Factory resetting an Android phone returns it to the state it was in when you first unboxed it. Every app, account, photo and setting on the internal storage is cleared, and the software goes back to its original form. People usually do this for one of two reasons: to fix a sluggish, crashing or glitchy phone, or to wipe it clean before selling, recycling or trading it in. Whatever the reason, two things matter more than the reset itself: having a proper backup, and dealing with your Google account before you wipe. Get those right and the actual reset is only a few taps.

Android is made by dozens of manufacturers, so the exact menu names shift from brand to brand and even between versions of the same brand’s software. This guide gives you the general stock-Android path first, then the common variations for Samsung, Pixel and Xiaomi, plus the recovery-mode method for when you cannot even unlock the phone. If you are weighing a change of platform while you are at it, our iPhone vs Android comparison is worth a read.

Back up your phone first

A factory reset is final, with no undo button. Spend a few minutes making sure nothing you care about exists only on this one device.

  1. Open Settings and tap Google, then Backup, and tap Back up now to save app data, call history, contacts, device settings and SMS messages to your Google account.
  2. Open the Google Photos app, tap your profile picture, and confirm Backup is on so every picture and video is safely in the cloud before you wipe.
  3. For documents and downloads, copy anything important to a computer over USB, or upload it to Google Drive.
  4. If you use WhatsApp or similar, open its own in-app backup setting and run a fresh chat backup, because those are not always covered by the main Google backup.
  5. Note down your Wi-Fi password if you will need to reconnect later; our guide on how to find your WiFi password helps if you have forgotten it.
  6. Check the backup dates show today before moving on.

With a confirmed, recent backup in place, you can erase without fear of losing anything permanently, and restore it all when you sign back in.

Remove your Google account to avoid an FRP lockout

This is the step that catches people out, so do it before you reset. Factory Reset Protection (FRP) is an Android security feature, present on Android 5.1 and every version since, that switches on automatically the moment a Google account is signed in on the phone. After a wipe, the device will demand that same Google account’s username and password before it can be set up again. If you forget which account was signed in, or you have sold the phone to someone who obviously does not have your login, the device is effectively bricked at the welcome screen.

  1. Open Settings and tap Passwords & accounts (on Samsung, tap Accounts and backup, then Manage accounts).
  2. Tap your Google account in the list.
  3. Tap Remove account and confirm. Repeat for any second or third Google account on the device.
  4. If a Samsung account, Mi account or similar maker account is signed in, remove that too, since those can also trigger their own lock.
  5. It is also worth turning off your screen lock, as a belt-and-braces measure before the wipe.

Removing the account before the wipe disables FRP cleanly. This single step is the difference between a smooth handover and a phone the next owner cannot use. It is also worth knowing that there is no legitimate shortcut around FRP once it has locked a device, which is exactly the point of the feature, and why no reputable buyer will touch a locked handset. If you are keeping the phone and just troubleshooting, you can leave the account in place and simply re-enter your password after the reset.

Erase all data through Settings

This is the standard method and the one to use whenever the phone still unlocks and runs normally. The wording below is for stock Android, such as on a Pixel; brand variations follow in the next section.

  1. Make sure the phone is charged to at least 50 percent, or keep it plugged in, so a flat battery cannot interrupt the wipe.
  2. Open Settings and tap System.
  3. Tap Reset options (you may first need to expand an Advanced section or tap a three-dot menu).
  4. Tap Erase all data (factory reset).
  5. Review the summary of accounts and data that will be removed, then tap Erase all data.
  6. Enter your PIN, pattern or password to confirm it is really you.
  7. Tap the final Erase all data button. The phone restarts, wipes itself, and reboots to the welcome setup screen after a few minutes.

When you reach the initial language-and-Wi-Fi setup screen, the reset is complete and the phone is ready to set up fresh or hand on. The whole wipe usually takes only a few minutes, though restoring your data afterwards can take longer depending on how much there is and how fast your connection is.

Find the reset on Samsung, Pixel and Xiaomi

The destination is identical on every phone; only the signposting changes. Here are the paths for the most common brands so you are not hunting through menus.

  1. Samsung Galaxy: Settings > General management > Reset > Factory data reset, then scroll to the bottom and tap Reset, then Delete all.
  2. Google Pixel: Settings > System > Reset options > Erase all data (factory reset), matching the stock steps above.
  3. Xiaomi, Redmi and POCO: Settings > About phone > Factory reset (on some models it sits under Settings > Additional settings > Backup & reset).
  4. Any brand: if the wording differs, open Settings and type reset into the search bar at the top to jump straight to the right option.

If your menus still do not match, the search-bar trick almost always finds the correct screen regardless of the Android version or manufacturer skin.

Reset from recovery mode if you are locked out

When the screen is frozen, the phone will not boot, or you cannot get past a forgotten lock screen, you can still force a reset using the hardware buttons. The combination varies a little by brand, but the overall flow is the same.

  1. Power the phone off completely and unplug it.
  2. Hold the correct combination until a logo or menu appears, usually Power + Volume Up (some phones use Power + Volume Down, and a few older models add the Home button).
  3. Use the volume keys to move the highlight and the power key to select. Highlight Wipe data/factory reset and select it.
  4. Confirm Yes, wait for the wipe to finish, then highlight and select Reboot system now.

Be honest with yourself about FRP here: a recovery-mode wipe does not remove Factory Reset Protection. When the phone reboots it may still demand the last Google account that was signed in, which is exactly why removing that account beforehand matters so much. If you own the phone and know the login, you will sail through; if you do not, you will be stuck at that screen with no legitimate way around it.

What a factory reset does and does not erase

It helps to know precisely what disappears so there are no surprises afterwards.

  1. It erases all apps and their data, photos and videos on internal storage, downloaded files, accounts, messages, call logs and every personalised setting.
  2. It does not usually touch a separate microSD card, unless you specifically tick the option to format it during the reset. Remove the card first if you want to keep it.
  3. Anything you backed up to Google or another cloud is safe and syncs back down when you sign in again.
  4. A reset clears most malware, because it lives in installed apps, but it will not fix hardware faults, and infected data can return if you blindly restore an old backup, so reinstall apps fresh from the Play Store rather than restoring everything in one sweep.

To recap the safe order every time: back up, remove your Google account, then erase. Do those three in the right sequence and a factory reset leaves you with a genuinely clean phone and no nasty surprises left waiting at the setup screen.