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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.
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 computer.
The bootloaders of Nexus and Pixel devices can be unlocked by using the fastboot command fastboot oem unlock or if it doesn't recognize the command fastboot flashing unlock. [ 9 ] When Motorola released a bootloader unlocking tool for the Droid Razr, Verizon removed the tool from their models.
To address this concern, Google introduced Project Treble, a framework designed to streamline the development and deployment of Android updates via Google Play Services, reducing manufacturers’ involvement in the update process. However, for many devices, significant improvements were still limited by the chipset manufacturers.
This tool saves an image of a hard disk in one file or in segments that may be later on reconstructed. It calculates MD5 and SHA1 hash values and can verify the integrity of the data imaged is consistent with the created forensic image. The forensic image can be saved in several formats, including DD/raw, E01, and AD1. [4]