Apple Releases iOS 9.2 - Update iPhone Safely

Apple has updated the official version of iOS 9.2 for the iPhone recently, I think it’s a great improvement, which has added a number of features.

The iOS 9.2 update file size is about 270MB. And iOS 9.2 version has added these features:
1. Improve Apple Music playlists and allows users to save song offline. The classical music catalog in Apple Music has been improved with works, composers, and performers;
2. Add the Mail Drop for mail which can can send large attachments up to 5GB in size;
3. iBooks supports 3D Touch, which allows users to peek and pop into pages from the table of contents, notes and bookmarks, or search results with force press gestures;
4. Add the new function - "USB Camera Adapter", which means that by the Apple Lightning Flanagan connected USB cable, you can directly import photos from camera or U disk to iPhone (this function requires at least iPhone 5 or later models).

5. Add NumberSync service, which is an expansion of Wi-Fi calling.
iPhone Users running iOS 9.2 can open the iPhone, go to Settings > Phone > Wi-Fi Calling. And then tap on “Add Wi-Fi Calling For Other Devices”, agree to the terms and conditions, and Wi-Fi Calling will be enabled for other devices tied to your iCloud account.

In addition, iOS 9.2 also fixes a lot of bug. The update change log has 4 pages. This update will solve some small problems which troubled most of iPhone users. For example, take music when listening to music and then return to music which cannot continue to play anymore.

The update is currently available to all users with an iPhone 4s or later models and can be downloaded over-the-air by going to Settings > General > Software Update. But jailbreak users don’t update the system directly; otherwise the iPhone will not start when you restart it.

You could have a look at this detailed guide:
Upgrade to iOS 9 without Losing Any Data

Another important note: Make sure you have backed iPhone well before updating. You can still use FonePaw iOS Transfer to help you backup important data on iPhone safely.