help!! Minmi M-270 firmware needed !!

[cool.kombo]

hi guys!
i have a Minmi M270 mp4 player and with 2Gb internal memory and a SD card slot... couple of days ago, when i connected to xp, it was getting detected and sumthing like "detected Rockchip ...... " was showing, but i cant tell u the exact Rockchip no. it was also playing the mp3's.

but after i formated the internal memory using FAT32, now when i copy mp3 or jpg files, its not detected in my player! its not even showing in the navigation menu of the player. but when i use the sound recorder utility, it is working perfectly and the files are showing in the navigation menu.

sometimes when i browse the internal memory using the player navigation menu, it starts showing a lot of folders with very weird characters names. i think the firmware needs to be upgraded..

guys i've tried mp3 utilities uptil 4.00 and none of them detects my player. but it is detected as a USB removable disk in my xp system... please help me in this.. i cant play any media files.. i also need firmware upgrade. please give step by step instructions for finding the firmware upgrades and also installing the upgrades... i'd be very grateful