sounds like you might need a replacement... perhaps someone else has another suggestion, but you have done a lot that was suggested in the thread i linked to...
i briefly scanned thru it again and you might try another battery if you have an extra, or flash from sD card, but other than that, um, looks like you might have device in "download mode"
Quote:
Originally Posted by ImCoKeMaN
This state is called download mode, i have 2 devices stuck in it and am working on a solution. It appears that the new GPS radios are protected from overwrite and some attempts to revert can cause this situation. My signature shows the way it happened for me.
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http://forum.ppcgeeks.com/showpost.p...9&postcount=18