Mi4c ships with different Rear Camera Sensors, some units are using the Sony IMX258 sensor while others are using Samsung ISOCELL SK3M2 sensor. To check the manufacturer of your rear camera sensor, follow this guide.
Want to root your phone to expand its functionalities and install tweaks? Follow this guide.
This will guide your how to install TWRP custom recovery on your phone so you can flash ROMs, tweaks, wipe partitions and create nandroid backups on your phone.