No free space for apps, even for the one I just uninstalled to free space.

[AC Question]

So I've been struggling with my Huawei P9 lite storage for a while, but now the problem got more frustrating: I uninstalled 3 apps to free some space. Right after that, I tried to install one of those again. Says there's not enough space.

From my little research, on the P9 lite there's no way to move apps to the SD.
On the internal storage I have 500mb, and Facebook says I need 50 more mb... Is that possible? Is there a way to fix this? For what I see, on the P9, the SD is for media only.

 

[ManiacJoe]

You have all your media moved to the SD card, right?

Using the phone's settings and clean-up app, delete all the cache files for the apps and OS. (Not the data files)