If you share your and what you're trying to fix (FRP, bootloop, etc.), I can recommend a safer, up-to-date alternative.
A: It is safer to perform a clean installation. Uninstall v1.1 or v1.0, reboot, then install v1.2. android novo tools 1.2 download
: Open the software on your computer and connect your Android device. Enter Recovery Mode If you share your and what you're trying