OEM Unlock is protection in Samsung Galaxy Z Flip4 5G (SC-54C, SCG17, SM-F7210, SM-F721B, SM-F721C, SM-F721N, SM-F721U, SM-F721U1, SM-F721W) running OS Android 5, 6, 7, 8, 9, 10, 11, 12, or Android 13, and later, which is usually a step that users must enable in order to officially unlock their device’s bootloader. In Samsung Android ONE UI 2, ONE UI 3.0, ONE UI 4.0, 4.1.1, ONE UI 5, ONE UI 5.1, and later, Google implemented a security feature that prevents someone from unlocking. the bootloader of your Samsung Android device.
The idea behind this is in case your smartphone or tablet is stolen. If your device’s bootloader is unlockable, then all a thief would have to do is execute some ADB commands and then flash a custom recovery to perform a factory reset. This allows a thief to sell your device because it will be in working order. With OEM Unlock protection in our phones, a thief couldn’t do this unless they had your password/pattern/pin code and couldn’t log into the phone to activate this simple feature.
It’s a very simple and small feature and has kept thousands (if not millions) of people’s stolen phones and tablets from being stolen and sold quite easily. For you or me, the people who actually own our phones and tablets, it’s easy for us to go into the Samsung settings and enable it to unlock the bootloader of our devices.
Note – If you don’t plan to flash anything with your bootloader, don’t enable it and reboot your phone or you’ll be locked out!
What does OEM Unlock Mean?
In general, OEM Unlock is a feature added to the Android OS’s Developer Options menu. This feature has been added to the settings that the user must enable before unlocking the bootloader of her Android device. Android’s bootloader, when unlocked, unlocks the device’s rooting capabilities if he was limited to one carrier at the time of purchase.
The simple function of the OEM Unlock tab in the Developer Options menu is to allow the Fastboot Flashing Unlock command to run. Neither Google nor his Samsung Android OEM brand of devices wants to tweak the system more than intended, so you won’t see this option.
Why enable OEM Unlock?
In all fairness to Google, there aren’t many features that Google tries to hide. Also, you should understand that there is a reason for that, as it is hidden in the OEM unlock. A locked bootloader’s primary function is to verify software signatures every time the mobile device boots. Unlocking the bootloader essentially lets you skip the initial security checks, opening the door for techniques like rooting and installing custom firmware.
Whether you want to root your Samsung Android device for complete control or install new custom firmware on an older device, unlocking the bootloader is the first step in everything. Whether you just want to gain superuser access, flash a custom ROM on your device, modify the kernel, or install modules to improve your experience, it all starts with unlocking the bootloader. increase. Even if you want to install a custom recovery like TWRP, you need to unlock your device’s bootloader first. This all starts with his OEM unlock option in the developer options menu.
How to OEM Unlock Samsung Galaxy Z Flip 4 5G?
As mentioned earlier, the OEM Unlock option is hidden in the Developer Options menu screen. By default, it does not show itself. So, you have to enable the developer options screen first, then find the OEM unlock option and turn it on.
Step 1: Enable Developer Options
To get past the thin veil put in front of the Developer Options before you can access it, here’s what you need to do:
- From the home screen of your Samsung Galaxy Z Flip4 5G device, head over to the “Settings” option.
- Scroll all the way down to find the “About phone” tab and select “Software Information“.
- Scroll down to find the Build number section and tap on it 7 times until you see the message “Congratulations! You’re now a developer”.
Once you’ve completed this process, the new Developer Options menu should appear in the Settings app of your Samsung Galaxy device.
Step 2: Enable OEM unlocking
- Go back to the “Settings” app on your Samsung Galaxy Z Flip 4 5G device.
- Scroll down to find the “Developer Options“.
- Now go ahead and look for the “OEM Unlock” option and press the toggle switch next to it.
Once the switch is enabled, you will be able to unlock the bootloader of your Samsung Galaxy device the easy way.
Step 3: Unlock the bootloader
Now that you know what OEM unlock is and you also have it enabled from the Developer Options menu, you’re all set to unlock the bootloader of your Samsung Android device. Before you can begin, you will need Minimal ADB and Fastboot tool installed on your PC or computer (Download Link).
After you have the software downloaded to your computer, you can connect your Samsung Android device to the computer using a USB cable and run the ADB command to unlock the bootloader. While the ability to unlock the bootloader is available by default on Google Pixel devices, the same is not offered openly by all Android OEM brands. We’ve compiled a list of links from the top Samsung Galaxy Android OEM brands from where you can fetch the bootloader unlock code:
adb reboot bootloader
Remember, Samsung Galaxy Z Flip4 5G devices can only be unlocked if you own one which comes with the international Exynos SoC, Qualcomm Snapdragon, SPD, and MediaTek since the variants do not come with this ability. Once you’ve fetched the unlock code for the bootloader belonging specifically to your Samsung Galaxy device, it is time to begin the process.
- Open the Minimal ADB and Fastboot command window on your computer.
- Turn off your Samsung Galaxy Z Flip4 5G device. Press and hold the Power + Volume Down button until the screen lights up, at which point the phone will boot up in recovery mode.
- Now go ahead and connect the phone to your computer using the USB cable.
- Type in the following command in the Minimal ADB and Fastboot terminal – ADB reboot bootloader
- Once the device reboots in Bootloader mode, type in the following command – Fastboot OEM unlock your-unlock-password (enter your 16-digit code instead of your-unlock-password space).
Once the process is completed, your phone will boot up, and all of the data on your phone will be erased for security purposes, so make sure that you have created a backup of all your important files already.
The Samsung Galaxy OS is no longer an outsider in the world of mobile operating systems that has been dominated by industry giants like Symbian OS and Bada OS, but Apple’s iOS shows its true potential. just started. Today, the combination of iOS and Android is at the top of the food chain, with billions of devices likely running the latest and greatest Android operating system. For all the freedom that Google’s mobile operating system offers, learning what OEM Unlock is and how to use it properly has more to offer.
Are you one of those tinkerers who are always the first to unleash the hidden potential of mobile devices, or do you prefer to stay in natural harmony? Let us know your thoughts in the comments section below Please share.