Hello Joan Xie,
Thanks for your reply to my question.
I did your steps, but on my gui (it was created at qt creator) I can not see chinese characters. I run my gui at my Ubuntu desktop PC, I can see all Chinese charcters. I read all text from XML file on my gui. Maybe I write wrong TTF name in XML file.
Also I did not do this steps.
# rz ; then select wenquanyi.ttf as z-modem received file
# fc-cache -lv
I generate my own rootfs, But there is not rz command.. This is important?
wenquanyi ttf's name is "WenQuanYi Micro Hei" or it is only WenQuanYi?