The mobile phone installation software prompts "Signature conflict, inconsistent with the signature of the old version." It may be that there are residues when you uninstalled the software. You can scan and clean up the junk through iButler, restart your phone and try to install it again.

If the program is a third-party application that comes with the phone, you can go to Settings - More Settings - Applications - Factory Application Management to find the software and click Install to restore it.

If the application is incompatible with the system, freezes or cannot be used normally, you can upgrade the software to the latest version or download other versions to install and use. You can also enter Settings - System Upgrade - Detect and update the system. , improve the stability and compatibility of system operations.