hi,

i had juz upgrade my ip4 firmware from 4.1 to 4.2, as wat i know, after upgrading the firmware, all the app, music, photos and etc will be wipe off and the fon will be reset...but, in my case, all my app, music and all the thing remain the same after the upgrade, except the firmware changed to 4.2..m i successfully upgraded the firmware?

Hi all,

I had downloaded the iphone 4 ios4.2 into my computer. How do i install tat ios to my iphone? coz when i double click the downloaded file it seem like no response....