QPST (Qualcomm Product Support Tools) with the Sahara protocol can be used to perform a memory dump from Qualcomm-based devices in EDL (Emergency Download) mode. The following is a concise, practical guide covering prerequisites, risks, and step-by-step instructions.
Sahara Protocol Specification (80-N1008-1): This is the official (though often restricted) document from Qualcomm that outlines the binary communication protocol used in Emergency Download Mode (EDL). It details the "Hello" handshake and how memory read commands are used for dump collection.
<?xml version="1.0"?>
<data>
<read memaddr="0x80000000" memlen="0x1000000" filename="ramdump.bin" />
</data>
The primary communication protocol used by Qualcomm devices in their bootloader stage to facilitate command-and-response tasks, such as sending memory dumps or receiving flash loaders. Memory Dump:
Whether you are salvaging priceless photos from a water-damaged phone or debugging custom firmware, mastering the Sahara dump process empowers you to operate at the firmware level where Android itself cannot reach. Always proceed cautiously, respect legal boundaries, and maintain verified backups of your Firehose files and partition tables.
Understanding Memory Dumps