How To Erase Samsung Phone | Safe Factory Reset Guide

A factory data reset via Settings or Recovery Mode erases all personal data on a Samsung Galaxy device, preparing it for resale or resolving software issues.

Planning to sell, trade in, or recycle an old Galaxy phone? Skipping the proper wipe process is the fastest way to hand your photos, bank apps, and personal accounts to a stranger. A factory data reset (sometimes called a hard reset or master reset) is the only way to guarantee the device returns to a clean, out-of-box state. The exact procedure depends on whether the phone is working normally or completely locked. Below is the full breakdown, including the critical prep step that prevents the dreaded Factory Reset Protection (FRP) lock from bricking the device for its next owner.

What To Do Before Erasing Your Samsung Device

Diving straight into the reset menu without preparation is the most common and costly mistake. A few minutes of prep prevents permanent data loss and account lockouts.

• Back up your personal data. Save photos, contacts, and app data to Samsung Cloud, Google Drive, or a PC using Smart Switch. This step is impossible once the reset begins.
• Remove every linked account. Navigate to Settings > Accounts and backup > Manage accounts. Tap each Google and Samsung account listed and select Remove account. This is the only reliable way to disable FRP.
• Charge the battery. Ensure the phone is charged to at least 70%. A power failure mid-reset can corrupt the operating system and leave the device in an unusable state.

How To Factory Reset Through Settings (Working Phone)

This is the standard, stable path for any Galaxy phone that is powered on and unlocked. It is the recommended method for pre-sale preparation.

1. Open Settings and tap General Management.
2. Tap Reset, then select Factory data reset.
3. Scroll through the list of apps and data that will be erased. This is your last chance to verify a backup exists.
4. Tap Reset at the bottom of the screen.
5. Enter your device PIN, pattern, or password to authorize the action.
6. If a Samsung Account is linked to the device, enter the Samsung Account password to verify your identity.
7. Tap Delete all. The device will restart automatically and boot directly into the initial setup screen when the erase is complete.

How Do I Erase A Locked Samsung Phone?

If the screen is frozen or you have forgotten the unlock credentials, the settings menu is inaccessible. Recovery Mode lets you perform the reset directly from the system firmware, bypassing the normal boot process.

1. Power off the device completely. If the screen is locked and unresponsive, hold Volume Down + Power for 7–10 seconds until the screen goes black.
2. Press and hold Volume Up + Power (Side button) simultaneously. Note for older devices with a physical Home button (Galaxy S6, S7, S8): use Volume Up + Home + Power instead.
3. When the Samsung logo flashes on the screen, release the Power button but continue holding Volume Up.
4. Release all buttons when the Android Recovery menu appears (usually after 10–15 seconds).
5. Use the Volume Down button to highlight Wipe data/factory reset.
6. Press the Power button to select it.
7. Use Volume Down to highlight Yes (or “Factory data reset”) and press Power to confirm the action.
8. Wait for the process to finish. The screen will display a “Data wipe complete” message.
9. Select Reboot system now. The phone will restart and land on the Welcome screen, confirming a successful erase.

How To Remotely Wipe A Lost Samsung Phone

Samsung’s SmartThings Find service allows you to erase a device you no longer physically have. This is a last-resort measure for protecting sensitive data on a lost or stolen phone.

1. Go to the SmartThings Find website on a computer or another device and sign in to the same Samsung Account that was on the lost phone.
2. Select the lost device from the list of registered devices.
3. Click the Erase data option.
4. Verify your identity using a one-time code sent to another trusted device or phone number. This action permanently deletes all data on the remote device, even if the phone is offline at the moment the command is sent (it will execute when it reconnects).

For official confirmation of the exact button sequences and menu paths used above, refer to Samsung’s official factory reset documentation.

Common Factory Reset Mistakes And How To Fix Them

Even with clear instructions, specific errors can block the process. Below are the most frequent issues and their direct solutions.

How To Erase Samsung Phone: Final Safety Checklist

A successful wipe leaves the phone sitting cleanly on the Welcome screen, free of your personal data and accounts. Run through this checklist before handing the device over.

• [ ] Photos, contacts, and app data backed up to Google Drive or Samsung Cloud.
• [ ] All Google and Samsung accounts removed from the device.
• [ ] Battery charged above 70%.
• [ ] Device encryption is active (Settings > Security > Encrypt phone) for an added layer of permanent data scrambling.
• [ ] “Data wipe complete” message was displayed, and the device is now at the initial setup screen.

Following these steps exactly ensures the next tap on the screen belongs to its new owner, not an unwelcome peek at your old data.