All Qualcomm Firehose File 'link'

Qualcomm and Google have tried to close this loophole with authentication and TrustZone rollback protections. Newer Firehose loaders now check for "digital signatures" from the manufacturer before executing.

Assuming you have acquired the "All Qualcomm Firehose File" pack, here is the standard workflow. All Qualcomm firehose File