i have bought this mp4 watch. it works fine but are there any way for me to extract, modify or backup its firmware ? i have search through this site but there no topic about it. i have also tried the s1fwx software but nothing happens. this watch plays SMV video file format and from the about page, i only get its version number : "2.106". the 2nd website says "Firmware can be upgraded free from website" but how ? can anyone tell me please ? thanks.