I hope someone can help, i was given a mp4 player, which was bought off ebay from hong kong. the person i had it off tried to upgrade the firmware on it and now its dead. my pc recognises it, and asks for the correct firmware, but im not sure of which firmware it is

its a 256m and is made by Langji-Tech. the chip inside is a ATJ2085
Thats the player...
http://www.langji-tech.com/index_product_v...e=1&imgid=96253 iv tried emailing the company but have had no replies.
any help will be much appreciated