How to change stock dialer on LG G3 F400K from South Korea

[AC Question]

I have a LG G3 F400K from South Korea which I have rooted.
My dialler has all Korean symbols on it, I'm just wondering how to get rid of these Korean symbols.
Thank you.

 

[Sam0620]

I'm using same phone with straight talk sim,edit build.prop file in /system/etc/ folder

ro.product.locale.language=en
ime_keyboard_layout=en=QWERTY

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