Firmware Downgrade Lockout?
Hey guys, I am curious about the Droid 2 and how it prevents firmware downgrading. Specifically, why it can't be downgraded from the current Gingerbread version (system version .629) to one of the prior versions (.608, .621, etc.). If custom firmwares (i.e. CyanogenMod) can be installed, why can't older stock firmwares? How is the phone "aware" when you install an older firmware, even though the memory has been wiped? Does the bootloader have a protected area of memory reserved for keeping track of what the latest firmware installation is?