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Update Sony Xperia ZR To Android 4.4.3 KitKat via CM11 Nightly–How To

CM11 Nightly custom firmware based on latest Android 4.4.3 KitKat is now available for Sony Xperia ZR. The smartphone yet to see an official Android 4.4.3 KitKat update but with the help of CM11 nightly build, you can update your Sony Xperia ZR to a well customized Android 4.4.3 KitKat. If your device running on Android 4.4.2 KitKat, its always a better idea to update it to latest Android 4.4.3