下载校验与命令行
MD5
ee915cdbda3cb121d89e75b7b65b113b
SHA256
fdec486d498465a6ccb4ec004215fb95ae996b5b1f3ccc8171b00aa1612207fd
curl -O https://updates.cdn-apple.com/2020FallFCS/fullrestores/001-74349/0C621890-0FAD-44D1-892E-642285808D95/iPhone_4.7_14.2_18B92_Restore.ipsw
# 校验文件完整性
md5sum iPhone_4.7_14.2_18B92_Restore.ipsw # 期望 ee915cdbda3cb121d89e75b7b65b113b