Hi, I am really sorry I couldn't open your "Private Message" again.
According to Map 845.xxx and Navcore chart, I believe the provided 'Thailand map 830.2332' cannot go with my device, running navcore v9.026.
In order for it to work, I think I have to download Map 845.xxx and I guess you do not have it either. So, if you by any chance have Map845.xxx, please let me know.
Note: I happened to make the TTS working by 'Reset factory settings', 'Remove and reinstall previous computer voices (which, I believe, was corrupted)' and 'Restore all backup'.
I have downloaded Thailand Map 845.xxxx from the links below:
From previous reading you suggested, I realized that there should be 'meta.txt' along with the compressed file.
But here I could not find one from the download above. Could you please help check it out whether it is a workable Map?