When using QFIL, this error often indicates that the Firehose loader is incompatible or that the partition files don't match the device layout.
If QFIL cannot find the XML files, you have not extracted the fastboot ROM correctly (look inside images folder).
However, before proceeding, I need to emphasize a few things:
Copy your into this images folder. Note : You must rename the patched file to match the exact name of the original file you removed. 2. Boot into EDL Mode Patched Firehose File For Poco X3 Pro
You need to flash fastboot ROMs to repair the system but cannot unlock the bootloader due to the brick state.
Understanding the Patched Firehose File for POCO X3 Pro (vayu)
Download the patched program_firehose_ddr.elf (specifically for Vayu/Bhima). When using QFIL, this error often indicates that
You will need this file if your phone is experience any of the following issues:
He typed Y.
Step-by-Step: How to Use Patched Firehose File for Poco X3 Pro Note : You must rename the patched file
A patched Firehose file has this server authentication check bypassed or modified. It allows technicians and advanced users to flash firmware, wipe data, or repair partitions without needing an official, paid authorized service account. Why Do You Need a Patched Firehose for Poco X3 Pro?
Look at the top of the QFIL interface. Ensure it detects Qualcomm HS-USB QDLoader 9008 (COMXX) . Click the button.
| Device | Poco X3 Pro | | :--- | :--- | | | Qualcomm Snapdragon 860 (SM8150-AC) | | Storage Type | UFS 2.1 | | Sahara Protocol | v2 | | Firehose Required | prog_ufs_firehose_sm8150_ddr.elf (Patched) | | Auth Bypass | Yes (Bypasses SHA256/RSA checks) |