Sony 在官方 Support 讨论区回应有关 Xperia Z, ZL, ZR, Tablet Z 耗电问题。在最近推送的 Android 4.4.2 更新中，几部装置 Xperia Z, ZL, ZR, Tablet Z 都出现严重的耗电问题，不少用家都作出投诉。
Sony 表示这个耗电问题源于 Google Play Services (4.4.52)。Sony 指现阶段用家可以将 Google Play Services 最新的 Update 卸载，直至 Google 放出最新的版本。
又或在 “设定 > Google 帐户 > 广告 > 勾选 “停用按照兴趣显示的广告”，并在 “设定 > 备份与重设 > 不勾选 “备份我的资料”。
We have investigated the issue with Google Play Services using alot of battery and we have identified that the root cause of this is related to the latest version of Google Play Services (4.4.52).
Until a new version of Google Play Services is provided by Google we urge users to either uninstall the latest update of Google Play Services (might limit use of Google Services like Youtube) or go to Settings > Google (accounts) > Ads > Tick the box for Opt out of interest-based ads and also disable back up of your data by going to Settings > Backup & reset (Personal) > uncheck the box for “Back up my data”.If you are unable to uninstall the update for Google Play Services from Settings > Apps, go to Settings -> Security -> Device administrators and disable “Android Device Manager”. Also check the settings in the Play Store so that automatic updates is not enabled as this may update Google Play Services again automatically.
Source: Sony Mobile