Below you can find meanings and explanations for various abbreviations and terms used in our products and manuals:

ADB - Android Debug Bridge - allows the user to communicate and control their Android device using Windows/Linux/macOS command line. 

API - Application Programming Interface - set of clearly defined methods of communication between various software com

Bootloader - enables the installed operating system to boot and startup while it verifies that all the software is genuine

Download mode - Samsung's alternative for Fastboot, requires Odin or Heimdall to communicate with PC

Fastboot - diagnostic protocol included with the SDK package used primarily to modify the flash filesystem of Android devices via USB connection from the host computer

iOS - the mobile operating system used exclusively in Apple devices such as iPhones and iPads

Hotkey combination - a combination of keys used to boot into either recovery or Fastboot mode on Android devices ponents

CDMA - Code-division multiple access

CWM - ClockWorkMod recovery - another custom Android recovery

DFU - Device Firmware Upgrade mode allows all devices to be restored from any state

EDL - Emergency Download mode. This is the special mode through which users can perform various tasks like unbricking, unlock bootloader, and installation of any custom ROMs.

FRP - Factory Reset Protection - prevents the user from unlocking the phone if it was previously reset without removing the Google account

GSM - Global System for Mobile Communications

HTML - Hypertext Markup Language -  is the standard markup language for creating web pages and web applications

ICCID - Integrated Circuit Card Identifier - used to identify SIM cards

IMEI - International Mobile Equipment Identity - a unique number to identify mobile devices

IMSI - International Mobile Subscriber Identity - used to identify the user of a cellular network

MAC - Media Access Control - a unique identifier assigned to network interfaces for communications at the data link layer of a network segment

MTK - MediaTek - mostly used for chipset

MTP - Media Transfer Protocol

OEM - Original Equipment Manufacturer

PTP - Photo Transfer Protocol

RSA - Rivest-Shamir-Adleman cryptosystem

SIM - Subscriber identity module

UFED - Universal Forensic Extraction Device

UFDR - UFED Physical Analyzer Report Package

TWRP - Team Win Recovery Project - one of the custom recoveries for Android devices

USB - Universal Serial Bus - an industry standard for cables, connection, communication, and power supply

XML - Extensive Markup Language - defines a set of rules for encoding documents both human and machine-readable

ODIN - Odin is a utility software developed and used by Samsung internally which is used to communicate with Samsung devices in Odin mode (also called download mode)

Spreadtrum - aka UNISOC - Chinese chipset