Recently the 11.3.A.2.33 firmware update hit the Xperia E (C150X) devices and now Sony Xperia E Dual owners disappointed that their handset would not receive an update may be satisfied by the fact that the Japanese company has released a new firmware listed with number 11.3.A.3.1 and available for Xperia E dual (C1604 and C1605) version that brings some needed enhancements and bug fixes.
As XperiaBlog specifies, Sony has just started the rollout of firmware version 11.3.A.3.1 for Xperia E Dual, so it should be available globally in the next few days. Remember that the update is available for all Xperia E Dual models: C1604 and C1605.
Firmware version 11.3.A.3.1 is based on Android 4.1.1 Jelly Bean, but the firmware is very fast and stable, so its installation is very recommended.
Sony has not published the official changelog of the update, but this is a minor update so doesn’t bring any noticeable changes, so it probably provides some improvements as well as bug/security fix.
Thanks to Jozinek an XDA Developer member you can download from here the FTF firmware file and install the new 11.3.A.3.1 firmware on your Xperia E Dual device.
