Always use official loaders from the stock ROM.
"No!" Elias typed a command he had hoped never to use. --force-nand-erase . It was the nuclear option. It would wipe the security certificates, destroying the phone's identity to save its data. qfl qualcomm flash loader v10
Ensure the device has at least 30-50% battery, even if the screen is off. How to Use QFL v1.0: A Step-by-Step Guide Step 1: Boot into EDL Mode QFL Qualcomm Flash Loader V10: A Comprehensive Guide
QFL Qualcomm Flash Loader v10 is a testament to the engineering complexity of modern mobile computing. It is a tool of last resort, a digital defibrillator for bricked devices, and a master key for hardware-level access. Its existence highlights a fundamental tension in system design: between recoverability and security. A device that is completely secure from low-level flashing is also a device that cannot be repaired when its software fails. Cause: Wrong driver or USB cable
If it says “Sahara protocol error”, your loader is incompatible or phone is not in EDL.