I have an issue with my phone, the phone doesn't delete files. When I delete a file for example a 1 gig file or a game with that same size, the file is gone in the file manager, but the space on my phone doesn't change.
My storage space WAS 1 Gig, and after I delete a 1 Gig file, the storage space should be 2 Gig, but it ends up still being 1 Gig.
I tried to do a factory reset, and also tried to upgrade my phone to Marshmallow, but the problem is still there. (Note: My phone is rooted)