As Qualcomm moves to and Project Treble , Firehose files remain relevant but evolve. Newer chipsets (Snapdragon 8 Gen 3, SM8650) use enhanced Sahara v4 + Firehose v3 with stronger RSA-4096 signatures. Moreover, OEMs like Google Pixel now use their own GSIs and custom EDL implementations that reject most leaked Firehoses.
Think of the Firehose file as a "master key." While the standard bootloader might be locked by the manufacturer (preventing you from flashing custom images), the Firehose programmer operates at a lower, hardware-proximate level, often bypassing these restrictions to write directly to the partition table. all qualcomm firehose file
Some manufacturers, like Xiaomi, require "patched" or "no-auth" Firehose files to bypass official server authentication requirements during flashing. Stack Overflow The Mysterious Case of the Qualcomm Firehose Files
