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Our O2 Guru shows you how to change the position of notifications on screen in iOS 5

Our O2 Guru demonstrates Siri on the iPhone 4S.

The O2 Guru Team talk you through the features of iCloud.

The O2 Guru Team explain how iMessage works and how much data it uses.

Change Siri from a man to a woman on your iPhone 4S with this helpful O2 Guru video.

Our O2 Guru walks us through the latest features on iOS 5.

Doing business on the move? An O2 Guru demonstrates how to multi-task on an iPhone 4.

O2 Guru Pascha shows you how to avoid expensive data roaming charges on your iPhone when you take your iPhone abroad.

Find out how easy it is to backup your iPhone. Follow the step by step instructions from O2 Guru Matt to keep your iPhone up to date.

O2 Guru Kenny shows you how to use the App Store on your iPhone. Find out how to browse for and download thousands of apps.

O2 Guru Jess shows you how to switch your iPhone to flight mode.

Personalise your iPhone 4 with this guide to changing your wallpaper from O2 Guru TV.

O2 Guru Aminul shows you how quick and easy it is to send a photo from your iPhone.

A handy O2 Guru TV guide to changing the ringtone and text alert on your iPhone 4.

If your iPhone is running slower than usual or has frozen, it might help to perform a soft reboot. O2 Guru Guarev shows you how.

Too many apps on your phone? Let the O2 Guru Scott show you how to delete some.

O2 Guru Adam shows you how to use your iPhone as a mouse to control your TV and computer remotely from the comfort of your couch.

O2 Guru Matt shows you how to save a number from a text message using any iPhone.

Find out with O2 Guru Scott how easy it is to save a phone number from an incoming call on any iPhone.

Create and save new contacts for iPhone using O2 Guru Matt's simple step-by-step process.

Learn to set a passcode on your iPhone with this handy demonstration by O2 Guru Guarev.

Learn how to connect your iPhone to a Bluetooth device

O2 Guru Adam demonstrates how to sync your iPhone wirelessly using Google Sync - a free service provided by Google to synchronise your contacts, email and calendar on your iPhone.

O2 Guru Matt demonstrates how to set up Wi-Fi on your iPhone. These simple step-by-step instructions work well with any iPhone.

O2 Guru Pieter shows you how to set up email on iPhone. Set up your iPhone to send and receive emails from all your email accounts.

O2 Guru Pieter demonstrates how to connect to a Wi-Fi network on your iPhone 4 and use Facetime to video chat.

O2 Guru Pieter shows you how to activate your iPhone 4 by first inserting the SIM card and then connecting to iTunes.