I followed these steps, but it didn'nt work (map didn't show up). I don't know where is the problem at all. Because I installed and run successfully an Australian map exactly the same way.
Perhaps my GPS doesn't like Chinese (although it has an Google Chinese IME installed) !!
Did you spell the name right? I notice in your post #14 you used the wrong name gmasupp.img instead of gmapsupp.img.
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