Sony 在 Xperia Support Forum 貼文更新，表示今天開始為 Xperia Z1 系列推送 新的 Android 5.0.2 Lollipop 升級，包括 Xperia Z1, Xperia Z1 Compact 和 Xperia Z Ultra。Anroid 5.0.2 的 Build Number 為 14.5.A.0.270。至於 Changelog 方面，就同之前在 Z2, Z3 推出的一樣，包括修正在 Lock Screen 顯示 No Service 問題, 在 Recent Apps 畫面加入 Close All Button, 在各個音效模式包括靜音模式下 LED 燈運作等。這個 Android 5.0.2 更新已經推出，但各個國家地區推出就有先後分別。
Ensured the lock screen / notification bar doesn’t indicate “no service” when the device has coverage
Added a Sony feature; bringing back the “close-all-button” in the activity menu, so you can easily close all apps at once
Unblocked devices with server policies (such as Exchange Active Sync for e-mail), to enable the new Lollipop lock-screen notifications
Ensured the LED light is lit across all sound modes – and no longer offset by “silent”
Made the necessary fixes to enable the easy movement of content from internal memory to external microSD card (something we saw affecting a few devices)
Improved messaging functionality in Ultra stamina mode – some conversations could not be opened before in Ultra stamina mode
Source: Sony Xperia Support Forum