yes, you can. when Apple update iphone software, total volume is bigger because they deliver entire OS system for updating. so if you update from 1.0 to 3.0, it will be OK (3.0 is including everything beyond 1.0, 2.0).
yes, you can. when Apple update iphone software, total volume is bigger because they deliver entire OS system for updating. so if you update from 1.0 to 3.0, it will be OK (3.0 is including everything beyond 1.0, 2.0).