Changing Android OS Language from English -> Korean
Hey guys I just bought a Motorola G for my mother-in-law and the entire OS language is in English. However, her primary and preferred language is Korean, NOT English, how can I change the system language in Android from English to Korean for her? Just to clarify, I do not mean, how can I change her text-input language, I've already set up her phone to be able to type in Korean, I am wondering if anyone knew how I could change her entire system language into Korean so that all notifications, boxes, texts, information, etc. is presented in Korean.
She's on Android 4.3 but there's an OTA to 4.4 that I haven't downloaded yet. Would I just need to get my hands on a Korean Android 4.4 and flash it onto the system?