Here are the commands to reset the flash counter. This works on my VZW rooted phone. Since all of the other variants have a very similar (same?) partition setup, this "might" work for them as well ("might" is the key word).
I take no responsibility for you voiding warranty.
I used this post as the basis for my theory and then used my phone as the test for said theory: http://forum.xda-developers.com/show...0&postcount=67
The "'\x00'" portion tells it what resets it to 0. If you wanted to be funny, you could set it to a different number.
echo -n '\x01' | dd obs=1 count=1 seek=4193796 of=/dev/block/mmcblk0
I can only confirm that this works on the VZW variant. Until I get some dumps of the other variants, I can only assume it will work for them.
TRY AT YOUR OWN RISK!!!!