无信号（空信号）可以上网，但无法收发短信和接打电话
电信卡已在近期更换到 5G 卡，独立 5G （ SA ）和高清通话（ VoLTE ）均已开通
电信那边也联系多次，得不到解决（目前已投诉到工信部），苹果也联系过，感觉苹果和电信目前都搞不清情况，和客服都是无效沟通
这问题很烦人，开关飞行模式还不能解决，必须重启
我看 v2 里好像没人讨论，是电信用户不多吗？
网上其他相关的帖子：
- https://discussionschinese.apple.com/thread/253186368
- https://discussionschinese.apple.com/thread/253189446
- https://discussionschinese.apple.com/thread/253205256
- https://tieba.baidu.com/p/7554374409
- https://tieba.baidu.com/p/7554094660
- https://tieba.baidu.com/p/7553931241
- https://tieba.baidu.com/p/7561428575
- https://tieba.baidu.com/p/7562392003
- https://tieba.baidu.com/p/7553318868
- https://tieba.baidu.com/p/7552903726
- https://weibo.com/3877703534/KBm5FpPEy
- https://weibo.com/5853596543/KAVt34OGI
- https://weibo.com/6628678017/KAQgACgS0
- https://weibo.com/6276138171/KzYpjk7jI
- https://weibo.com/2797810277/KzROvxuG1
iPhone 13 Pro
iPhone 13 Pro Max
