You can update your iOS device (iPhone, iTouch, iPad) in two different ways: through the Settings app or through iTunes.
Through Settings (recommended):
Note: this method only works if you already have iOS 5 or above. To see which version you have, go to Settings > General > About > Version.
Simply tap the Settings app, then go to General > Software Update. It will either say that your software is up to date or give you an update. If it tells you there is a new update, download and install it. Your iOS device will restart itself and boom! You have the latest version of iOS.
Through iTunes:
Plug your iOS device into your computer. Click on the device on iTunes, and click "Check for Update". Then download and install it to your device. This method is a little slower than the other one, and your computer must remain powered on for the entire update, but it gets the job done.
Plug your device into iTunes (on your computer) and click the update button. It should be in Summary.
If you have iOS 5, then you can update it from your device in Settings.
if yOU jailbreak it you can jailbreak it at any computer service shop
You can upgrade ios with itunes or if you have ios5.x, you can also upgrade your device os via wireless.
Yes you can.
no
i saw a guy upgrade his 2g all the way up ios 4.3 so i think you can upgrade yours up to the latest
Click on 'Update' in iTunes!
its simple just go to settings,general,software update then it should upgrade it.But i woulden't because it crashes loads and it is loads slower than ios 5.1.1
You have to upgrade to iOS 4 Firmware for free
No.
Upgrade to iOS 4 in itunes.
Yes
iOs 5 comes out Oct 12 2011. it will be shipped with all devices.The devices that will be available for upgrade are:Iphone- 3Gs and Iphone 4Ipod touch 3rd and 4th geniPad 1 and 2The IOS is available now via upgrade.
iOS 5 is only available to iPod Touch 3rd Generation and Above. If you are eligible, plug in your iPod into iTunes and it should prompt you to upgrade to iOS 5.
Is there enough internal memory on your iPhone??