Today I charge the n800, and I found in the right cnr,there always shows "usb device not supported".

At first time, I think it's just charging, can't use the usb connection.

And now, after rechraging, the info is still there!

What's going on ?

all the best !

Tiger

There was discussion of this problem yesterday, and Benson had an idea on the cause, though not a solution.

Well, a solution had been mentioned earlier in that thread; reboot. It's not very nice, and there's got to be something better, but that works for now.

This is going to sound really stupid, but first and foremost, turn the tablet on it's side and blow into the USB connector to make sure that there's nothing stuck in it. In my endeavors of creating the many hundreds of USB OTGs that are now circulating the community I've had small metal particles drift into there before and cause the OTG pin to short as Benson described. Not saying that's the cause, but definitely the easiest thing to check and possibly solve the problem (especially if it's still happening after reboot). Also double check to make sure that you haven't knocked the metal pins in the USB connector around, as it is physically possible to shift them accidentally while removing a USB plug on a funny angle (a tiny flat head screw driver will usually let you just tap the offending pin back into a straight position).
The message can also be caused by software forcing a rescan of the USB bus (possibly Canola does this from time to time?) but there are many possible causes for this and you simply have to troubleshoot by removing/closing software to see what's actually causing it.

Thanks,
-Rob

after reboot, this is still here. but after I use it for a while, then it is disappeared.

To Rob:

I never use OTG device since I own the machine, maybe there are sth wrong with the usb port pin, I check it later to confirm it.

Thanks a lot


Tiger