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andrewtune · 03-03-2014, 10:34 AM

Well, thanks to everyone for the helpful suggestions.

I replaced the batteries with 2 brand new ones each reading 3.0V+.

I followed Jonathan's instructions to the letter. I assumed they're intended for those with a cable: I have Harald's USB board. However, I assume using the Erase button is the same as shorting the top-right and bottom left of the six pads under the reset hole. Sadly, this did not help.

I then realised that my Windows machine is now not seeing the device at all. Sheesh... it get worse! Device manager is now showing NO PORTS at all. (If I plug other USB devices in, they show up, so it looks like the problem is not at the Windows end.)

Walter: your comments about "really reset" and really turn on. I've left it a couple of seconds in each case. Is that long enough?

Any other thoughts?