What wiping your Samsung phone means and when to do it

Wiping your Samsung phone erases all data on the device — contacts, photos, messages, apps, and settings — and returns it to factory condition. This is different from a regular restart. A factory reset removes everything except the operating system itself.

You should wipe your phone before selling it, giving it away, or trading it in. You may also wipe it if the phone is running slowly, crashing repeatedly, or infected with malware. Once you start the process, you cannot stop it or recover the data afterward, so back up anything you want to keep first.

Samsung phones can be wiped in two main ways: through the Settings menu on the phone itself, or through Find My Mobile if you cannot access the phone. The Settings method is fastest and works when the phone powers on normally.

Key Takeaways

  • Back up your photos, contacts, and files to Google Drive, Samsung Cloud, or your computer before wiping, because the process erases everything permanently.
  • The fastest method is Settings > General Management > Reset > Factory Data Reset, which takes five to ten minutes on most Samsung phones.
  • You will need your Samsung account password or Google account password to complete the reset, depending on which account is linked to the phone.
  • If your phone will not turn on or respond, use Find My Mobile from a computer to wipe it remotely without touching the phone itself.
  • After the wipe completes, the phone will restart and ask you to set it up as new, which takes another five to ten minutes.

Back up your data before you start

Before wiping, move any files you want to keep off the phone. The most common backup methods for Samsung phones are Google Drive, Samsung Cloud, and your computer.

Google Drive backs up contacts, calendar events, and some app data automatically if you are signed into a Google account on the phone. To check what is backed up, open Settings, search for "Backup", and tap "Google account". Photos and videos do not back up to Drive by default — you must open the Google Photos app and turn on backup there separately.

Samsung Cloud backs up contacts, messages, settings, and some app data if you have a Samsung account. Open Settings, search for "Samsung Cloud", and tap "Backup" to see what is stored and start a new backup. Samsung Cloud gives you 15 GB of free space.

Your computer is the safest option for photos and videos. Connect your Samsung phone to a Windows PC or Mac with a USB cable, open File Explorer or Finder, and drag your photos and videos to a folder on your computer. This method does not depend on cloud storage or internet speed.

Wipe your phone through Settings

This method works on any Samsung phone that turns on and responds to touch. The exact menu names vary slightly by model and Android version, but the path is the same on most phones made in the last five years.

Open Settings and scroll down to find General Management (some older phones call this "About phone" or "System"). Tap it. Look for Reset or Reset options and tap it. You will see several reset choices — tap Factory Data Reset or Erase all data.

The phone will ask you to confirm. Read the warning carefully — it will list what will be erased. Tap the button to confirm (usually labeled "Reset" or "Erase"). The phone may ask for your PIN, pattern, or password to prove you own it. Enter it.

The wipe process takes three to ten minutes. The phone will restart several times and show a progress bar. Do not turn off the phone or remove the battery during this time. When it finishes, the phone will restart and show the initial setup screen, as if it just came from the factory.

What happens after the wipe is complete

Once the factory reset finishes, your Samsung phone will boot into the setup wizard. You will be asked to choose a language, connect to Wi-Fi, and sign into a Google account. You do not have to sign in — you can skip these steps and use the phone without an account — but most people sign in so their apps and contacts restore automatically.

If you are selling or giving away the phone, do not sign into any account. Leave it at the setup screen so the new owner can set it up with their own account. If you are keeping the phone, sign in with your Google account and let it restore your contacts, calendar, and app list from backup.

The phone will be noticeably faster after a factory reset because it no longer has years of cached data, temporary files, and background processes slowing it down. Apps will take a moment to reinstall if you signed into Google, but this usually completes within an hour depending on your internet speed.

Wipe your phone remotely with Find My Mobile

If your Samsung phone will not turn on, is locked with a pattern or password you forgot, or is not responding to touch, you can wipe it from a computer using Samsung's Find My Mobile service.

Go to findmymobile.samsung.com in a web browser on any computer. Sign in with the Samsung account that is linked to the phone. If you do not have a Samsung account or do not remember the password, you will not be able to use this method — you will need to contact Samsung support or visit a carrier store.

Once you are signed in, Find My Mobile will show a list of devices linked to your account. Click the phone you want to wipe. Look for the option labeled Unlock, Wipe, or Factory Reset (the exact name depends on your phone model and the current state of the device). Click it and confirm.

The phone does not need to be powered on for this to work, but it must be connected to the internet at some point in the next few days for the command to reach it. If the phone is off, the wipe will happen the next time it connects to Wi-Fi or mobile data. This method takes longer than wiping through Settings because it depends on the phone receiving the command.

Wipe your phone if you forgot your password

If you forgot the PIN, pattern, or password that locks your Samsung phone, you have three options: use Find My Mobile (described above), sign in with your Google account, or contact Samsung support.

If the phone is asking for a PIN or pattern and you do not remember it, you can usually tap "Forgot pattern?" or "Forgot PIN?" on the lock screen. This will ask you to sign in with your Google account instead. Once you sign in, the phone will let you set a new PIN or pattern, and you can then wipe it normally through Settings.

If there is no "Forgot" option on your lock screen, or if you also forgot your Google password, use Find My Mobile from a computer as described in the section above. If you do not have a Samsung account or cannot access Find My Mobile, you will need to visit a Samsung service center or your phone carrier's store with proof of ownership (receipt, ID, or account information).

Wipe your phone before selling or trading it in

Always wipe your phone before handing it to someone else, even if you are trading it in at a carrier store or selling it to a recycler. A factory reset removes your personal data, but it does not remove your Samsung account or Google account from the phone — the new owner will see those accounts on the setup screen.

After you wipe the phone, do not sign back into your accounts. Leave the phone at the setup screen. The new owner can then set it up with their own accounts. If you sign back in, the new owner will not be able to use the phone without your password.

If you are trading the phone in at a carrier store or manufacturer, ask them whether they wipe phones themselves or expect you to do it. Most major carriers and retailers wipe phones as part of their trade-in process, but it is safer to wipe it yourself first so you know your data is gone.

Frequently Asked Questions

Can I undo a factory reset after I start it?

No. Once you tap the final confirmation button, the wipe begins and cannot be stopped. The only way to recover your data is from a backup you made before the wipe. This is why backing up first is essential.

Will the factory reset remove my Samsung account from the phone?

The reset erases all data and settings, but it does not remove the Samsung account or Google account linked to the phone. After the wipe, the setup screen will still show those accounts. If you are selling the phone, do not sign back in — the new owner will need to remove those accounts with your password before they can use the phone.

How long does a factory reset take?

The wipe itself usually takes three to ten minutes depending on how much data is on the phone. The phone will restart several times during this process. After it finishes, the setup wizard takes another five to ten minutes if you sign into an account and let it restore your apps and contacts.

Do I need Wi-Fi to wipe my phone?

No. Wiping through Settings does not require an internet connection. However, if you use Find My Mobile to wipe remotely, the phone must connect to Wi-Fi or mobile data at some point for the command to reach it.

What if my phone is stuck on the setup screen after the wipe?

This usually means the phone is waiting for you to sign into a Google account. If you do not want to sign in, look for a "Skip" button or swipe left to move past that screen. If the phone will not let you skip, try signing in with any Google account, then remove that account from Settings after setup is complete.