Thought I would share Lenovo-Zuk-Z1 it is assom phone by lenovo A new system update is available for Lenovo Zuk Z1. This update improves the overall stability and performance of the device. To install, please connect your Zuk Z1 to the internet and follow the following steps - yanogen OS: Customization
Browse and install user created themes from the themes app. Use Theme chooser to mix and match and make Z1 truly unique
-> About Phone -> System Updates