Iphone 13 ProMax cannot make VoLTE call after upgrade to 17.4

iOS updates aim to enhance user experience, boost security, and fix bugs rather than disrupt core features. VoLTE issues after updates might stem from underlying, unmentioned factors. Updates won't typically alter personal data but may refine settings or features. Backup before major updates for safety. Review Apple's update details and backup advice for a smooth process.

Kindly consider checking your settings and addressing any device issues before attributing the issue to external factors. This could be a pure coincidence that the iOS update affected the iPhone basic call functions.

Before initiating a standard iOS update, it's advisable to create a backup. Have you completed this step? If yes, proceed with the restoration from the backup.

See what each update does: About iOS 17 Updates, About iOS 16 Updates, About iOS 15 Updates, About iOS 14 Updates, About iOS 13 Updates, About iOS 12 Updates, and so on...

So, in one post, you say SravanKrA is helpful and in the next, that they are not.... What happened in those five minutes?

super sophie wrote:

I have the same problem on a new phone with ios 17.1.2

The first thing you should do is update your phone to the current version of iOS, 17.5.1.

Next, what options you have to select a cellular network are entirely controlled by your carrier. Updating iOS should also give you the latest carrier settings. If you continue to have trouble with your cellular network, you need to contact your carrier.

What an helpful reply.

I have the same problem on a new phone with ios 17.1.2

SravanKrA’s Profile - Apple Community

What an unhelpful reply.

I have the same problem on a new phone with ios 17.1.2