27474 Download Fix !exclusive!: Qfil Tool
Unplug the phone, force restart it by holding the Power button for 15 seconds, re-enter EDL mode, and try a different USB port (preferably a USB 2.0 port on the back of the PC).
Once you have the correct tool downloaded, follow these steps to bypass the 27474 error. qfil tool 27474 download fix
If the issue is related to how the phone's software handles Secure Download Imaging (SDI), you might need to address it through the build properties (as shown in Qualcomm Forums ). If you are a developer, ensuring SDI is not causing a conflict with the qcom,sdi-enabled dtsi setting might be necessary. Conclusion Unplug the phone, force restart it by holding
The log will show: .