This program is incompatible. Qt is a cross-platform C++ application development framework, and Qt5. 12 is a version number of Qt, which is one of the stable versions of the framework. Ensure that the operating system of the equipment is the latest version. The old version of the operating system will be incompatible with the qt5. 12 program, which will cause the installation to flash back. Go to the software update section in the device settings and check if there are any operating system updates available.