Finally, the wait is over for the Xperia C5 Ultra Dual smartphone users, the Android 6.0 Marshmallow update is seeding for the smartphone with firmware number of 29.2.B.0.122. Currently the update is hitting the Xperia C5 Ultra Dual variant with model number E5533, but very soon the other models will start receiving the update.
If you are a C5 Ultra dual smartphone owner, then you will receive the update notification soon. Or, you can manually check for the update by heading to your handset’s Settings menu. Sony has just started the OTA roll out for the firmware update, so it may take some time to reach you.
Sony has also started rolling out the Android marshmallow update to the Xperia C4 and Xperia C4 dual devices earlier this week. It seems like Sony is in a rush to finish the list with Marshmallow eligible devices before going through the list with Android Nougat eligible Xperia devices to roll out the Nougat update.