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How to Unlock Bootloader On Samsung Galaxy Devices

 How to Unlock Bootloader on Samsung Devices

If you’re venturing into software modifications such as Rooting, installing custom recoveries, flashing custom ROMs, or anything else in between, then you will first need to unlock your Samsung device’s bootloader.

In this article, I have shown you the complete steps to unlock the bootloader of any Samsung Galaxy smartphones.

What is Unlock Bootloader Overview ?



 The Bootloader is the tool that loads the system software on the device and determines the priority for processes that run on the phone.

A device bootloader is a program that starts when the device is powered on to choose and run the operating system on our device every time we boot our handset. It basically tells the operating system and kernel to run the recovery mode or initiate the boot process in the system. It’s also worth mentioning that the device bootloader can be found on each operating system running devices or gadgets like smartphones, tablets, PCs, etc.

Advantages Of Unlocking Bootloader

Bootloader is like security software for your device, it'll prevent your device from loading a software or code which aren't properly signed. So, by unlocking it, you can do vice-versa. You can load all stuff that aren't allowed by your bootloader.
in this term and simple words, by unlock bootloader you can do:
  • Flash Custom ROMs
  • Install a Custom Recovery (TWRP)
  • Install Root access ( Super SU Magisk...)

Disadvantages of Unlocking Bootloader

  • It will allow unauthorized access to your device due to third-party installs.
  • It will block access to secured apps like Paytm, other banking apps, Netflix, etc.
  • It may cause a loss of your data and will make your phone broken if loading is not done properly.
  • By unlocking the device bootloader, your device warranty may avoid.

  • You may not experience a similar device performance.
  • Handset privacy or security measures my get affected.

Steps to Unlock Bootloader On Samsung Devices

Method 1: Unlock Bootloader without PC (Recommended)

If your Samsung Galaxy handset runs on MediaTek chipsets or Qualcomm or Exynos processors in Asia or Europe or the China region, it’s quite easy to unlock the device bootloader or enable OEM Unlock.

  • First, enable the Developer options on your Galaxy device.
  • Go to the phone Settings menu.
  • Scroll down to the bottom part and tap on the About Phone section > tap on Build Number 7 times continuously.
  • Then go back to the main Settings menu again and scroll down a little bit.
  • Tap on the Developer options > turn on the toggle OEM Unlock.


  • All done by HOW TO GSM. Enjoy!

Method 2: Unlock Bootloader via PC ( ADB & Fastboot )

Sometimes, the device manufacturer doesn’t allow to unlock the device bootloader easily. You may have to get permission and get the code from your manufacturer at first. However, if you get the code, follow the steps mentioned below:
  • First of All, Download 15 Seconds ADB Installer. You can download this Installer from here on your PC.
  • Extract the Installer after downloading. Click on Yes to open the Installer. After then you will see this screen.
  • Press “Y” to Install ADB and FastBoot. Then Press Enter.

  • Press "Y" again.
  • you will ask to install the drivers for the device. For this Press “Y” Again.

  • Click on Next to install the drivers for your Samsung Device.
  • Connect Samsung device with PC and start unlocking bootloader.
  • Open Command Prompt.
  • Go to the folder where you have installed ADB and fastBoot. You will usually see in the C:\adb Folder If your Windows is installed in C. Otherwise, Use the search option to find the ADB Folder.

    • Hold Shift Key and do Right-Click.
    • You will see a Command Prompt option or Powershell Option.

  • Type the following command in CMD:
adb devices 
You may get a pop up to allow USB Debugging on your phone. Just tap on the OK button.
adb reboot bootloader 
Now, your phone reboots into bootloader mode, check if your phone is showing the locked bootloader or not. If yes, then type and press enter the below command:
fastboot devices 
Your device fastboot number will appear on the ADB & Fastboot screen. That means you’re ready to proceed. If not, then try the process again properly.
  • Once your phone is recognized, follow the next command:
fastboot oem unlock 
  • You’re done. To reboot your device into the main system, type the following command and hit enter button:
fastboot reboot
  • Finally, your phone will reboot into the system. Wait for the complete boot process.
  • All done, Enjoy!
If you’re facing any issues, feel free to ask in the comments below.

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