MicroPython Forum (Archive)

Problem solved: Cause is faulty USB cables for me too. After trying the DFU mode fix, I noticed that I had used a different USB cable. Went back and checked the other cables I had tried - with those it does not work. So out of 3 micro-USB cables I have, only one works. (never noticed this before as ...

... OS X version 10.9.2, but BTW it was also not showing up under Linux with a lsusb

But whoohooo, shorting the DFU pin lets it show up as a USB device on my Mac under System Information. So will now try and figure out how to do a re-flash the firmware.

Thanks for the replies. Yes, I had tried the reset switch - makes no difference. Tried a different USB cable, no difference. Tried with a microsd card containing a simple script switching on the two leds - success! So the board executes code from a card. At least there is that! :-) However it does n...

Even after rebooting, doesn't show up as MSD or under the /dev/ tree.
Might mean my board is b0rked DOA.

It does not show up in the /dev/ tree ether .
Will try a reboot and see if that helps.

Hi All, I have just received my board in the mail, very excited about it. As a quick test to see if it works, I have plugged it in via a USB cable to my laptop, and it does not show up as a Mass Storage Device in the Finder. The moment I plug in the cable to the board, the LED blinks once, but then ...