1、点击iPhone SE的”设置“。2、打开“设置”中的“通用“。3、点击”储存空间与iCloud用量“。4、点击”管理储存空间“。5、打开系统固件（ios10.3.3）下拉菜单,删除更新，完成。
KVS与completion handler同步失败
This allows you to fully synchronize the content between your projects. At the page with video screenshots, the tick was added for simultaneous selection of all screenshots for deletion. This is useful if you delete more screenshots, than you leave – in this case, it will be quicker to ...
不要用无线，苹果是有ip记录的，用流量激活就可以了