The system is bricked because an older version of MIUI/HyperOS was flashed over a newer version, freezing standard recovery operations.
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This means the firehose file is not patched properly or is outdated. Try a different patched file. Patched Firehose File For Poco X3 Pro
The official Firehose file for the Poco X3 Pro is cryptographically signed. It checks two things:
is its ability to during the flashing process. Core Feature: "No Auth" Flashing The system is bricked because an older version
While the patched Firehose is a miracle tool, it is dangerous for three reasons:
Download a stable version of Xiaomi's official flashing tool (e.g., Mi Flash Tool 20200314) or the Qualcomm Product Support Tool (QPST). If you share with third parties, their policies apply
In the "Select Programmer" section, click and select the patched Firehose file you downloaded.