How do I access OS updates for my iPad. I have version 4.2.1 and I'd like to upgrade.
iPad, iOS 4.2
Plug your iPad into the computer you used to set it up. Update your iTunes. Backup your iPad. then use iTunes to download and install the update.
See the chart below to determine whether you can upgrade your device and what you can upgrade to. If you do not have a Software Update option present on your iDevice, then you are trying to upgrade to iOS 5 or higher. You will have to connect your device to your computer and open iTunes in order to upgrade.
IPhone, iPod Touch, and iPad iOS Compatibility Chart
Device iOS Verson
iPhone 1 iOS 3.1.3
iPhone 3G iOS 4.2.1
iPhone 3GS iOS 6.1.x
iPhone 4 iOS 7.0.x
iPhone 4S iOS 7.0.x
iPhone 5 iOS 7.0.x
iPhone 5c iOS 7.0.x
iPhone 5s iOS 7.0.x
-------------------------------------------------------
iPod Touch 1 iOS 3.1.3
iPod Touch 2 iOS 4.2.1
iPod Touch 3 iOS 5.1.1
iPod Touch 4 iOS 6.1.x
iPod Touch 5 iOS 7.0.x
-------------------------------------------------------
iPad 1 iOS 5.1.1
iPad 2 iOS 7.0.x
iPad 3 iOS 7.0.x
iPad 4 iOS 7.0.x
iPad Mini iOS 7.0.x
iPad Air iOS 7.0.x
=====================================
Select the method most appropriate for your situation.
Upgrading iOS
1. How to update your iPhone, iPad, or iPod Touch
4. iPad Support
a. Updating Your iOS to Version 6.0.x from iOS 5
Tap Settings > General > Software Update
If an update is available there will be an active Update button. If you are current,
then you will see a gray screen with a message saying your are up to date.
b. If you are still using iOS 4 — Updating your device to iOS 5 or later.
c. Resolving update problems
How to update iPad operating system from 4.2.1?
