factory Reset. Use the volume buttons to move up and down, and the power button to select. Choose the option that says Wipe Data, Factory Reset, or Clear All Data. Confirm the choice, and the reset will begin. This can take 10 to 30 minutes depending on the device. When it finishes, select Reboot or Reboot System Now, and the phone will restart as if it is new.

What to do before you reset

Back up anything you want to keep. Open Google Photos on your phone, tap your profile picture in the top right, go to Photos Settings, and turn on Backup and Sync if it is not already on. This uploads all your photos and videos to your Google Account. The backup happens in the background, but it can take hours or days if you have thousands of photos, so start this step early.

Check what else is backed up by going to Settings, then Google (or Accounts), then Google Account, then Manage Your Google Account, then Backup. You will see what is already saved — usually Contacts, Calendar, Gmail, and some app data. Anything not listed here will be gone after the reset.

If you have files, documents, or other data stored only on the phone itself, move them to Google Drive, OneDrive, Dropbox, or another cloud service before you reset. Download any photos or videos you took that are not in Google Photos. Write down any usernames or passwords you do not remember, because you will need them to sign back into apps after the reset.

What happens after the reset is complete

The phone boots up and shows the initial setup screen. Choose your language, connect to Wi-Fi, and sign into your Google Account using the same email and password you used before. Android will then ask which data you want to restore from your backup — contacts, calendar, Gmail, and app data. You can restore everything at once or skip this step and add things back manually later.

Your apps do not automatically reinstall. You will need to download them again from the Google Play Store. However, if you had paid for apps before, you can download them again without paying a second time — Google remembers your purchase history. Go to the Play Store, tap your profile picture, then Manage Apps and Devices, then Manage, and you will see all the apps you have ever installed. Tap Install next to the ones you want back.

Some apps will restore their settings and data from your backup, but others will not. You may need to sign back into social media apps, email apps, and banking apps. Two-factor authentication codes may be required again. This is normal and a security feature — it makes sure only you can access your accounts.

Troubleshooting a stuck or failed reset

If the reset starts but the phone gets stuck on a loading screen or logo for more than 30 minutes, try a force restart. Hold the Power button for 10 to 20 seconds until the phone vibrates or the screen goes black, then release. Wait a few seconds and press Power again to turn it back on. The reset should continue from where it left off.

If the phone is completely unresponsive and will not turn on at all, plug it into a computer with a USB cable and leave it charging for at least 30 minutes. A completely drained battery can make a phone appear dead. After charging, try the force restart again.

If you are stuck in recovery mode and cannot get out, try selecting Reboot or Reboot System Now. If that does not work, hold the Power button for 10 seconds to force the phone off, then press Power again to turn it back on normally. If the phone still will not boot, the hardware may have a problem, and you may need to contact the manufacturer or a repair service.

Factory reset versus other troubleshooting steps

Before you factory reset, try simpler fixes. If an app is crashing, uninstall it and reinstall it from the Play Store. If the phone is slow, restart it by holding the Power button and tapping Restart. If you have low storage, delete old photos, videos, and unused apps. Clear the cache for individual apps by going to Settings, Apps, selecting an app, then Storage, then Clear Cache.

If the phone is still slow after these steps, a factory reset may help. However, if the phone is slow because the storage is almost full, a reset will not fix the problem — you will fill it up again with the same apps and data. In that case, you might need to delete files permanently or upgrade to a phone with more storage.

Frequently Asked Questions

Will a factory reset remove my Google Account from the phone?

The reset erases the account from the device, but your Google Account itself still exists. When you set up the phone after the reset, you sign back in with the same email and password. Your backed-up data — contacts, calendar, Gmail — will be there waiting to restore.

Can I factory reset my phone if I forgot my PIN or password?

Yes. If you forgot your PIN, you can usually enter your Google Account email and password on the lock screen after a few failed attempts, and Android will let you in. From there, you can factory reset through Settings. If you cannot get past the lock screen at all, use recovery mode to reset without entering a PIN.

What if I do not have a Google Account on my phone?

You can still factory reset, but you will lose all your data with no way to restore it. After the reset, the phone will ask you to create or sign into a Google Account during setup. It is a good idea to set one up so future backups happen automatically.

How long does a factory reset take?

Through Settings, most resets finish in 5 to 15 minutes. Through recovery mode, it can take 10 to 30 minutes depending on how much data is on the device. Do not turn off the phone during the reset — let it finish completely.

Will factory reset remove viruses or malware?

A factory reset will remove most malware because it deletes everything on the device. However, if malware is in your Google Account itself (which is rare), it could reinstall when you restore your backed-up data. If you suspect your account is compromised, change your Google password before you restore anything.