Apple iOS 5.1.1 for iPhone 4 (GSM)

 

Apple iOS 5.1.1 for iPhone 4 (GSM) | 783 MB

This update contains improvements and bug fixes, including:
iOS 5.1.1 is out: fixes iPad network switching, Safari syncing, AirPlay, HDR

According to release notes accompanying the update, it contains the obligatory improvements and bug fixes, including:
• Improves reliability of using HDR option for photos taken using the Lock Screen shortcut
• Addresses bugs that could prevent the new iPad from switching between 2G and 3G networks
• Fixes bugs that affected AirPlay video playback in some circumstances
• Improved reliability for syncing Safari bookmarks and Reading List
• Fixes an issue where ‘Unable to purchase’ alert could be displayed after successful purchase

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