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Category: Bootloader

  • How to Unlock Bootloader On Any Android Phone, Tablet Device?

    How to Unlock Bootloader On Any Android Phone, Tablet Device?

    There are two types of Android devices in market. Some of them come up with Stock Android version known as Android Vanilla Devices and another group of devices known as Layered Android Devices which come up with forked android version like HTC Sense device, Samsung Galaxy devices, Xiaomi devices which runs on MIUI ROM. Android devices which are running on Stock Android Operating system comes up with less number of modifications in android operating system from manufacturer. Bootloader of this type device can be unlocked easily. NEXUS and MOTOROLA devices comes up with stock android feature. Generally, all the devices come with locked bootloaders but we want to test the limits of android then its required to unlock bootloader.

    Please note that this method is only applicable for devices running on STOCK android version.

    Everything about unlocking Android Bootloader
    unlock android bootloader

    How to Unlock bootloader of NEXUS 4, 5, 5x, 6, 6p phones?

    1. Download and install Android SDK from “developers.google.com” on Computer.
    2. Now, after installing Android SDK switched off your Android device and boot into fastboot mode. NEXUS devices can be boot into fastboot mode by pressing one of the following key configuration:
      (a.) Press the power button and volume-up button until device boots up into fastboot mode.
      (b.) Press the volume-up, volume-down and power buttons until fastboot mode gets displayed.
      This method is mostly used for old NEXUS devices.
      (c.) Press the volume-down and power buttons for 10-15 seconds.
    3. Try one of the configuration mentioned above to enter into fastboot mode.
    4. Now, Connect your device to your Computer with the help of USB Cable.
    5. Wait for a minute until all drivers get installed on your PC.
    6. Open Command Prompt on your computer (MAC/LINUX users open Terminal from menu).
    7. After opening Command Prompt, Type following command to unlock the Bootloader of the Android device:
      fastboot oem unlock
    8. After pressing enter there will be a pop-up showing prompt regarding confirmation of unlocking bootloader of device.
    9. Read all the instructions carefully. Confirm your choice by pressing volume up button/power button.
    10. Now, Bootloader of your Android device is unlocked successfully.

    How to unlock bootloader of Non-Nexus or any other devices like Moto G phones, Micromax, LG, etc.?

    Some manufacturer of Android devices allow user to unlock bootloader. Whereas some manufacturer doesn’t give permission to user to unlock bootloader of device. Depending on the manufacturer of phone and model unlock state of bootloader changes. Manufacturer like XIAOMI, SONY, HTC provides unique code to customer so he can unlock the bootloader of the device. This unique code can be acquired from official web site of respected device.

    Unlocking bootloader enables you to install custom recoveries like TWRP, CWM, etc.

    How to unlock bootloader of Sony Xperia Z, Z1, Z3, l, m4 aqua, m dual, etc. phones which has unique unlock ID?

    If you have unique unlock ID given by manufacturer, then you can unlock your device by simply following steps:

    1. Get unique Unlock code from manufacturer. If you don’t have Unique Unlock ID, then it can be acquired from official website of device.
    2. KEEP BACK UP
      While unlocking the device to protect the data, user must keep Backup of all data present in the device.
    3. Enable USB debugging option from Setting menu of the device.
    4. Install the Android SDK and device’s Drivers on your computer.
    5. Also, Install ADB (Android Debug Bridge) software on your desktop. It can be found in SDK files.
    6. Open the platform-tools folder from Android SDK folder.
      Click “Shift + Right click” and Choose option “Open a Command Prompt Here”.
    7. Now, switch off your device and boot device into fastboot mode.
      To boot device into fastboot mode hold the “Power” and “Volume Down” buttons for 10 seconds. After 10 seconds release those buttons, and you can see your device is booted into fastboot mode.
    8. Run command:
      adb devices
      Above command will help device to recognized.
    9. Now, Connect your device to PC with a USB cable.
      Run command fastboot oem unlock UNIQUE_KEY. Unique key is provided by manufacturer
      After running the command, device will show pop-up about confirmation of unlocking the device. You must confirm this using Volume keys that you want to unlock your device.

    This way Bootloader of Android device can be unlocked in simple method.

  • What is Android Bootloader Mode? What does it Do? Why its Locked?

    What is Android Bootloader Mode? What does it Do? Why its Locked?

    Many times you must heard about the word “Android Bootloader” while rooting your Android Device device. On many tutorials and guides you can find out a note written there.

    “Please, unlock device’s bootloader before Rooting or flashing Custom ROM on it”

    What is a Bootloader?

    Bootloader, as name suggests “It is a code that helps to load Operating System while Booting the system.” Another definition of Bootloader is “It is programming code which gets executed before any Operating System runs”

    Bootloader is very processor specific code of motherboard which boots before any software runs on device. It is a package of instructions which makes operating system kernel boot before any software runs on device. Every bootloader comes up with different modification and debugging environment according to the manufacturing company of the device. All electronics devices like smartphones, Personal Computers, Microcontrollers comes with Bootloaders. It resists user to flash any custom ROM on device.

    What Does Android Bootloader Do in phones or other android devices?

    Bootloader is extremely important part of electronics device which founds in every motherboard. It is some sort of instructions which helps to boot operating system and kernel on the device.

    How Android Bootloader Works in phones, tablets, etc. devices?

    Android is an open source operating system which gives lot of freedom to developers. Due to openness Android Operating System has huge number of users. It makes manufacturers to develop their own Bootloaders according to the hardware present in the device. Bootloader works like control system in Android which gives instructions to kernel of operating system to boot operating system normally.

    Why Bootloader Is Locked?

    While manufacturing the device, manufacturers take lot of efforts in designing of Android OS. Lot of extra features are added in that newly designed Android OS like Xperia devices comes up with STAMINA mode feature which helps to increase battery life of the device. While selling those devices manufacturers wants customer must be stick to their designed Android OS rather than flashing any third party Custom ROM. To avoid that unnecessary software flashing Android OS powered devices comes up with locked Bootloader. Locked Bootloader of device helps to avoid flashing of third party Custom ROM on device. That’s why Android OS powered devices comes up with Locked Bootloader.

    Why To Unlock Bootloader of Android Device?

    Android bootloader
    Where is Android Bootloader

    When bootloader of device is locked it is impossible to flash any Custom ROM. If user tried to flash Custom ROM by unlocking bootloader of the device, then manufacturing company voids device warranty. Forcing device to flash Custom ROM may brick your device. That’s why there is always a notice written “Please, unlock the Bootloader of the device before rooting and flashing any Custom ROM on it.”

    Bootloader is a program which loads Operating System with Kernel. If you want to flash custom ROM on your device, you need to install/flash custom recovery on your device. Which is not possible without breaking the lock between Bootloader and Recovery. That’s why user must unlock bootloader of device before flashing any custom ROM and Kernel. If you are connected to PC or computer, to exit from bootloader mode, simply plug out the USB cable and you are done!