Verizon No Service after returning from overseas

I spent 2 weeks in Australia where I used an Optus Prepaid sim. On return to the USA I inserted my Verizon sim back in, but have no service. My wife went through the same process (Optus Sim followed by Verizon) and her phone works fine. We both have 6S phones, and all our settings are identical except for Mobile Data Options > Voice and Data > LTE, VoLTE On. Hers is set to On, and mine is Off. When I try to switch it on I get an error that says "Cannot Activate LTE calls. To enable LTE calls on this account, contact Verizon". I suspect my phone performed an IOS update while we were overseas. My wife's phone didn't, which may have triggered the issue.


I've worked with a number of tech support personnel at Verizon to fix this but had no luck. I've performed many many network resets, reset all settings, and even done a factory reset with no improvement. If I put the Optus SIM back in it works fine - connecting through AT&E, but calls and data usage would cost a fortune if I were to use it.


Any ideas?

iPhone 6s

Posted on Oct 12, 2019 2:26 PM

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14 replies

Oct 12, 2019 2:59 PM in response to Lawrence Finch

Ah ok - thanks for that. I've left "About" open for a minute and had no prompt to update carrier settings. I've been to Verizon (they had no idea - they're suggesting it's an Apple issue, not a verizon issue) and have a new SIM, but there's been no improvement.


What does it mean to retrovision the phone account? They've reentered my IMEI number to update the account/profile - would that be the same thing?


Thanks very much for your help!

Oct 12, 2019 2:31 PM in response to Goo_74

Go to Settings/General and scroll to the bottom. Check for a Profile (if it exists it would be right below VPN in the menu) and delete an Optus profile if you see one.


Also check for a carrier update from Verizon - go to Settings/General/About. If there is a carrier update you will be prompted to install it. While there check the iOS version, and compare it you your wife's in the same place.

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Verizon No Service after returning from overseas

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