:Stock firehose files often require "authentication" through authorized accounts. To fix this at home, many users search for a "patched" or "leaked" firehose loader for the MSM8953 chip. Replacing the original file in your ROM's "images" folder with a patched version can bypass the "Only nop and sig tag can be received" error. Verify Connection Stability :

If your device is opened, disconnect the battery connector, plug in the USB cable to enter EDL mode, and then reconnect the battery before hitting "Flash." This resets the power state of the EMMC chip. Summary Checklist Path Error Move firmware to C:\ Driver Error Reinstall Qualcomm 9008 Drivers Tool Error Switch to MiFlash 2017 or QFIL Hardware Use USB 2.0 and a high-quality cable

On the screen, the red flashing stopped. The amber text returned, steady and calm. progemmcfirehose8953ddrmbn fix SUCCESSFUL. DATA MOUNTED.