I'm on Verizon Wireless in California, I got exactly the same message - "Sorry, this software download is not suitable for your device." when I put in my s/n.
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Certainly not for AT&T phones. Typed in my SN and got the following:
Sorry, this software download is not suitable for your device.
I'm on Verizon Wireless in California, I got exactly the same message - "Sorry, this software download is not suitable for your device." when I put in my s/n.