Many users have been reporting problems with the iPhone firmware 2.2 upgrade from Apple. It may be that the best way to solve these problems is to take a step back and downgrade to firmware 2.1. Others inadvertently upgraded their phones when syncing to iTunes on their computer and for whatever reason would like to revert.
The process is relatively simple and should bring back the 2.1 version OS to your iPhone. Performing these steps on an iPhone 3G may work, however this article does not cover reversing the 3G baseband update included in firmware 2.2. Remember, taking these steps is at your own risk, and any hacking of the iPhone could render your remaining warranty invalid.
Hot on the heels of the latest iTunes update (8.0.2) the latest iPhone firmware (2.2) was released early this morning. It appears there are some pleasant surprises, as some unexpected features have been added, including a 3G baseband update. This update will not affect first generation iPhones but promises to reduce dropped calls and call setup failures on 3G models.
Other unexpected improvements include improved sound quality of Visual Voicemail messages, enhancements to Mail, and a new use for the Home button. Now from any Home screen pressing the Home button will display the first Home screen. This is a simple change that will cut down on tiresome swipes between screens.
Three more days until the latest iPhone software release. Ever since the September release of firmware 2.1 there has been speculation of what features might be added to 2.2. Confirmed improvements mostly revolve around the maps application, including pedestrian and Google Transit directions, Street View, and location sharing.
Firmware 2.2 also includes improvements to the MobileSafari browser, support for audio input from third-party devices, and over-the-air (OTA) podcasts. Downloads of audio or video podcasts will be limited to 10MB file sizes when using 3G or EDGE, similar to app store downloads.
The beta 2 release of iPhone firmware 2.2 is here. There are major improvements to the Maps application. Directions can now be found in three different modes, for driving, mass transit, and pedestrians. Street View has also been added, and allows the user to see street level photographs of a location just like Google Maps on the web.
When getting public transportation directions, subways and buses are both included along with scheduled times from Google Transit when available. Want to send your location to someone you're supposed to meet? Location sharing is another built-in feature that makes this easy.
Apple has seeded iPhone OS 2.2 beta 1 firmware to developers for "compatibility testing." Along with the new firmware they have also released iPhone SDK build 9M2611 beta. Most of the speculation circles around a few key features that were missed in the 2.1 upgrade. Of course, it seems Apple had its hands full with connectivity issues and a long list of usability problems that had to be addressed first.