If the device is hard-bricked, you may need to open the back cover and short specific test points on the motherboard while connecting the USB cable.
How to Use a Patched Firehose File for POCO X3 Pro (2021) patched firehose file is a critical tool for unbricking or flashing the POCO X3 Pro (codename: ) when standard methods fail . Xiaomi typically locks these files behind an authorized account patched firehose file for poco x3 pro 2021