iOS 5.1.1 has just been released by Apple for its iPad (1st, 2nd and 3rd generation), iPhone (3GS, 4 and 4S) and iPod touch (3rd generation and later). It can be downloaded from iTunes by connecting your preferred Apple device to your computer as well as from the “Software Update” feature on your device. (The software update feature may not be available for some older Apple devices).
The update takes about 3 – 5 minutes to download (and another 5 minutes to update) over a normal home Wi-Fi connection (time could vary depending upon the speed of your internet connection). It is best to connect your device to a power source while updating and it will Restart after verifying the update. This update mainly contains some improvements and some important bug fixes, some of them being:
1. Many of you might have received an alert ‘Unable to Purchase’ even after a successful purchase. This update attends to this issue.
2. Fixes the bug that could affect Airplay video playback (not always)
3. Fixes bugs that in certain cases prevented the iPad or iPhone from switching between 3G and 2G networks
4. Improves the HDR option for taking photos.
5. Improves the reliability for syncing Safari bookmarks and Reading Lists
This update is available over-the-air for devices running on iOS 5 and above. It is a 54MB download for iPhone, and 42.5MB of iPad and 42.8MB of iPod touch.
Apple had originally introduced iOS 5 in October last year with iPhone 4S, while iOS 5.1 was released in March 2012.