If I buy a phone that does not have the most current version of the Android OS can I upgrade the OS? Are OSs generic, i.e., can the same version of an OS be used on different devices? Does a given version of an OS have to be adapted by Verizon before it can be installed on a Verizon device or can I simply install a given version directly from Android/Google myself?
I'm thinking of getting a DROID 4 and want to know what is possible.
Thanks.