The need for upgrading the firmware is not something urgent, as long as there is no complaint against the phone is used. Apart from all that, replace the old with the latest firmware it is our right as the user's mobile phone. Here is a list of firmware for the iPhone. After downloading the desired firmware below, you can shift-click (PC) or option-click (Mac) the Restore or Update buttons in iTunes. A file dialog will open and let you choose the downloaded ipsw-file.
iPhone
- iPhone (1.0.1/1C25)
- iPhone (1.0.2/1C28)
- iPhone (1.0/1A543a)
- iPhone (1.1.1/3A109a)
- iPhone (1.1.2/3B48b)
- iPhone (1.1.3/4A93)
- iPhone (1.1.4/4A102)
- iPhone (2.0.1/5B108)
- iPhone (2.0.2/5C1)
- iPhone (2.0/5A347)
- iPhone (2.1/5F136)
- iPhone (2.2.1/5H11)
- iPhone (2.2/5G77)
- iPhone (3.0/7A341)
- iPhone 3G (2.0.1/5B108)
- iPhone 3G (2.0.2/5C1)
- iPhone 3G (2.0/5A347)
- iPhone 3G (2.1/5F136)
- iPhone 3G (2.2.1/5H11)
- iPhone 3G (2.2/5G77)
- iPhone 3G (3.0/7A341)
- iPhone 3G S (3.0/7A341)
iPod Touch
- iPod touch 1G (1.1.1/3A110a)
- iPod touch 1G (1.1.2/3B48b)
- iPod touch 1G (1.1.3/4A93)
- iPod touch 1G (1.1.4/4A102)
- iPod touch 1G (1.1.5/4B1)
- iPod touch 1G (1.1/3A101a)
- iPod touch 1G (2.0.1/5B108)
- iPod touch 1G (2.0.2/5C1)
- iPod touch 1G (2.0/5A347)
- iPod touch 1G (2.1/5F137)
- iPod touch 1G (2.2.1/5H11)
- iPod touch 1G (3.0/7A341)
- iPod touch 2G (2.1.1/5F138)
- iPod touch 2G (2.2.1/5H11a)
- iPod touch 2G (2.2/5G77a)
- iPod touch 2G (3.0/7A341)
iPod
- 1G/2G (1/1.5)
- 3G (2/2.3)
- 4G (10/3.1.1)
- 4G (4/3.1.1)
- 4G Photo/Color (11/1.2.1)
- 4G Photo/Color (5/1.2.1)
- 5.5G (25/1.3)
- 5G (13/1.3)
- 5G (20/1.3)
- Classic (24/1.1.2)
- Classic 2G (33/2.0.1)
- Mini 1G (3/1.4.1)
- Mini 1G (6/1.4.1)
- Mini 2G (7/1.4.1)
- Nano 1G (14/1.3.1)
- Nano 1G (17/1.3.1)
- Nano 2G (19/1.1.3)
- Nano 2G (29/1.1.3)
- Nano 3G (26/1.1.3)
- Nano 4G (31/1.0.3)
- Shuffle 1G (128/1.1.5)
- Shuffle 1G (129/1.1.5)
- Shuffle 2G (130/1.0.4)
- Shuffle 2G (131/1.0.4)
- Shuffle 2G (133/1.0.4)
- Shuffle 3G (132/1.1)

Thanks for sharing all these links I would like and eager to best deal for new release iphone.
Interesting article you got here. I'd like to read more about this topic. The only thing I would like to see here is a few photos of some devices.
Alex Kripke
Phone jammers