1. When installing the software, you will be prompted that the application is not installed, or there is an error when you are prompted to parse the software package. Generally, the possible reasons are as follows: \x0d\ 1. Your application installation package does not support the current version of Android system. Download and update the latest version through the reliable software market. \x0d\2。 There is something wrong with the electronic signature of the application installation package, which indicates that the installation program has been tampered with. \x0d\3。 The memory space of the mobile phone body is insufficient. \x0d\\x0d\ Second, if you want to move files to the memory card, you must first determine whether your mobile phone is ROOT. If it is ROOT, it is not recommended to move files manually. If you want to move applications, especially system programs, you can try to use the SystemAppRemover tool to delete the backed-up system programs, and then manually install them, so that many applications can be moved (some system applications must be installed in ROM by default. )