Kelly zhuang
- Forum posts: 10
Oct 28, 2015, 4:04:13 AM via Website
Oct 28, 2015 4:04:13 AM via Website
when i upgrade to 9.1, i find it's slower, i want to degrade to 8.3. how to do?
efadafe
- Forum posts: 15
Oct 30, 2015, 2:59:44 PM via Website
Oct 30, 2015 2:59:44 PM via Website
I think that you need iTunes and ipsw file with system image for your device. As far a I know ipsw file with system can be legally downloaded if you are in iOS Developer Program.
