I do not regret the decision to have gained me the Z3C as my new corporate phone. On the phone itself are tons of bloatware from Sony and beyond strange services called "Device Usage" or "User Data Logging" that do not also can be deactivated and activated after stopping course independently again. One way to get rid of this filth, is unlocking the bootloader + root + App for removing system apps (eg Titanium Backup) + "app Opps". Unlocking the bootloader is even officially supported by Sony with video instruction and all [.....]. However, one loses not only guarantee, but also the DRM keys. The even has the consequence that the camera characterized works worse. A way back is no more then. A so vermülltes phone that transmits quite possible even the personal data to Japan and can not be rooted decent, I would NOT recommend users who makes the purchase of "smart devices" worrying about the security of personal data.
