It's not a true upgrade, what they do is update the firmware on the phone from the r410 to the r450 firmware. There are some hardware differences on the phone that the firmware upgrade can't change, but the phone will run very similarly.
It's not a true upgrade, what they do is update the firmware on the phone from the r410 to the r450 firmware. There are some hardware differences on the phone that the firmware upgrade can't change, but the phone will run very similarly.