List of unsupported firmware

List of unsupported firmware by Apple Inc.

The following is a list of firmware that expired long ago.

iOS

• 4.0
• 4.0.1
• 4.0.2
• 4.1
• 4.2
• 4.2.1
• 4.2.5
• 4.2.6
• 4.2.7
• 4.2.8
• 4.2.9
• 4.2.10
• 4.3
• 4.3.1
• 4.3.2
• 4.3.3
• 4.3.4
• 4.3.5
• 5.0
• 5.0.1
• 5.1

iPod classic

• 1.5
• 2.3
• 3.1.1
• 1.2.1
• 1.3
• 1.1.2

iPod nano

1.3.1 1.1.3 1.1.3 1.0.4 1.0.2