ERROR MESSAGES
E01 Order parameter error (e.g.: Delete the file error, Appointed ID error, Not find the file)
E02 No file to play (include: MUSIC, VOICE mode)
E04 Set up directory failed (While recording, if not have RECORD folder, it will set it up)
E05 No response
E06 Folder is full (e.g.: There are at most 99 files in VOICE folder)
E07 Disk capacity is not enough (While recording, the disk capacity is not enough)
E08 Flash error (e.g.: Not format the disk, it will note while entering MUSIC, VOICE, RING, RECORD folder)
E10 Recording error
E12 Directory doesn't exist
E53 In voice folder, record files error or no record files
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