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  2. Booting process of Android devices - Wikipedia

    en.wikipedia.org/wiki/Booting_process_of_Android...

    The Primary Bootloader (PBL), which is stored in the Boot ROM [3] is the first stage of the boot process. This code is written by the chipset manufacturer. [4] The PBL verifies the authenticity of the next stage. On Samsung smartphones, the Samsung Secure Boot Key (SSBK) is used by the boot ROM to verify the next stages. [5]

  3. Android recovery mode - Wikipedia

    en.wikipedia.org/wiki/Android_recovery_mode

    The Android recovery mode is a mode of Android used for installing updates and wipe data. [1] [2] It consists of a Linux kernel with ramdisk on a separate partition from the main Android system. Recovery mode can be useful when a phone is stuck in a bootloop or when it has been infected with malware. [3]

  4. Fastboot - Wikipedia

    en.wikipedia.org/wiki/Fastboot

    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

  5. Bootloader - Wikipedia

    en.wikipedia.org/wiki/Bootloader

    These choices can include different operating systems (for dual or multi-booting from different partitions or drives), different versions of the same operating system (in case a new version has unexpected problems), different operating system loading options (e.g., booting into a rescue or safe mode), and some standalone programs that can ...

  6. Qualcomm EDL mode - Wikipedia

    en.wikipedia.org/wiki/Qualcomm_EDL_mode

    Screenshot of Device Manager, containing a Qualcomm device booted in the Emergency Download Mode. The Qualcomm Emergency Download mode, commonly known as Qualcomm EDL mode and officially known as Qualcomm HS-USB QD-Loader 9008 [1] is a feature implemented in the boot ROM of a system on a chip by Qualcomm which can be used to recover bricked smartphones.

  7. Android (operating system) - Wikipedia

    en.wikipedia.org/wiki/Android_(operating_system)

    Android applications run in a sandbox, an isolated area of the system that does not have access to the rest of the system's resources, unless access permissions are explicitly granted by the user when the application is installed, however this may not be possible for pre-installed apps. It is not possible, for example, to turn off the ...

  8. Fix problems with the AOL app on Android

    help.aol.com/articles/aol-app-troubleshooting

    The software for most Android devices can be updated from the Settings app, but check with your manufacturer for instructions specific to your device. Force stop and restart the app Verified for version 4.4 and later

  9. UEFI - Wikipedia

    en.wikipedia.org/wiki/UEFI

    Unlike the legacy PC BIOS, UEFI does not rely on boot sectors, defining instead a boot manager as part of the UEFI specification. When a computer is powered on, the boot manager checks the boot configuration and, based on its settings, then executes the specified OS boot loader or operating system kernel (usually boot loader [62]).