I have the same problem
My Kindle 3 just have the same problem with you, Lacrymology. I live in Indonesia, and no Amazon Rep here. May be this is the same problem.
Following some suggestions "hard reset" for 20,30,40, etc" seconds didn't help.
I noticed that the green light is gone, no wonder it can't be hard reseted.
So, I opened the case, measure the battery. Well the battery is fine. I recharged, as usual yellow light is on. Recharging worked very well. Again, after the battery is full, no green light, no yellow light, in fact no light at all, it just dead.
any ideas ? (I just know that this device is still ok, it just got frozen, somewhere...)
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