4 IOS operating system is created for the iPhone, iPod Touch and iPad.
This operating system can be downloaded free of charge, but before you download, there are some things that need to be noticed, among others:
1. Readiness Checks Gadgets
IOS 4 can only be in use by some apple gadgets, including the iPhone and iPod Touch 3GS third generation.
While for the iPhone 3G and iPod Touch second generation, updates can be done but not all features will be available. For iPhone and iPod first generation, unable to use the IOS 4.
2. Readiness Check iTunes
You must have the latest iTunes (version 9.2) and also the Mobile Me Control Panel to use the iDisk feature.
3. Data Backup
Backup your data before you install the IOS 4, because if you install the OS 4, then your data you save will be lost, then it is highly recommended to backup the included image files.
4. Update Application
Once installation is complete, do the update for its application.
