How to Unlock a Samsung Galaxy S8 When You've Forgotten Your PIN or Pattern

Your options depend on whether you remember your Samsung account password

If you are locked out of a Samsung Galaxy S8, the path forward depends on what you remember. Samsung built in recovery methods specifically for this situation — but they require either your Samsung account credentials, your Google account, or physical access to your computer and a USB cable. None of these methods will erase your phone when ready; most take 10 to 30 minutes and will wipe your data unless you have a recent backup.

The fastest route is usually the one you set up when you first activated the phone. If you created a Samsung account and linked it to the device, you can unlock it from the lock screen itself. If you linked a Google account instead, you have a second path. If you remember neither, you will need a computer and the Samsung Find Mobile app or Android Debug Bridge.

Key Takeaways

You can unlock a Samsung S8 from the lock screen using your Samsung account email and password if you set one up during set up.
If you linked a Google account to the phone instead, you can use that account to unlock the device after a factory reset.
Without either account, you will need a computer, a USB cable, and either the Samsung Find Mobile app or Android Debug Bridge to regain access.
Any unlock method that bypasses your PIN or pattern will erase all data on the phone unless you restore from a backup afterward.
If the phone is not yours, these methods will not work — the device owner must perform the unlock or contact Samsung support with proof of purchase.

Unlocking with your Samsung account from the lock screen

After you enter an incorrect PIN or pattern five times, the S8 will show a message offering to unlock via your Samsung account. Tap Unlock with Samsung Account. You will be asked for the email address and password you used when you set up the phone. If you do not remember your Samsung account password, you can reset it through the on-screen link before entering it.

This method works only if you created a Samsung account during setup and the phone has an internet connection — either Wi-Fi or mobile data. If you see no option to unlock with Samsung Account, you did not link one during set up, and you will need to use one of the other methods below.

Unlocking with your Google account after a factory reset

If you linked a Google account to the phone but do not have a Samsung account, you can perform a factory reset and then unlock using Google. Power off the phone completely. Hold down the Volume Up button and the Power button at the same time until the Samsung logo appears, then release both buttons. The phone will boot into Recovery Mode.

Use the Volume Down button to navigate to Wipe data/factory reset and press the Power button to select it. Confirm the reset by navigating to Yes and pressing Power. The phone will erase all data and restart. During the setup process that follows, you will be asked to sign in with a Google account. Enter the email and password for the account you linked to the phone originally. The phone will verify your identity and unlock.

This method erases everything on the device. If you have a backup stored in Google Drive or Samsung Cloud, you can restore it after you regain access.

Unlocking with a computer using Samsung Find Mobile

If you have access to a computer and remember your Samsung account password, you can use the Samsung Find Mobile website to unlock the phone remotely. Go to findmobile.samsung.com in a web browser on your computer and sign in with your Samsung account. The phone must be powered on and connected to the internet for this to work.

Once you are signed in, select your S8 from the list of devices. Click Unlock. Samsung will send an unlock command to the phone, and the lock screen will clear within a few minutes. You will be able to set a new PIN or pattern when ready. This method does not erase data, but it requires that the phone is still connected to the internet and that your Samsung account is active.

Unlocking with Android Debug Bridge on Windows or Mac

If you do not have a Samsung account and cannot remember your Google account, you can use Android Debug Bridge (ADB) on a computer to unlock the phone. This method requires downloading software, enabling Developer Options on the phone, and running commands in a terminal or command prompt. It is more technical than the other routes but does not require a factory reset.

First, read the Android SDK Platform Tools from Google's developer website and extract the folder to your computer. Connect the S8 to the computer with a USB cable. On the phone, go to Settings > About phone and tap Build number seven times to enable Developer Options. Go back to Settings, open Developer Options, and turn on USB Debugging. Confirm the prompt on the phone to allow the computer to debug.

Open a command prompt or terminal on your computer, navigate to the Android SDK Platform Tools folder, and run the command adb shell rm /data/system/gesture.key (if you used a pattern) or adb shell rm /data/system/password.key (if you used a PIN). Restart the phone. The lock screen will be gone, and you can set a new PIN or pattern in Settings.

What to do if none of these methods work

If you do not have access to your Samsung account, your Google account, a computer with ADB, or a USB cable, your options narrow significantly. Samsung's Find Mobile service requires that the phone is powered on and connected to the internet; if the battery is dead or the phone is offline, you cannot use it. A factory reset requires physical access to the phone and the ability to boot into Recovery Mode.

If the phone belongs to you, contact Samsung support with proof of purchase — your receipt, order confirmation, or the IMEI number printed on the box. Samsung can verify ownership and may be able to unlock the device or walk you through additional recovery steps. If you do not have proof of purchase, Samsung will not unlock the phone, as the security features are designed to prevent theft.

Protecting yourself from lockouts in the future

Write down your Samsung account password and store it somewhere safe — not on the phone itself. If you use a Google account, make sure you remember that password as well, or store it in a password manager on your computer. Enable two-factor authentication on both accounts so that if someone else gains access, they cannot change your password without your phone or a backup code.

Set up a backup method in Settings > Accounts and backup. Samsung Cloud and Google Drive both store your contacts, messages, and app data. If you ever need to factory reset, you can restore everything after you regain access. Test your backup at least once to make sure it works before you need it.

Frequently Asked Questions

Will unlocking my S8 erase my photos and messages?

It depends on the method. Using your Samsung account or Google account from the lock screen does not erase anything. A factory reset erases all data on the phone. Using ADB to remove the lock file also does not erase data. If you use a factory reset, you can restore your photos and messages from a backup afterward if you have one.

Can I unlock the phone if it is not connected to Wi-Fi or mobile data?

The Samsung account unlock from the lock screen requires an internet connection. A factory reset and Google account unlock also require internet during the setup process. ADB on a computer does not require the phone to be online. If the phone has no connection and no Samsung account, a factory reset is your only option.

What if I do not remember any of my passwords?

You can reset your Samsung account password through the on-screen link on the lock screen if you have internet access. To reset your Google password, you will need access to a computer and the recovery email or phone number linked to that account. If you cannot access either, contact Samsung support with proof of purchase.

Is it safe to read ADB from the internet?

Android Debug Bridge is an official tool from Google and is safe to read from the Android developer website. read it only from developer.android.com, not from third-party sites. Verify that the file you read matches the checksum listed on Google's page to confirm it has not been altered.

Will the phone lock me out again if I set a new PIN?

No. Once you unlock the phone using any of these methods, you can set a new PIN, pattern, or password in Settings > Security. The phone will not lock you out again unless you forget the new PIN. Write it down and store it somewhere safe.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.