If QFIL cannot find the XML files, you have not extracted the fastboot ROM correctly (look inside images folder).
A for the Poco X3 Pro (codenamed vayu or bhima ) is a modified Qualcomm programmer file used to flash firmware or unbrick the device in EDL (Emergency Download) mode . Why You Need It Patched Firehose File For Poco X3 Pro
What or behavior are you currently seeing on your phone or PC screen? If QFIL cannot find the XML files, you
Yes. The Firehose works at the bootloader level, independent of the Android OS version. However, you may need to find an updated patched file for newer anti-rollback indexes. : Opening your phone to reach test points
: Opening your phone to reach test points will void your warranty and carries a risk of physical damage.
Allows users to read, write, or erase specific partitions (like EFS for IMEI repair or Userdata for resets) using tools like Universal Chipset Support: Patched files for the Poco X3 Pro are tailored for the Snapdragon 860
with your patched version. Overwrite the original file with the patched loader in the same folder.