what is the best possible way to upgrade from 3.1.3 without losing any data..
can i simply back up 3.1.3 via itunes, then restore to 4.01 then restore back up from 3.1.3?
i have tried this sometime ago it gives me error restoring it.. how do i do this.. easy way pls!
can i simply back up 3.1.3 via itunes, then restore to 4.01 then restore back up from 3.1.3?
i have tried this sometime ago it gives me error restoring it.. how do i do this.. easy way pls!