1 Reply Latest reply: Mar 31, 2011 4:01 AM by wjosten
sakumar9 Level 1 (0 points)
I have iOS 4.2.1 installed on my iPhone 3G. I am not very happy with the performance, so I would like to downgrade to 3.1.3. Can anyone help me here about how can I do so?

Also, I don't have any backups from 3.1, so will I be able to retain the data that I currently have in my phone??

Please help...

3G, iOS 4, 4.2.1