I had problem on my Kohjinsha SX3WP12TH that can't use ethernet cable to plug-in. I spent 3 days to check what the problem was and think the wire inside may damage or no ethernet module inside. I took off the screw and can't see the module, saw only harddisk and some wire from the connector. I afraid to do something wrong then decide to stop doing that.
I phoned to my brother before I call to service to see what the problem was, my brother said that you need to check the bios, some bios can disable the module. Yah, after check the bios I found the ethernet module was disable then I turned on after that...
WOW, it work. My question is that why it's disable, any reason or just for power saving. I know that this model is for mobile and may not much need to turn on the ethernet, maybe for power saving.
By now, I can use ethernet cable and wifi for my Kohjinsha.
BTW, this model I bough in Thailand with Windows Vista since I can't see it anywhere outside Thailand.
I enjoy to use it now although it's slow CPU speed, just 1.33GHz but ok for me to carry anywhere
It's the same as this video review by jkkmobile.com