EDL mode (Emergency Download mode)
Definition
A Qualcomm diagnostic protocol embedded in the Primary Boot Loader (PBL) that activates before the main OS and accepts raw memory read commands over USB. Widely used for physical acquisition of Qualcomm-based Android devices.
Related terms
- Bootloader
- Firmware that runs immediately after power-on to verify, load, and hand control to the operating system. A locked bootloader refuses to execute...
- Chip-off acquisition
- A physical extraction method in which the flash memory chip is desoldered from the device's circuit board and read directly with specialised...
- File-based encryption (FBE)
- An Android encryption model introduced in Android 7.0 in which each file is encrypted with a separate key derived from the user...
- Full-disk encryption (FDE)
- A storage protection model in which the entire partition is encrypted with a key derived from the user's passcode and hardware-bound identifiers....
- NAND flash
- The type of non-volatile memory used in all modern mobile device storage. Data is written to pages grouped into blocks; erasure operates...
Explained in
- Physical Acquisition TechniquesA Qualcomm diagnostic protocol embedded in the Primary Boot Loader (PBL) that activates before the main OS and accepts raw memory read commands over USB. Widel...