After so many
beta testing, Apple finally released iOS 9.3 at Apple Event yesterday. One of
the major feature os iOS 9.3 is Night Shift mode where the temperature of the
screen changes according to the day light situation. Other features included
are Touch ID in Notes app, Health app enhancement, built in Education app and
more.
It’s a really
simple method for installing iOS 9.3 firmware on your device.
If you’re device is not Jailbroken then, simply
Go to Settings
— General — Software Update and Hit download and Install.

If your device
is jailbroken then the steps mentioned above does not apply. So you need to
install manually.
Simply
Download the .ipsw from our download page — Open iTunesGo to Summary of
your iPhone
Hit Shift key and Click on Restore iPhone. After that select the
downloaded .ipsw file
and you’re done. The restoring process takes a while.
After that your device will be loaded with the latest iOS 9.3 software.
Note: Backup your device before performing this action
Also SEE