I have a Galaxy S5 Neo, about 2 years old. For about a year, i have been getting notifications that the phone is full and cannot install updates etc.
I have gone through the phone a few times, deleted whatsapp videos and images and other stuff i don't need, and still is showing me 1.9GB free out off 11GB (this is after the clean up). When it gets to about 1GB of free space - it locks up and refuses to install updates. I currently have 500MB of whatsapp images. All my own camera images and videos as well as music are all on the SD card.
Attaching an image of my folder root that i see on the computer - as well as tech specs.
Any tips appreciated.