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Odin is a utility software program developed and used by Samsung internally which is used to communicate with Samsung devices in Odin mode (also called download mode) through the Thor (protocol). It can be used to flash a custom recovery firmware image (as opposed to the stock recovery firmware image) to a Samsung Android device .
On smartphones, tablets, and other devices, an over-the-air update is a firmware or operating system update that is downloaded by the device over the internet. Previously, users had to connect these devices to a computer over USB to perform an update. These updates may add features, patch security vulnerabilities, or fix software bugs.
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.
On Samsung devices, (excluding the Nexus S and Galaxy Nexus devices), power, volume down and home has to be pressed for entering ODIN mode. This is a proprietary protocol, and tool, as an alternative to fastboot. The tool has a partial alternative.
Examples include the Wiibrew program BootMii used to fix semi-bricked Wiis, the Odin program used to flash firmware on Samsung Android devices, [7] or the fastboot Android protocol which is capable of re-flashing a device with no software installed. [7] A soft-bricked rooted Kindle Fire can be un-bricked by using unrooting tools.
Firmware hacks usually take advantage of the firmware update facility on many devices to install or run themselves. Some, however, must resort to exploits to run, because the manufacturer has attempted to lock the hardware to stop it from running unlicensed code. Most firmware hacks are free software.
fwupd is an open-source daemon for managing the installation of firmware updates on Linux-based systems, developed by GNOME maintainer Richard Hughes. [1] It is designed primarily for servicing the Unified Extensible Firmware Interface (UEFI) firmware on supported devices via EFI System Resource Table (ESRT) and UEFI Capsule, which is supported in Linux kernel 4.2 and later.
Samsung Kies (/ ˈ k iː z /) [1] is a freeware software application used to communicate between Windows or Macintosh operating systems, and Samsung mobile phone and tablet computer devices, usually using a USB connection (though wireless LAN Kies connectivity is now possible using some devices).