Unlock Bootloader In Samsung International Smartphones 2016 To 2019 Products

How to Unlock Bootloader in Samsung International Smartphones of 2016 to 2019?

Unlocking and Relocking Bootloader is considered among two important topics in repairing Android devices (smartphones and tablets) in a way that if a device's Bootloader is not unlocked, using custom binary features such as Rooting, flashing Stock ROM, Custom Recovery, and even processes such as removing FRP and screen lock, repairing IMEI, fixing serial number and … and all the features offered by Software Boxes will not be possible!!!

Relocking Bootloader is bringing Bootloader back to factory state. What I mean by International devices is those devices which have letters such as F, C, M and some others after the Model Number. For example, SM-N960F is an International Model (because of the letter F at the end). But SM-N9600 is a model designed for China region because there is no letter at the end of the Model Number. It is also known by its 4 digit code. Its unlock method is different than international models of smartphones.

Model Numbers which end with letters below are international, thus you can unlock their Bootloader using the Unlock method for international devices:

F & FD & FN & FZ & M & MD & C & G & H & HM & HV & I & K & S & T & N

Model Numbers that end with letters below indicate that they are unique to specific regions, thus for unlocking their Bootloader you need to use Software Boxes and Dongles:
V & A & P

As I said, Model Numbers that end with V, A, or P (for example, SM-G955V) need to be unlocked using Software Boxes & dongles. In this article, I want to show you how to unlock Bootloader in international models of Samsung smartphones which are produced in 2018 and earlier. Models such as Samsung Galaxy J7, galaxy J5, galaxy S9, galaxy S9 plus and … Samsung has changed unlocking methods of these devices with those produced in 2019.

Before unlocking Bootloader, I recommend you read this:

• Unlocking Bootloader would result in warranty cancellation.

• Some Samsung international models which were made in 2016 and earlier are factory unlocked, thus they don’t need to be unlocked by users.

• This method is only used for devices made from 2016 to 2018. If you want to unlock Bootloader of a device which is made in 2019, please refer to this article:

 How to Unlock Bootloader in Samsung International Smartphones of 2019

• By unlocking your device using the instructions in this article (and NOT by Software Boxes), your data will NOT be wiped. So, don’t worry about losing your personal data stored on your cell phone or tablet. You can get a backup of personal/user data and store it on your PC or laptop, just in case!

• I recommend you to, first, read this article fully, then start unlocking.

• To unlock devices which are specially designed for T-Mobile, Sprint, and Verizon carriers (operators), you need to use Software Boxes such as Octoplus Box or dongles such as EFT Dongle because the present method (the instructions in this article) may not work on them, though it doesn't hurt to try!

• In case you want to unlock Bootloader of a device which has FRP Lock, and the Operating System (OS) boots up and you have access to Settings, you can remove the FRP Lock by unlocking using the instructions in this article. But if the OS does not boot up, first you need to remove the FRP Lock (read this article to learn how to remove FRP). Then, unlock Bootloader. 

• In case you want to unlock Bootloader of a device which has RMM State Lock, and the Operating System (OS) boots up and you have access to Settings, you can unlock its Bootloader by reading this article: 

Learn How To Unlock Bootloader of Device with RMM State Luck  

• If password, pin, pattern or finger print lock is enabled, please disable them. Meaning, set lock screen on "No Lock Screen":

Menu → Settings → Lock screen and Security → Screen lock type → Swipe

It's time to start Bootloader unlocking process:

1. Turn On your Android device and go to Settings=> Developer Options

(if you couldn't find Developer Options, go to:

Menu → Settings → About Phone → Software Information

And tap on "Build Number" 7 times. Developer Options would appear in Settings.)

2. In Developer Settings, enable OEM Unlock to be able to Unlock Bootloader. (Follow the instructions in the pictures)  

3. Tap on OEM Unlock and Enable it.

(Menu → Settings → Developer Options → OEM unlocking → ENABLE)

4. When OEM Unlock is enabled (like picture 10), it means that Bootloader of your device is unlocked.

Notice: when enabling OEM Unlock, if the device asks you for a password or pattern, please enter Lock Screen password/pattern of your device.

Good Luck!
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