Identify Problem with Aigo v002 series

jefferic

I tried to transfer some music to my Aigo v002 Mp3 player in FreeBSD 6.2, but some problems occured like below:

When I plugged it in, the system correctly recognized it as "<USB FLASH DISK 1.00> SCSI-0 device...", device name "da0"，details as "da0:umass-sim0", rate "1.0000 MB/s", so far so good. And directly then system reports "da0: uhub0 Port 3(Addr 2) disconnected", which only appears when device cease communicating with system or just physically disconnect from machine, and meanwhile my MP3 seemed to be restarted, just like I took betteries away and then get them in.

Is there someone got problem like that? I just doubt whether I should to have its firmware updated, or just to give up mounting in FreeBSD. I really don't understand what causes the problem, since I tried other MP3s with no problem at all. Moreover, this Mp3 is recognized well in Win and Linux.