Xperia 1” “Xperia 5” “Xperia Ace” software update

NTT DoCoMo provided software update service for Sony mobile Android smartphones “Xperia 1 SO-03L”, “Xperia 5 SO-01M” and “Xperia Ace SO-02L”.

By applying this update, in addition to improving security, Xperia 1 and Xperia 5 improve the “rarely freeze or restart when a specific image is set as wallpaper” phenomenon.


There is a method to use only the terminal body and the personal computer for the update in both models. The update takes about 12 to 13 minutes for “Xperia 1” and “Xperia 5”, and about 7 minutes for “Xperia Ace”.

 The updated build numbers are “55.1.D.0.396” for “Xperia 1” and “Xperia 5”, and “53.1.B.0.376” for “Xperia Ace”.