Apple just released its iPhone 2.2.1 software update last Tuesday. There’s nothing to get excited about since this latest update has no new significant features except fixes and minor improvements. You can update your iPhone to the latest firmware by simply connecting your device to your computer. iTunes will take care of the download and installation right after you confirm to upgrade your iPhone.
Speaking of the update, it improves Safari’s stability and fixes image issue in which pictures saved from Mail don’t display properly in the Camera Roll. That’s it! Though it has been much rumored that the addition of support for push notifications will be included, it’s simply not in this update.
Don’t worry, it will definitely come in the future, perhaps along with Bluetooth feature, who knows :)
For those having trouble to update it via iTunes (like me), you may download directly via the following links
Both download links have resume support, so you may need to use any download managers to handle the download. Once the download is completed, plug in your iPhone to your PC. Press and hold “shift” button while clicking on the update button (iTunes interface). This will effectively open a windows popup where you can locate the downloaded firmware. The rest is pretty self-explanatory.