1. Better SDHC card supporting.
2. Solved the noise problem when battery is out of power.
Firmware Update Instruction:
1. Decompress zip file to IMG file.
2. Connect computer and player via USB cable
3. Delete all music files from on board flash
4. copy img file to on board flash
5. Delete USB device from system and remove USB cable from player
6. Reboot player (you will see white color and firmware upgrading sign on the LCD screen)
7. Reboot again after upgrading finished.