my Ezio i95 B phone wont show upgrade details

My chineese EZIO i95 -B phone wont show that it can be upgraded to future android versions? in the settings - about display screen.

Android™ 4.2 (Jelly Bean) Operating System (Upgradable for future Android Version)

In the description on the ebay website it clearly shows that it is ( upgradable to future versions of android)

how do I apply an upgrade ?

Peter