The iOS 4.0.1 is being rolled out to iPhone 4 owners worldwide. The update is available via iTunes and is a whopping 579 MB. We are attempting to install the update right now. Will update once it’s complete. And this update is not just for iPhone 4 but also for iPhone 3G and 3GS . Anyone updated their iPhone 3G, 3GS or 4 to iOS 4.0.1 ?
Make sure you take a backup of your phone and apps before the update.
Here is the changelog from iTunes about the update. There is nothing significant apart for the new bars used for displaying the signal strength !
iOS 4.0.1 Software Update for iPhone
This update contains bug fixes and improvements, including the following:
• Improves the formula to determine how many bars of signal strength to display
Products compatible with this software update:
• iPhone 3G
• iPhone 3GS
• iPhone 4
For feature descriptions and complete instructions, see the user guides for iPhone at:
For more information about iPhone, go to:
To troubleshoot your iPhone, or to view additional support information go to:
This update contains security content originally included in previous iOS Updates. For more information, please visit this website: