hey,
at first...sorry for my bad english. i'm from german and it's a coupleof years ago since i've used my english

i'Ve got a problem with my mp4 player (named in the topic). it died when i changed background. but a new firmware is not the problem. at first, i only saw one partition with 8gb, not the hidden for the firmware. i tried it with rkusb.tag, but no reaction. then, i copied the setup.rkw in the main folder and restarted the player. when i connected the player again, my pc started to install a new usb-device rock27usb. at this moment when i trie to connect my mp4 player, nothing happens. no bootletter appears and i can't change anything

hope someone can help me with my problem. what can i do??
thanks