Unable to connect to iTools solution after updating iTunes 12.1.0

Recently, the latest version of iTunes (12.1.0.71) has changed a lot, and some problems have arisen, and IOS devices cannot be identified. What should I do if iTools cannot be connected after updating iTunes 12.1.0? 1. The order of uninstalling iTunes and its components correctly: Since iTunes involves multiple interdependent components, please follow the order below in "Control Panel" ;->"Add or Remove Programs" Uninstall iTunes and related components: 1) iTunes2) Apple Software Update3) Bonjour4) Apple Mobile Device Support 5) Apple Application Support (32-bit) 6) Apple Application Support (64- Bit) (It is recommended to restart the computer after uninstalling iTunes and its components) 2. Install the old version of iTunes1) After uninstalling the new version of iTunes completely, open the iTools PC and connect the device to the iTools PC. You will be prompted to install the iTunes component. [One-click installation] will automatically download and install. (If you uninstall the iTunes component and do not prompt "Download the iTunes component", I suggest you re-download the latest version of the installation) 2) After the iTunes component is installed, click Start iTools to connect.