After iPhone 3G users have upgraded to iOS4, they couldn't be more excited than ever. People constantly post their satisfaction of iOS4 on Twitter. From the 22nd of June, iPhone 3G users are officially able to upgrade their operation system and they are available to use all the functions that iPhone 4 has, but the video call.
So far, users who have upgraded thier iPhone iOS 4 fairly easily as the new version is more stable than the previous one and enhanced its animation, so it is very fast to operate. Also wallpapers can be specified by the user. Now any picture can decorate the main screen. Traditionally, the initial 'lock screen' was only available in custom screen versions.
Well, there is a weak point. Although it is fast and easy to use, the battery is still a big problem for iPhone.
How to upgrade it
First of all, you download the 9.2 version of iTunes. Then a pop-up screen, which explains the update process, will show. After the download of iOS4 is done, iPhone firmware updates will be conducted. When it is done, the computer is going to reboot. It is simple and easy. Just some applications work perfectly at the moment. But it is planned to be improved.
