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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]
The Android Dev Phone 1 was a SIM-unlocked and bootloader unlocked device that was designed for advanced developers. The device shipped with a system image that was fully compatible with Android 1.0. It was possible to use any SIM in the device and one could flash custom Android builds that would work with the unlocked bootloader. [3]
Android (all supported versions, as far back as version 4.4 of the Android Open Source Project) has the option to provide a verified boot chain with dm-verity. This is a feature in the Linux kernel that allows for transparent integrity checking of block devices. [306] [307] This feature is designed to mitigate persistent rootkits.
Installable apps have managed to unlock immediate root access on some early 2010s Samsung smartphones. This has also been referred to as "one-click rooting". [43] A security researcher, Grant Hernandez, demonstrated a use-after-free exploit in Binder, Android's IPC framework, to gain root privileges. [44]
To prevent users from cheating in video games, engaging in illegal activities, or other violations after obtaining root access to their phones, and to avoid some users attributing to Xiaomi bugs that, due to modifying the system, Xiaomi has gradually restricted the ability to unlock the bootloader on phones sold in mainland China since the ...
Developer Entropy512 also observed that CyanogenMod was legally bound by its position to make some of the firmware changes, because of the Android license and marketing conditions ("CTS terms"), which specify what apps may and may not do, and these were raised in part by Android developers at Google informally speculatively as a result of ...
On December 5, 2008, Google announced the first Android Dev Phone, a SIM-unlocked and hardware-unlocked device that is designed for advanced developers. It was a modified version of HTC's Dream phone.