blindahl

I've got a netduino 3 that I've been using successfully for a while now. Tried to connect it earlier this week for the first time in a month or so, and couldn't get it to connect with USB. I'd get one of 3 errors: (sorry for the vague wording, can't quite remember and it's worse now)

• Unknown device with "Device descriptor request failed"
• Unknown device with"Configuration descriptor request failed"
• "Netduino" with a yellow ! and "device could not be configured" when looking at the status

Got it to connect in bootloader mode, and tried re-applying the latest firmware (4.3.2.2). NetduinoUpdate tried to do it's thing, but said "Error: Verify failed". And now plugging it into USB normally doesn't do anything, although I can still get into bootloader mode.

Did I brick it somehow? Is there anything else I can try before giving up and ordering a new one? If not, is there any chance this is under warranty somehow such that I could get an RMA from adafruit for it?

brian

Are there measurements for the locations of the 3 mounting holes on the 3wifi? I'm 3d printing a custom box, and need to lay out the screw holes.

Has anyone had any luck using the Adafruit 16x2 I2C shields? I'm using one of these:

http://www.adafruit.com/products/772

along with the code from this post. I get the default "boxes" displayed on the lcd, so at least something is happening... but I don't get any backlight or other response from the display.

my code is something like:

lcd = new LiquidCrystal_I2C(0x20, 16, 2);
lcd.backlight();
write(bytes);

Any thoughts on what to try?

brian