Thanks Diddy. Yes, that's right, if I go to the Language & Input, Chinese is not listed there. I think in my case it's possible, because the manufacturer is TCL (a China based) and I'm getting conflicting info from the manufacturer' support, once they explained to me how to add Chinese keyboard, which is what I'm looking for, and the other time they told me that I need to take the phone to a support center (where I live there's no support center), so if someone can explain how to add additional language (not available in the system), I can try to see if it'll work.