需要:
- iTunes 11 http://www.apple.com/tw/itunes/download/
- 先用itunes來備份iPhone.
- 下載 ipsw (下載後跳躍前3步驟)
- iPhone 4S: (https://docs.google.com/file/d/0B-cZzi3BQTWAMHZ0MXNoNWtyMmM/edit?usp=sharing)
- iPhone 5 : (https://docs.google.com/file/d/0B-cZzi3BQTWAdVdBNzdyek5Wc2M/edit?usp=sharing)
1. 首先要有developer帳號,登入之後畫面如下
