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An unlocked bootloader, showing additional available options. Bootloader unlocking is the process of disabling the bootloader security that makes secure boot possible. It can make advanced customizations possible, such as installing custom firmware. On smartphones, this can be a custom Android distribution or another mobile operating system ...
Odin is also used for unbricking certain Android devices. [2] Odin is the Samsung proprietary alternative to Fastboot . There is no account of Samsung ever having officially openly released Odin, [ 3 ] though it is mentioned in the developer documents for Samsung Knox SDK [ 4 ] and some documents even instruct users to use Odin. [ 5 ]
Custom firmware, also known as aftermarket firmware, is an unofficial new or modified version of firmware created by third parties on devices such as video game consoles, mobile phones, and various embedded device types to provide new features or to unlock hidden functionality.
CalyxOS preserves the Android security model, using Android's Verified Boot system of cryptographic signing of the operating system, and running with a locked bootloader. [ 3 ] [ 4 ] CalyxOS also features an installer that guides the user through the process of unlocking and then re-locking the bootloader.
The Android Bootloader (Aboot or ABL), which implements the fastboot interface. Android Bootloader verifies the authenticity of the boot and recovery partitions. [4] By pressing a specific key combination, devices can also boot in recovery mode. Android Bootloader then transfers control to the Linux kernel.
Fastboot is a communication protocol used primarily with Android devices. [1] It is implemented in a command-line interface tool of the same name and as a mode of the bootloader of Android devices. The tool is included with the Android SDK package and used primarily to modify the flash filesystem via a USB connection from a host
CyanogenMod 7.1 was released on 10 October 2011, based on Android 2.3.4. [39] The latest stable version, CyanogenMod 7.2 was released on 16 June 2012, based on Android 2.3.7, [40] bringing a predictive phone dialer, lock-screen updates, ICS animation backports and many bug fixes. [41]
Bootloader unlocking is sometimes a first step used to root the device; however, it is not the same as rooting the device. [24] Most devices come with a locked bootloader, which prevents users from installing a new boot image, which is often flashed when rooting a device or using a custom ROM. [25]