Sony Xperia ZR was launched in June 2013 with Android 4.1 Jelly Bean. The 4.55″ display has a resolution of 720×1280 pixels. The 1.5 GHz Snapdragon S4 processor is quad-core. The Xperia ZR runs on 2 GB of RAM, with 8 GB of internal storage which can be expanded with a microSD card. Like the Xperia Z, this phone is dust and water resistant.
CyanogenMod team has been working hard on making custom ROMs for the Android devices and it has come up with the CM 11 ROM for the Xperia ZR. This ROM will run on the latest Android 4.4.4 update. Only a few devices got the official update of Android 4.4.4, but you can install it on the Xperia ZR with the CM 11 ROM. Follow the steps given below.