iOS12.0.1通道关闭了吗?如何降级到iOS12.0.1? iOS12.0.1通道关闭了吗?iOS12.1有点卡可以降到iOS12.0.1吗?iOS12.1如何降级到iOS12.0.1? 2018-11-13 29729 标签: iOS12.0.1降级 iOS12.0.1升级 iOS12.0.1 iOS12.0.1通道 1