I find a way to do it...
After I edited the cyberface, I cut it all down.
Then, I used the "create a new file" feature in EA Graph, set it as 256*256 pixels.
After then, I paste the cyberface into the new file, saved it as .bmp
And I sucessfully import it into xplayer.viv!
It's a little complicated, u can try if u have the same problem
P.S.
How to apply the cyberface to my "created" player?