1, mobile phone storage itself is relatively small, for example, some low-end mobile phones, its storage space is very small, and there will often be a shortage of mobile phone storage space.

2, because too much software is installed or too many files will be stored. Some large files are very memory-intensive. There are also some reasons why the virus in the mobile phone leads to insufficient storage space in the mobile phone.

Second, the solution:

1. Free up the memory space on the mobile phone by deleting some large videos, applications and photos that occupy the space of the mobile phone.

2. Clear the contents of the memory cache in the mobile phone application software.

3. See if the phone supports memory expansion. You can increase the storage space of your mobile phone by purchasing a mobile phone memory card.

4. You can release the space by restoring the factory settings of the mobile phone.

5. Organize the media files of the mobile phone and send them to the network disk for storage, which can effectively release space.

6. Adding a memory card to the mobile phone, installing programs on the memory card or saving data on the memory card can effectively reduce the problem of insufficient memory in the mobile phone.

Extended data:

Common troubleshooting of mobile phones:

Fault phenomenon: the software on the mobile phone flashes back.

1. The software cache may be too large to run normally. It is recommended to try to clear the software cache (note: all data of this application will be permanently deleted).

2. If the software can be uninstalled, it is recommended to uninstall the software and reinstall it, or replace it with other software versions and try to install it again.

3. If it is invalid, please update the mobile phone system version. Note: Please back up the data in the device before upgrading.

4. If it is the latest version, please back up the data in the device, and then try to restore the factory settings.

If the problem still exists after the above operation, please take the purchase invoice, maintenance card and machine to the service center for inspection.