Windows Secure Boot or Driver Signature Enforcement blocking the load. Fix: Reboot and disable Driver Signature Enforcement (see Pre-Installation). Then run:
Always connect your phone using an official OEM USB cable. If you are using a desktop PC, plug the cable into the rear motherboard USB 2.0 ports instead of the front panel ports for stable power delivery. Step-by-Step Installation Guide qcommtk-driver-setup-1.4.08
Sample udev rule (35-qcommtk.rules)
Keep a dedicated Windows 10 LTSC machine or a VirtualBox VM with USB passthrough for low-level engineering work. Inside the VM, you can permanently disable signature enforcement without compromising your daily OS. Windows Secure Boot or Driver Signature Enforcement blocking
The Last Good Build
Choose your connection profile (if prompted, choose default Ethernet/Standard connection type). Click , accept the terms of service, and click Install . If you are using a desktop PC, plug