I've got a problem with my MP3. It's called Bellwood BMP 102.
"chip ALI DRE
M5661R B1"
I cant' find firmware for this player. I tried that:
http://www.apacer.com/en/support/downloads/AU522_FW_18.13.14.rar but there were any results. I used "MP TOOL" which is included in this link. I think the same firmware are in Grundig MP 600, WIWA WMP 501 and KORR KMP 221.
important! It's not a S1 player.