Ios5664v5661wad Updated -

Unlikely, but could be an obscure, undocumented debug string.

) or known hardware serial numbers, it could be one of the following: A Private Firmware Version: ios5664v5661wad updated

Given the way you've presented this information, here are a few possibilities: Unlikely, but could be an obscure, undocumented debug string

: Performance tweaks for specific hardware configurations. Key Changes and Improvements but could be an obscure