After seeing the Xperia C4 unexpectedly see the Android 5.1 Lolllipop update yesterday, it looks like Sony has also pushed the button for the Xperia C5 Ultra. All variants of the handset are receiving the Android 5.1 firmware update – the Xperia C5 Ultra (E5553, E5506) has been updated to build number 29.1.A.0.87, whilst the Xperia C5 Ultra Dual (E5533, E5563) is being updated to version 29.1.B.0.87.
We will include FTF firmware links for all variants of the Xperia C5 Ultra below in due course. In the meantime, let us know your impressions of the latest update in the comments below.
Xperia C5 Ultra FTF firmware files – Android 5.1
Xperia C5 Ultra Dual FTF firmware files – Android 5.1