[2025 Guide]How to Enable OEM Unlock via ADB on Samsung?

To unlock the bootloader on a Samsung device, OEM Unlock must be enabled. If the option is missing, ADB (Android Debug Bridge) can help.

This guide provides a step-by-step method to enable OEM Unlock via ADB on Samsung, along with a bonus tip for bypassing screen locks.

Part 1. What is OEM Unlock on Samsung?

OEM Unlock is a setting that allows users to unlock the bootloader, giving them full control over their Samsung device. By default, Samsung keeps the bootloader locked to prevent unauthorized modifications, but unlocking it is necessary for rooting, installing custom ROMs, or making system-level changes.

Risks of Enabling OEM unlock:

However, unlocking the bootloader comes with risks, such as

• Voids warranty on most Samsung devices.
• Disables security features like Samsung Knox.
• May cause boot loops or bricking if done incorrectly.

Part 2. What to Do Before Enabling OEM Unlock?

Before enabling OEM Unlock, make sure you meet these requirements to avoid data loss or device issues.

• Backup Your Data – Unlocking the bootloader may reset your device, so save important files using Samsung Cloud, Google Drive, or a PC.
• Charge Your Device – Ensure at least 50% battery to avoid interruptions that could cause boot issues or bricking.
• Enable Developer Options – Go to Settings > About Phone > Software Information and tap Build Number seven times to activate Developer Mode.
• Install ADB & Fastboot on Your PC – Download and set up ADB and Fastboot tools, which are necessary for running OEM Unlock commands.

Part 3. How to Enable OEM Unlock via ADB on Samsung

Now that your device is prepared, follow these steps to enable OEM Unlock on your Samsung device.

• Open Settings > About Phone > Software Information and tap Build Number seven times until Developer Mode is activated.

• Go to Settings > Developer Options, then turn on USB Debugging and enable OEM Unlock (if visible).

• Download ADB & Fastboot tools and install them. These tools are required to run the necessary commands.

• Connect your Samsung device to computer with an USB cable. When prompted on your phone, allow USB Debugging access.

• Open Command Prompt (Windows) or Terminal (Mac/Linux) and enter: adb devices. The your device will appears in the list.

• Enter the following command to reboot your device into Fastboot mode: adb reboot bootloader.

• Once in Fastboot mode, enter ‘fastboot oem unlock’. If a confirmation message appears, use the volume buttons to select Yes and confirm with the power button.

• Reboot your device and go to Developer Options to check if OEM Unlock is now enabled.

Once completed, your device’s bootloader will be unlocked, allowing you to proceed with further modifications.

Part 4. Pros and Cons of of Unlocking the Bootloader

Unlocking the bootloader gives you greater control over your Samsung device, but it also comes with potential risks. Before proceeding, consider the following benefits and drawbacks.

Pros

• Replace Samsung’s default software with a custom ROM like LineageOS or Pixel Experience for better performance
• Gain full control over system files, allowing advanced modifications and customization.
• Uninstall pre-installed apps that can't be removed on a locked device.

Cons

• Unlocking often permanently voids your Samsung device’s warranty.
• If done incorrectly, your device may enter a boot loop or become unresponsive.
• Some Samsung devices may no longer receive official software updates.

Bonus Tip: Bypass Samsung Screen Locks and FRP without Data Loss

Forgetting your screen lock password or being stuck on Google’s Factory Reset Protection (FRP) lock can be frustrating, especially if you don’t remember your Google account credentials. This often happens after a factory reset, leaving users unable to access their own devices.

This is where FoneGeek Android Passcode Unlocker comes in. This professional unlocking tool can remove screen locks, PINs, patterns, fingerprints, and FRP locks without data loss. If you're locked out of your Samsung device, LockWiper provides a straightforward way to regain access in just a few clicks.

1. Install FoneGeek Android Passcode Unlocker on your Windows or Mac computer.

2. Open this program and select "Remove Screen Lock" mode.

3. Use a USB cable to connect your device to computer. Follow the on-screen instructions to enter your device information.

4. Click “Start” and wait for the process to finish.

After that, your Samsung device will restart without the Google account lock, allowing you to set it up as new.

Final Thoughts & Warnings

Enabling OEM Unlock via ADB is a great way to gain control over your Samsung device, but it comes with risks. Ensure you backup your data, follow the steps carefully, and use trusted tools like FoneGeek Android Passcode Unlocker if you need to bypass FRP or screen locks.

If you plan to install custom ROMs or root your device, research thoroughly before proceeding.

FAQs

Q1. Can I enable OEM Unlock without Developer Options?

No, you must enable Developer Options first. If the option is missing, wait 7 days after a factory reset or use the ADB method.

Q2. How can I check if my device is eligible for OEM unlocking?

Go to Developer Options and check if OEM Unlock is available. Some carrier-locked models do not support it.

Q3. Will I still receive official software updates after unlocking the bootloader?

In most cases, OTA updates may stop working after unlocking the bootloader. You may need to install updates manually using custom ROMs or firmware flashing tools.

Q4. Does unlocking the bootloader affect battery life?

Not directly, but installing custom ROMs, kernels, or overclocking the CPU can impact battery performance. If done incorrectly, your battery may drain faster or overheat.

Q5. Can I use FoneGeek Android Passcode Unlocker to unlock other Android brands?

Yes! While FoneGeek Android Passcode Unlocker is popular for Samsung, it also supports brands like LG, Huawei, Motorola, Xiaomi, and more.