I buyed this player last week
LINK. In Options-> System information it says:
Product name: RK27SDK
Major version ID:2.2
Hardware ID:080722
The memory size is 16 gb. There is a problem reproducing music: the volume of the singer in all songs is too low! The instruments and the base of the song is perfect but the singer volume is very low!! do you know why? Is it possible to modify my new firmware with another firmware only in the part that regards music player?
Thank you in advance guys!