I'm sorry for the inconvenience.

According to your description, please refer to the following suggestions.

1. If you download and install the third-party software yourself, this problem may be because different versions of the same software are installed on your mobile phone, and the signature files of different versions of the same software are different, so you cannot overwrite the registration. It is recommended that you uninstall the previous version and try again.

2. If this problem occurs in the non-uninstallable software pre-installed in the system, it cannot be uninstalled because this software comes with the fuselage. I suggest you wait patiently for a while, and I will try my best to give you corresponding feedback according to your situation. I believe that there will be corresponding improvements after the release of the new version.

In addition, if you have this problem when downloading and installing in a music store, I suggest you go to System Settings-System Settings-Applications-to find the music store, clear the data and cache it, and then try again.

If there is no improvement, it is recommended that you back up the important personal data and materials on your mobile phone before using the observation, and restore the factory settings of your mobile phone (main menu-Settings-Backup and Reset-Restore factory settings-Click Reset Mobile Phone-Click Clear All Contents).

If the problem still exists after the factory settings are restored, it is suggested that you take the time to go to Lenovo to authorize the maintenance site and hand over the equipment to our engineers for testing and maintenance.

You can visit /ServiceStation.aspx to see the nearest site. The business hours of maintenance stations are generally from 9: 00- 18: 00 from Monday to Sunday, except holidays, and local stations will adjust slightly according to their own operations. I suggest you call for detailed consultation before you go. Please refer to it.

You are welcome to contact us at any time or visit Lenovo Lewen Bar () for consultation and understanding.