How to Unlock Bootloader on Samsung Galaxy Z Fold 3? OEM Unlock!

The Samsung Galaxy Z Fold 3 is a cutting-edge smartphone that offers a unique foldable design and powerful performance. However, like many Android devices, the bootloader on the Samsung Galaxy Z Fold 3 is locked by default. Unlocking the bootloader can provide users with more control over their device, allowing them to customize the software, install custom ROMs, and gain root access. In this article, we will guide you through the process of unlocking the bootloader on the Samsung Galaxy Z Fold 3.

What is a Bootloader?

Before we dive into the process of unlocking the bootloader, let’s first understand what a bootloader is. In simple terms, a bootloader is a piece of software that runs when a device is powered on. It initializes the hardware and loads the operating system. The bootloader also plays a crucial role in the security of the device, as it verifies the integrity of the operating system before loading it.

Manufacturers often lock the bootloader on their devices to prevent users from making unauthorized changes to the software. This is done to maintain the stability and security of the device. However, for advanced users who want to explore the full potential of their device, unlocking the bootloader is essential.

Why Unlock the Bootloader on Samsung Galaxy Z Fold 3?

Unlocking the bootloader on the Samsung Galaxy Z Fold 3 comes with several benefits:

• Customization: By unlocking the bootloader, you can install custom ROMs and modify the software to suit your preferences. This allows for a more personalized user experience.
• Root Access: Rooting your device gives you administrative access to the Android operating system. This enables you to make system-level changes and install powerful apps that require root permissions.
• Performance Optimization: With an unlocked bootloader, you can optimize the performance of your Samsung Galaxy Z Fold 3 by tweaking various system settings and removing bloatware.
• Advanced Features: Unlocking the bootloader opens up possibilities for using advanced features and functionalities that are not available on the stock firmware.

Prerequisites for Unlocking the Bootloader

Before you proceed with unlocking the bootloader on your Samsung Galaxy Z Fold 3, there are a few prerequisites that you need to fulfill:

• Backup: Unlocking the bootloader wipes all the data on your device. It is crucial to create a backup of your important files, photos, and documents before proceeding.
• Charge: Ensure that your device has sufficient battery level to complete the process. It is recommended to have at least 60% battery before starting.
• USB Debugging: Enable USB debugging on your Samsung Galaxy Z Fold 3. To do this, go to Settings > Developer options > USB debugging and toggle the switch to enable it.
• OEM Unlock: Enable OEM unlocking on your device. This option is necessary to unlock the bootloader. To enable it, go to Settings > Developer options > OEM unlocking and toggle the switch to enable it.
• Unlock Token: In order to unlock the bootloader, you will need an unlock token from Samsung. This token is unique to each device and is required to validate the unlocking process.

Step-by-Step Guide to Unlock Bootloader on Samsung Galaxy Z Fold 3

Now that you have fulfilled the prerequisites, let’s dive into the step-by-step process of unlocking the bootloader on your Samsung Galaxy Z Fold 3:

Step 1: Enable Developer Options

Before you can proceed with unlocking the bootloader, you need to enable Developer options on your device. To do this:

1. Go to Settings on your Samsung Galaxy Z Fold 3.
2. Scroll down and tap on “About phone”.
3. Find the “Build number” and tap on it seven times. This will enable Developer options on your device.

Step 2: Enable USB Debugging and OEM Unlocking

Now that you have enabled Developer options, you need to enable USB debugging and OEM unlocking:

1. Go back to the main Settings menu and tap on “Developer options”.
2. Scroll down and find the “USB debugging” option. Toggle the switch to enable it.
3. Scroll further and find the “OEM unlocking” option. Toggle the switch to enable it. You may be prompted to enter your device password or PIN to confirm the action.

Step 3: Connect to a Computer

Next, you need to connect your Samsung Galaxy Z Fold 3 to a computer using a USB cable:

1. Connect one end of the USB cable to your Samsung Galaxy Z Fold 3.
2. Connect the other end of the USB cable to a USB port on your computer.

Step 4: Boot into Download Mode

In order to proceed with unlocking the bootloader, you need to boot your Samsung Galaxy Z Fold 3 into Download Mode:

1. Power off your device.
2. Press and hold the Volume Down button and the Power button simultaneously.
3. Release the buttons when the Samsung logo appears.
4. When prompted, press the Volume Up button to enter Download Mode.

Step 5: Obtain the Unlock Token

Now that your Samsung Galaxy Z Fold 3 is in Download Mode, you need to obtain the unlock token from Samsung:

1. Open a web browser on your computer and go to the Samsung Developer website.
2. Sign in with your Samsung account credentials.
3. Navigate to the Unlock Bootloader page.
4. Follow the instructions provided to obtain the unlock token for your Samsung Galaxy Z Fold 3. This process may vary depending on your region and carrier.

Step 6: Unlock the Bootloader

With the unlock token in hand, you are ready to unlock the bootloader on your Samsung Galaxy Z Fold 3:

1. Copy the unlock token to your computer’s clipboard.
2. Open a command prompt or terminal window on your computer.
3. Enter the following command to unlock the bootloader, replacing “UNLOCK_TOKEN” with the actual token you obtained in the previous step:

fastboot oem unlock UNLOCK_TOKEN

Step 7: Confirm Bootloader Unlock

After executing the command, you will see a confirmation screen on your Samsung Galaxy Z Fold 3. Use the Volume Up button to highlight “Unlock bootloader” and press the Power button to confirm.

Step 8: Reboot the Device

Once the bootloader is unlocked, you need to reboot your Samsung Galaxy Z Fold 3:

1. Enter the following command to reboot the device:

fastboot reboot

Your Samsung Galaxy Z Fold 3 will now reboot with an unlocked bootloader. You have successfully unlocked the bootloader on your device!

Conclusion

Unlocking the bootloader on the Samsung Galaxy Z Fold 3 opens up a world of possibilities for customization and advanced features. However, it is important to note that unlocking the bootloader voids the warranty of your device and can potentially cause stability or security issues if not done correctly. It is recommended to proceed with caution and follow the instructions carefully.

By following the step-by-step guide outlined in this article, you should be able to unlock the bootloader on your Samsung Galaxy Z Fold 3 successfully. Remember to back up your data before proceeding and ensure that you have the necessary prerequisites in place.

FAQs

1. Does unlocking the bootloader void the warranty of the Samsung Galaxy Z Fold 3?

Yes, unlocking the bootloader voids the warranty of the Samsung Galaxy Z Fold 3. It is important to understand the risks involved before proceeding with the unlocking process.

2. Can I relock the bootloader after unlocking it?

No, once the bootloader is unlocked, it cannot be relocked. Unlocking the bootloader permanently alters the device’s software and cannot be reversed.

3. Is it legal to unlock the bootloader on the Samsung Galaxy Z Fold 3?

Unlocking the bootloader is generally legal, but it may void the warranty and violate the terms of service of your device. It is recommended to check your local laws and the terms and conditions provided by the manufacturer before unlocking the bootloader.

4. Will unlocking the bootloader improve the performance of my Samsung Galaxy Z Fold 3?

Unlocking the bootloader itself does not directly improve the performance of the Samsung Galaxy Z Fold 3. However, it allows advanced users to make system-level changes and optimizations that can potentially enhance the device’s performance.

5. Can unlocking the bootloader on the Samsung Galaxy Z Fold 3 cause any issues?

Unlocking the bootloader can potentially cause stability or security issues if not done correctly. It is important to follow the instructions carefully and understand the risks involved before proceeding.

Summary

Unlocking the bootloader on the Samsung Galaxy Z Fold 3 can provide users with more control over their device, allowing for customization, root access, performance optimization, and access to advanced features. However, it is important to note that unlocking the bootloader voids the warranty and can potentially cause stability or security issues. By following the step-by-step guide provided in this article and fulfilling the necessary prerequisites, you can successfully unlock the bootloader on your Samsung Galaxy Z Fold 3.

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