The OS 3.1.2 update is for bug fixes not new features and it includes the following fixes:
- Resolves sporadic issue that may cause iPhone to not wake from sleep
- Resolves intermittent issue that may interrupt cellular network services until restart
- Fixes bug that could cause occasional crash during video streaming
According to Apple, iPhone OS 3.1.2 is compatible with the iPhone, iPhone 3G, and iPhone 3GS. Users can update via iTunes - just connect your iPhone or iPod Touch and click the update button. The update is approximately 270-310MB depending upon device. Apple released iPhone OS 3.1 about one month ago.
Once finished your iPhone will restart. You will be alerted about a Carrier Settings update. This will upgrade the US iPhone OS 3.1.2 to AT&T carrier settings version 5.6. There is no reboot required after updating the carrier settings.
We have experienced the issue where the iPhone would not wake from sleep and it then had to be reset. And we have not run into any issues on the iPod Touch (2nd Generation).
Once we have a few days usage with the updated devices we will report our results.
But it wasn't fixing wi-fi issue :(
Posted by: iPhone Users | November 11, 2009 at 11:51 AM