Recently traveled to Hong Kong, picked up the dual physical SIM XS Max.
Have both my Asia SIM and US SIM installed. The Asia SIM works regionally in Asia, the US SIM only in the USA.
I have both SIMs installed and I am in Asia (Asia SIM connected, US SIM not able to register on the roaming carrier), the iPhone looses its connection while still showing up as connected to the carrier. I have to restart the phone to regain cellular action (voice and data)
I have the Asia SIM setup of primary, the US SIM as secondary.
When I remove the US SIM, this issue does not seem to happen.
New feature in the latest iOS (which I asked Apple why it wasn't there) is the ability to turn each SIM off or on. Seem when I turn the US SIM off, issue is also gone.
What happens to the traveler going in and out of coverage, does the iPhone stop working each time a SIM is unable to connect?
I have many dual SIM phones for the same reason I got this one, have never seen this kind of behavior. The iPhone should be able to manage one SIM not being able to register as that is why many people have dual SIM phones.
Have both my Asia SIM and US SIM installed. The Asia SIM works regionally in Asia, the US SIM only in the USA.
I have both SIMs installed and I am in Asia (Asia SIM connected, US SIM not able to register on the roaming carrier), the iPhone looses its connection while still showing up as connected to the carrier. I have to restart the phone to regain cellular action (voice and data)
I have the Asia SIM setup of primary, the US SIM as secondary.
When I remove the US SIM, this issue does not seem to happen.
New feature in the latest iOS (which I asked Apple why it wasn't there) is the ability to turn each SIM off or on. Seem when I turn the US SIM off, issue is also gone.
What happens to the traveler going in and out of coverage, does the iPhone stop working each time a SIM is unable to connect?
I have many dual SIM phones for the same reason I got this one, have never seen this kind of behavior. The iPhone should be able to manage one SIM not being able to register as that is why many people have dual SIM phones.