Which files can be deleted from the mobile phone’s memory card?

The following is a list of common folder names and their functions in the SD card. Since the system junk cleaning software we downloaded is a bit tricky and cannot completely clean it up, I hope this article can help users with cleaning and related tasks. Provides convenience in operation.

System data category? System file storage related folders

1. .android_secure: The product of official app2sd, which stores related software usage certification verification, and deletes the software in the SD card will be unavailable.

2. Android: Stores important program data, such as the map cache of google:map. If the map is accidentally deleted, the map needs to be downloaded again.

3. Backups: Contains important backup files, such as contacts exported to SD card will be imported to this folder.

4. bugtogo: When there is a problem with the system, some report files will be formed and stored in this folder.

5. data: cache data folder, similar to Android. For example, Screenshot Assistant screenshots are saved in datacom.edwardkim.android.screenshotitfullscreenshots.

6. LOST.DIR: Lost or wrong files on the card will be moved here. If this directory is deleted, it will be automatically generated.

7. SystemAppBackup: SystemApp

remove (deep uninstall) after backing up system files, the directory where the backup files are saved.

8. bugreports: When upgrading the system or flashing the machine, the system and program compatible error report list (including all memory usage) will be saved in this file, which can be deleted by restarting the machine.

9. .keepsafe: Hidden software and encrypted save file addresses are stored here.

10. .thumbs: Files used to record times and content after browsing or using a certain software or using a certain folder. They are generated randomly and need to be cleared regularly. If not cleaned for a long time, a large amount of files will be occupied. The effective space of the memory card.

11. openfeint: a startup program after opening the connection network. It is widely embedded in software or games released by mobile platforms. It is the record address of update downloads or comment feedback information, and can be deleted.

12. com: Files generated by playback software when watching and playing film and television programs will be stored here. Feedback information can be reflected to the producer and can be deleted.

13. Download (download): The uppercase letters are the download file directory of the network connection, and the lowercase letters are the mobile phone itself (Bluetooth, near field, etc.) where the downloaded files are stored. Do not delete them by mistake.

System tools? Folders related to the system's own tools

1. albumart: cache folder of music album covers.

2. albums: cache folder of album thumbnails.

3. cmp: music cache folder.

4. Playlists: cache folder of playlists.

5. DCIM: The camera randomly caches folders to record the parameters of function settings and needs to be cleaned up in time. Photos taken by some third-party camera software will also be saved here, such as 360 or vignette cameras.

6. VPN: cache directory of VPN data.

7. My documents: Documents recorded by various program tasks on the mobile phone need to be cleared regularly. If not cleared for a long time, it will occupy a large amount of SD card memory.

8. .nomedia: Hidden audio and picture folders in the mobile phone will be displayed here, and can be set in relevant folders.

9. Media: Audio file records and archives generated by using phone call recording software or online video browsing and other media will be saved here.

10. .medieval_software: When the Bluetooth transmission software is enabled, the directory where the task save file is recorded.

11. extracted: The default decompression directory of the decompression software.

Third-party application classes

1. .mobo: Moboplayer’s cache file.

2. .QQ: QQ’s cache files need to be cleared regularly.

3. .quickoffice: cache file of quickoffice.

4. .switchpro: cache file of switchprowidget (multi-key switch application).

5. .ucdlres: UC Thunder’s cache file.

6. baidu: Cache folder of programs such as Baidu for Pocket and Baidu Input Method.

7. etouch: Easy cache folder.

8. documents: Documents To Go related folders.

9. Gameloft: The folder where gameloft game data packages are stored.

10. handcent: handcent (super SMS) data folder.

11. handyCurrency: Folders related to currency exchange rates will only exist after installing handycalc (scientific calculator).

12. ireader: ireader’s cache folder.

13. KingReader: A useful cache folder for unwinding: downloaded files and applications are all here: pay attention when deleting them

14. LazyList: Applanet’s cache directory, use with caution .

15. moji: cache directory of Moji Weather.

16. MusicFolders: cache folder generated by poweramp.

17. openfeint: the cache folder of openfeint.

18. Picstore: A directory created by picture browsing software.