Hi everyone,

A few days ago, without the knowledge of that Z10 is UN-DEGRADABLE, I flash the P2S721_U_50.20.54G firmware, which includes only English, Brazilian and Spaish. The problem now is that I speak Chinese and all the Chinese characters in messages are displayed as circles, like ●●●●●. I'v tried so hard to find any information about this problem but got no luck.

This post explains How to customize Z8's firmware, but I'm not sure if this works the same for Z10, and I don't really have any experiences with sbf, smg....

So can anyone help me with this? Any info/tips/guide are really appreciated.