Selling old iPhones on eBay -- update the OS first?

[cellulartalk]

I have a couple old iPhones that were laying around, and I'm preparing to sell them on eBay. It's a mixture of a few different models, and at different OS levels (but none of the OS's are 100% current). I was wondering -- is it best to leave the OS and modem firmware exactly where it is, just in...

More... (http://www.howardforums.com/showthread.php/1764061-Selling-old-iPhones-on-eBay-update-the-OS-first?goto=newpost)

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