Modify the File Permission of an android phone.

Modify the File Permission of an android phone.
Modify android mobile phone File Permissions

By default, one application cannot read the data of another application because of insufficient permissions. But we must read it. What should we do?

Modify the permission for reading files.

Android is based on Linux, so the permission modification method is roughly the same as that of Linux.

 

However, after a mobile phone is produced, the producer restricts the permission of the mobile phone and uses it as an ordinary user, for example, we cannot delete the native app of the mobile phone, modify the permissions of the mobile phone file, and so on.

However, we can ROOT the phone to obtain the highest permissions of the phone.

After obtaining the highest permissions, we enter the mobile terminal as a Super User.

After entering the terminal, we can use chmod to modify the file permissions.

Before Modification

After modification

 

Note:

If the modification fails, we need to modify the/data permission one by one from the folder, for example, first modifying the/data permission and then modifying the/data permission, until the last file we want to modify.