Unable to get FileEntry to use to delete local files

Is anyone having any success removing local files? Or anything to do with getting a FileEntry for that matter, using the File plugin?

I have a file location in the format (android): file:///data/data/com.theapp.app/files/images/3aca92abc12355ba705e779f0c2cbb26

However I am unable to remove it, as when attempting to get a FileEntry, I get error 1 (not found). I am 100% certain that the file exists, and have tried every different way of representing the location string (eg. without file://, etc).

I have had many other problems with the File plugin, and it seems it is quite brittle. Are there any file system related plugins for ionic/cordova that actually work? Seems like quite an important part of the ecosystem.