Before firmware upgrade :
1. Make sure of your AK100’s battery level at least over 80%.
2. Make sure of your AK100’s memory size at least over 50 MB.
3. Don't remove the connection between PC & AK100 during transferring hex data.

[Added Functions]
1. Updated Japanese font (multi-font)
2. Support M4A lyrics(based on i-tunes)
3. If you delete music files in your playlist previously created from SD card or internal memory , they will be only
   shown by grey colored.(even can't click them)

[Bug fix]
1.Bugfix during formatting to fat in Mac pc

[Improvements]
1. Improvement of booting speed 20% compared with 1.30
2. Allowing even no audio stream information flac file to playback.
3. Allowing even damaged(audio data ) flac file to playback.