Need firmware for iWin mp3/mp4 player

Hello, new problem. My uncle has asked me to fix his iWin media player. It plays it all and has an inbuilt fm transmission to listen to his music through his stereo. However, he only had it about a week and the screen froze on the menu. Same problem over and over. I've tried upgrading the firmware from firmware I've downloaded but its not specific to iWin and now the screen just shows white. I'm aware that this company don't have the most magnificent reputation but really want to do this for my uncle as he's done so much for me. Anybody any idea what chip is in the thing. Cannot get the board out of the shell at all, think its superglued in! Any help would be great. Ps, its still possible to access the files stored on it through the computer and also it does still power up, its not dead yet!!!