I need to use the following permission in my App:
android.permission.MODIFY_PHONE_STATE
But it shows an error in Manifest saying that the permission is only granted to system apps.
I need to intercept the connection in order to disconnect it and send an sms to the number.
I need to make it system app, but how?
Unfortunately, this permission can no longer be obtained. From Android 2.3+ this permission was limited to system apps only.
At documentation is mentioned that it is not intended for third-party use.
As we can see in the commit by David Brown, an Android contributor, permission was marked as signatureOrSystem .
There are some issues, for example 15031 , 15022 and 14789 . They were ignored.
Alternatively you could install your App as a system, but it is a manual process that requires root to work.
This permission is for system applications only!
No other application can use this permission other than the system permission.
What do you need to do?