I tried to post the following as a new thread, but it doesn't seem to have passed moderation after two days, so I'll post here:

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After nearly 5 years of faithful use, surviving many drops and fumbles, the N900 has finally died. Well, it is at least paralysed. I'll explain.

I've always been careful with the micro-usb port, but never strengthened it in advance, as I see some have been recommending. That's a slight regret.

Anyway, it came off, so I temporarily ...

[This post turned out to be a duplicate, read on here: http://talk.maemo.org/showthread.php?t=93923 ]