No connection!

Hey- I'm having some trouble getting my Espruino working again.

I've been programming it on and off for a couple weeks now, but today I plugged it in and just got one red blink from the LED. I held down the reset button when plugging it it and got solid red and green, which the troubleshooting guide says is an ok boot loader, but no connection. I'm on a Mac and have had no driver issues so far, so I doubt it's that, and it's plugged directly into my computer, so it's not a cable.

Any ideas? dead board?

Thank you in advance for your help!

: jesse

If the LED flashes at boot, and both light when holding the button down then it's good news - the board is working.

The issue then is the USB. Maybe you could try cleaning the connector? The contacts are exposed so get dirtier than they would in a normal USB plug, and sometimes don't make contact.

Also, if you've been using Apple's random USB extension leads they have a bit in the back of them that can gouge stuff out of the back of the Pico's PCB. It's not a big issue to fix, but take a look at the back side of the USB connector and see if the paint has been scraped through.

Thanks for the quick reply!

Uh oh- it looks like it has... How do I fix it?

: j

Hey- saw your post over here: http://forum.espruino.com/comments/12537­960/
and was wondering if you could send instructions/pic for cutting the trace?

Thanks!

: j

Ok... So this is the kind of thing we're trying to fix:

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You see there are two small holes in the white area, just past where the scratch is? You need to cut across the board with a sharp knife between those and the end of the scratch.

In the picture below I cut a bit too close to the holes really - you could do it nearer the end of the board.

Basically cut once, then cut again at a slight angle so you remove a bit of the copper. If you've got a dremel or something that'd be perfect - just touch the board with it to cut the traces and you're sorted.

Hope that helps!

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Actually you only need to cut the one trace, but it doesn't matter if you cut all 3 and it's easier that way :)