I have 5.1 Android.
I attached two screenshots.
-the internal storage has 285 MB free space
-the usb storage has 6.98 GB free space
-the Sd card has 21.59 GB free space
However, I can not even install an app with size as small as 6.05 MB because it says that I need to free 20.38 MB space!
Am I missing something or is the system buggy?
What should I do?
Thank you very much!