Why Galaxy SII reports on not enough memory for new apps when I have several GBs available on flash storage? I have 5GB free out of total 11.5GB internal flash storage on my SGS2.

However, it doesn't allow to install new apps saying there's not enough memory. Also Settings &gt; Applications Manager &gt; All reports 1.7GB used, 281MB free (even immediately after reboot).

Why I can't use all 11.5GB of internal storage for my apps, but only 2GB? How can I make more storage available for applications?

Samsung Galaxy SII, stock firmware auto-updated to 4.1.2 I9100 XWLSE.
The Samsung Galaxy SII is an older device which doesn't use the MTP protocol and so, applications' storage and internal storage is separated. Newer devices share the full internal storage seemingly.

If you in need of storage space for apps, you may look at some root options such as:


app2sd applications that enable you to transfer your applications to the internal storage
app2ext that enable you to extend your applications' partition
a ROM for your phone that change the partitions' size