Sony recently provided an Android Kitkat upgrade to Xperia Z, Xperia Zl, Xperia ZR and Xperia Tablet Z. The news left many of the users happy but after the update, many of the users complained about the severe battery drain problem on these devices. It seems that many people who upgraded their Xperia Z to Kitkat build number 10.5.A.0.230 have been suffering from the terrible battery life after the update.Sony Mobile has recognized this problem and on investigation, they said that the main cause of the problem after the update is related to the latest version of the Google Play services (4.4.52).
They provided a workaround for this problem saying that until Google provides a newer version of the Google Play services, users are recommended to uninstall the latest version of the Google Play Services. This might limit the Google services like YouTube. The other way is going to Settings -> Google (accounts) -> Ads and then make sure the box beside ‘opt out of interest based ads‘ is tick-marked. And also, go to Settings -> Backup & reset (personal) and untick the box beside ‘Backup my data‘.
If any user is unable to uninstall the latest version of Google Play services From Settings -> Apps, it is advised to go to Settings -> Security -> Device administrators and disable ‘Android Device Manager‘. Also make sure that ‘automatic updates‘ is not enabled in the settings of the Play store.
All the Xperia Z users out there, try this workaround provided by Sony and let us know in the comments how it worked for you.
Source: Xperia Blog
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