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Sony Xperia E C1504 / C1505 has reached end of life time and Sony has decided to end software support for that smartphone.

Sony Xperia E C1504 / C1505 has been announced in December 2012. Sony has not released any major firmware updates for that smartphone, only a few minor ones:

and the Android 4.1 Jelly Bean firmware is the latest one. Latest available software is 11.3.A.2.33. Don't worry, Sony Xperia E C1504 / C1505 just like most of Sony Ericsson / Sony phones is still supported in our Sony Ericsson Online Service and all firmware versions for that smartphone are available

Source: Sony