How to Lock Bootloader on Android
Install Android Debug Bridge (ADB)
How to Lock Bootloader on Android Picture 1
Open a web browser on your computer.
The article is based on Windows operating system, but the process is not much different on a Mac.
How to Lock Bootloader on Android Picture 2
Go to https://androidmtk.com/download-15-seconds-adb-installer.
How to Lock Bootloader on Android Picture 3
Click on ADB Installer v1.4.3 . As of August 16, 2017, this is the latest version. If you see the word 'Latest version' next to something else, click that link.
How to Lock Bootloader on Android Picture 4
Click Download . This is the big green oval button. The .zip file containing the '.exe' installation file will begin downloading.
How to Lock Bootloader on Android Picture 5
Double-click the downloaded file. The contents of the .zip file will open.
How to Lock Bootloader on Android Picture 6
Double click on the file with the extension '.exe' located in the .zip folder. This file will be named 'adb-setup-1.4.3.exe' or similar. The command line screen will open and ask if you want to install ADB and Fastboot.
How to Lock Bootloader on Android Picture 7
Click Y. Now the system will ask if you want to install ADB system-wide.
How to Lock Bootloader on Android Picture 8
Click Y. A message about installing drivers for the device will appear.
How to Lock Bootloader on Android Picture 9
Click Y. After a while, the Device Driver Wizard installer will appear.
How to Lock Bootloader on Android Picture 10
Click Next .
How to Lock Bootloader on Android Picture 11
Click Finish . ADB will begin the installation on the computer.
Lock bootloader
Connect the Android device to the computer via a USB cable. If you do not have a USB cable with your device, use another compatible alternative that is safe for the device.
Depending on your device, you may need to install a driver in order for your computer to recognize your Android device. Visit the phone or tablet manufacturer's website to download the driver.
How to Lock Bootloader on Android Picture 12
Press ⊞ Win+S to open the search bar on Windows.
How to Lock Bootloader on Android Picture 13
Enter cmd. A list of matches will appear, including "Command prompt".
How to Lock Bootloader on Android Picture 14
Right click on "Command prompt" and select Run as administrator . As such, you will be able to use the command line with admin rights.
How to Lock Bootloader on Android Picture 15
Click Yes to confirm. A command line window will open.
How to Lock Bootloader on Android Picture 16
Type adb reboot bootloader and press ↵ Enter. The ADB program will launch.
How to Lock Bootloader on Android Picture 17
Type fastboot oem lock and press ↵ Enter. The command will execute and lock the bootloader. If an error message appears, try entering one of these two commands:
fastboot flashing lock
OEM relock
How to Lock Bootloader on Android Picture 18
Type fastboot reboot and press ↵ Enter. The Android device will reboot and lock the bootloader.
You should read it
- What is GRUB bootloader?
- Not only Netflix, other App Developers can also block Android from being rooted to download applications
- Troubleshoot Linux boot problems with GRUB
- How to create Hackintosh USB with Clover Bootloader
- Install Android Oreo now
- Instructions to fix Windows error does not boot
- Android SDK - Download Latest Android SDK
- How is Android One and Android Go different?
- All you need to know about Android Pie
- What is Android TV Box?
- 3 newly changed settings of Android P
- What else do you not know about Android TV?