I rooted my phone and, perhaps over-zealously, removed many of the system apps which I deemed junk.
But, now I'm trying to restore one of the apps I removed, but simply restoring the file to the
/system/app directory and giving the right permissions (
root:root) does not allow me to use the app on my phone.
I am trying to restore the Gallery3d.apk app file (from a backup) to my LG P509 phone. I am not sure if this solution will have general application or will only apply to this particular app.
I have already tried copying the app to the user-accessible storage and trying to install it as a User app, but the install fails.
How do I restore this app (or these types of apps) so that my phone will be able to use it again?