Apple has
released iOS 9.3.5 to the public for the
iPhone, iPad, and iPod touch which provides an important security update for
your iPhone or iPad and is recommended for all users.
iOS 9.3.5 is
available via an over-the-air update or through iTunes for iPhone, iPad and
iPod touch. You can update by navigating to Settings app > General >
Software Update > Install or through iTunes by connecting your device
directly and manually.
It’s a really simple and different method for installing iOS 9.3.5 firmware on iPhone, iPad and iPod touch via iTunes and through OTA(Over The Air).
It’s a really
simple and different method for installing iOS 9.3.5 firmware on iPhone, iPad
and iPod touch via iTunes and through OTA(Over The Air).
Via OTA:
Go to Settings
— General — Software Update
 and Hit download and Install.
It’s a really simple and different method for installing iOS 9.3.5 firmware on iPhone, iPad and iPod touch via iTunes and through OTA(Over The Air).

If your device is jailbroken then the steps mentioned above does not apply. So
you need to install directly or manually from iTunes as follows;

Via iTunes
Direct Method:
Connect your
device to iTunes> Select your device> And hit restore if you want clean
iOS 9.3.5 or hit update if you want move from previous iOS version.



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It will first
download the ipsw firmware file and it begins with the restore process. But
while doing this you need good internet connectivity. If you lose your internet
connectivity you cannot resume your download. So it’s better to restore or
update your device via iTunes manually.
Manual Method:
Simply Download
the .ipsw firmware from our download page — Open
iTunes — Go to Summary of your iPhone — Hit Shift key
and Click on Restore iPhone or Update iPhone.
It’s a really simple and different method for installing iOS 9.3.5 firmware on iPhone, iPad and iPod touch via iTunes and through OTA(Over The Air).

Note that restore means clean iOS 9.3.5 update and update means just moving
from previous iOS version to iOS 9.3.5 update.

After that select the downloaded .ipsw file and you’re done. The restoring
process takes a while so dont panic. After rebooting several times that your
device will be loaded with the latest iOS 9.3.5 software.

Note: Backup
your device before performing this action