Apparently, the handset has a divided memory internal storage & phone storage. The second is virtually all available while the first, in contrast, is almost all occupied.
When you want to upgrade (or install new apps) where's it going (?), Which seems to internal memory. So the space is short. In my view (and I do not understand almost nothing of it, that's why I asked for help) if I could merge the "internal memory" to "phone memory" into one where the apps were this would solve the problem. But, how?
Anyway it seems to me too complex, moreover because I have difficulty with specific technical terminology.
I am very thankful to you, this my first incursion into these areas (perhaps the last, too).
thank you