Hopefully this is the right forum for this...!
When I was trying to downgrade my iPhone from 4.0 to 3.1.2, I had a real issue finding a decent guide which explains everything in one place. So, hopefully, this video should help anyone who was in the same situation as me! It's a short 5-minute guide on how to downgrade the iPhone from 4.0 to 3.1.2 (the same method should work for 3.1.3, too!). All the tools I used are available in the description.
Hope this helps! Let me know if it's missing anything, or if it just helped you out
http://www.youtube.com/watch?v=v-iQAY08zzg
When I was trying to downgrade my iPhone from 4.0 to 3.1.2, I had a real issue finding a decent guide which explains everything in one place. So, hopefully, this video should help anyone who was in the same situation as me! It's a short 5-minute guide on how to downgrade the iPhone from 4.0 to 3.1.2 (the same method should work for 3.1.3, too!). All the tools I used are available in the description.
Hope this helps! Let me know if it's missing anything, or if it just helped you out
http://www.youtube.com/watch?v=v-iQAY08zzg