Iphone says storage is full but isnt?
Hi, so my iphone 5s says that the storage is full all the time, even though when i added up the values of my used storage I should still have 4GB left. I have 2.8 GB of photos and the biggest "space taker" other than that is music with 136 MB and facebook with 80.3 MB of data. Also, when it says the storage is full my whole phone messes up. when i try to open any of my apps (apple apps, not things like facebook etc) all crash, especially messenger. When i try to send a message ill start typing the message and the send button will stay grey, and if it does let me send it, it fades the conversation and deletes the contact name from the top. Ive tried resetting it and restoring it and its all updated, so any other ideas? the warranty just ran out at the start of february and this started about a week after that. any ideas?? also, about 20 minutes ago it said i had 1.2GB of storage and now is says I have 0 bytes? Sorry Apple I think im switching to samsung for my next upgrade.
iPhone 5s, iOS 8.1.3