Apple iPhone 4 (iOS4)

Apple iPhone 4

iOS5 iOS4
If you don’t know your device’s software version, you can check it by selecting Settings > General > About.

How to guides

Update phone software

You can check for available software updates for your phone and download them. Follow these instructions to update your phone's software.
Before you can update the phone software, you need to install the program iTunes on your computer.

It's also recommended that you back up the phone memory. Click here for more information.

Step 1 of 5

Start iTunes

Start the program iTunes on your computer.

Step 2 of 5

Connect phone and computer

Connect the data cable to the socket at the bottom of your phone and to your computer's USB port.

Step 3 of 5

Update the phone software

Depending on your settings in iTunes, the program may suggest to update your phone automatically.

Step 4 of 5

Update the phone software

To start the update manually:
Select your phone on the list of connected devices.

Step 5 of 5

Update the phone software

Select Check for Update.
Follow the instructions on the screen to update the phone software.

1. Start iTunes

Start the program iTunes on your computer.

2. Connect phone and computer

Connect the data cable to the socket at the bottom of your phone and to your computer's USB port.

3. Update the phone software

Depending on your settings in iTunes, the program may suggest to update your phone automatically.
To start the update manually:
Select your phone on the list of connected devices.
Select Check for Update.
Follow the instructions on the screen to update the phone software.

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