Iphone XS max Dual Physical Sim - network issues when both sims are in

Hi. I am having an issue with my network connectivity when both sims are operational. The issue is not persistent, but every few minutes or so, the network drops on my primary SIM and boots up again. I have tried disabling the secondary SIM by not unlocking it at startup, and used only the primary SIM. This seems to fix the issue, but defies the whole purpose of having a dual SIM phone.

Does anyone have similar problems? is there a fix for it, and are apple aware of this issue and are working on a fix?

Thanks

iPhone XS Max, iOS 12.1

Posted on Nov 7, 2018 6:23 AM

Top-ranking reply

SLM999

Level 1

20 points

Posted on Dec 29, 2018 5:06 AM

I did two things and seems to work fine.

1. Try “resetting network settings”. - the only draw back would be you would loose any saved wifi passwords you had before and thus you would need to reenter them as you connect to the wifi.

2. I switched the “Network Settings” to manual and selected the provider of my sims.

So far, things run well for me. I personally suggest you to try the above two as it really doesnt casue any inconveniences doing the above two steps.

View in context

17 replies

SLM999

Level 1

20 points

Apr 22, 2019 9:33 AM in response to klebengan

Yes I think so

Alejo®

Level 1

10 points

Feb 11, 2019 10:42 AM in response to Saimad

We definitely need Apple to provide an answer, this is definitely an issue for many people in the US and abroad.

I too bought the iPhone XS Max so that I can use a single phone when traveling abroad. I am using AT&T with an eSIM and Movistar on the physical SIM, and the problem is consistent, it doesn't matter which one I have as primary for voice or data, Movistar's physical SIM will stop working when switching from Wireless or if the signal is poor. The only way to get it to work is when I turn off the line and turn it back on after about 30 seconds. The problem is that sometimes the phone will give me a SIM card error, forcing me to restart the phone.

By the way, every time that the issue happens, Face ID will stop working and I have to reenter my PIN.

Current iOS at the time of this post: 12.1.4 (16D57)

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Iphone XS max Dual Physical Sim - network issues when both sims are in