Help S7 internal storage running out rapidly and constantly.

[LunaRiha]

I have an S7, and over the last couple weeks I've noticed it's constantly running out of storage.
I have an SD card in there which everything is set to save to, and I went to a concert on the 5 and got lots of video. When I came out, I noticed my phone had run out of space which I thought was odd considering i set it to save to SD card. I checked, and the video was saved on the SD card.

So, I got home and backed the video up, deleted all the clips and my phone was still out of storage.
I checked on the internal storage map and the figures it was giving me (% of what files took up space) didn't equate to 32gb, it was more like 20gb.

I can't remember what I did then, but since that my phone just keeps getting full, the more and more I delete stuff it just keeps filling up with absolutely nothing. I've gone from a full phone of music, pictures, movies etc.. to now having only a couple screenshots and the storage is full once again. This whole time, I've added at most, a couple screesnhots. I've not downloaded anything, nor have I installed anymore apps.

I've used CCleaner, Scandisk memory zone, I've checked for malware with MWB, Scanned with ESET and everythings fine. Also cleaned again with avast cleanup.

I really don't understand what's happening.. why is my phone filling up with nothing at all?
On the verge of just wiping it now, it's really frustrating.
Whoever designed this sh*t needs a slap for not allowing me to view gallery while the phone is low storage.

 

[Hadron]

The 20GB bit is easy: the rest is space reserved for the operating system, system cache partition, etc. Samsung add a lot of stuff to Android, and are generous with the space they allow themselves for future ROM upgrades.

The rest is harder. Have a look at your apps (Settings, App Manager), select All and sort by size. Just to make sure some apps aren't just eating the space by storing data. "All" because a pre-installed app could be the culprit.

Otherwise it's a matter of working out what is using the space. The problem is that without root there are a lot of things you won't be able to see. But if you could post your storage info that may give some clues. You could try another storage analyser app such as Diskusage and see whether that shows anything useful.

 

[LunaRiha]

The 20GB bit is easy: the rest is space reserved for the operating system, system cache partition, etc. Samsung add a lot of stuff to Android, and are generous with the space they allow themselves for future ROM upgrades.

The rest is harder. Have a look at your apps (Settings, App Manager), select All and sort by size. Just to make sure some apps aren't just eating the space by storing data. "All" because a pre-installed app could be the culprit.

Otherwise it's a matter of working out what is using the space. The problem is that without root there are a lot of things you won't be able to see. But if you could post your storage info that may give some clues. You could try another storage analyser app such as Diskusage and see whether that shows anything useful.

My apologies, forgot to mention that 20gb included the System files. I just cleaned up again but I can already see it's losing space already so when It goes back to low space I'll post a screenshot!

 

[Hadron]

I really doubt that the 20GB includes the system partitions though. On some phones they do include this, but in those the total adds up. 20GB sounds about right for the user-accessible storage of a 32GB S7, but there may well be some system data in that.

 

[LunaRiha]

I really doubt that the 20GB includes the system partitions though. On some phones they do include this, but in those the total adds up. 20GB sounds about right for the user-accessible storage of a 32GB S7, but there may well be some system data in that.

On the breakdown it says system files 7.14gb, the rest is 11gb of my own stuff. Apps, pictures, video and the rest seems unaccounted for. The 11gb also confuses me because everything I download, add to my phone including apps, goes straight onto my SD card (be it automatically or manually), and when I view system storage files, theyre all files that's root leads to the SD card, when I remove the SD card there's no trace of them on my phone at all. I haven't checked to see if they still consume storage space I'll do that when I'm back from work.