Apple today released iPhone OS 3.1.2, addressing several issues regarding waking from sleep, network service disruption, and crashing during video streaming. iPhone users should connect their iPhones to iTunes and click the “Check for Update” button to obtain the new version.

This update contains bug fixes and improvements, including the following:

- 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

The update is compatible with all iPhone models and weighs in at approximately 240 MB.