Sony Mobile has pushed a small Android 5.1 firmware update for the Xperia C4, moving the build number to 27.2.A.0.169 for the single SIM variants (from 27.2.A.0.155) and to version 27.2.B.0.169 for the Xperia C4 Dual (from 27.2.B.0.155). As with the Xperia C5 Ultra update yesterday, this is a minor update which includes the February Android security release, but we’re not sure there’s that much more new in this update. Let us know in the comments below if you find any different.
DOWNLOAD FTF Firmware Files – Xperia C4
DOWNLOAD FTF Firmware Files – Xperia C4 Dual