topic Re: Cellular Data Not Working Upon Crossing Into The US in Get Support

Cellular Data Not Working Upon Crossing Into The US

LiEmZh — Sat, 30 Aug 2025 14:42:41 GMT

Hi everyone. I have a US-Canada data plan. My cellular data was working perfectly fine in Canada upon returning from a trip abroad where I used an esim app. Deleted the esim and esim app, everything worked fine. Today, after crossing into the USA, I turned Data Roaming on and I saw four bars and 5G appear again, but this time, nothing is working---no data, no texts, no calls. I also saw a notification saying something along the lines of "unable to connect to cellular data" or "unable to set up cellular data on this device" (I have an iPhone 15 Pro Max btw). How do I troubleshoot this? I desperately need this data to start working as I start my university school year in a few days.

Re: Cellular Data Not Working Upon Crossing Into The US

hairbag1 — Sat, 30 Aug 2025 14:45:52 GMT

@LiEmZh

go in to settings and do a network reset...see if that helps. You will need to remember your passwords as the saved passwords will be erased after reset.

Re: Cellular Data Not Working Upon Crossing Into The US

Chalupa_Batman — Sat, 30 Aug 2025 14:53:01 GMT

@LiEmZh wrote:
Hi everyone. I have a US-Canada data plan. My cellular data was working perfectly fine in Canada upon returning from a trip abroad where I used an esim app. Deleted the esim and esim app, everything worked fine. Today, after crossing into the USA, I turned Data Roaming on and I saw four bars and 5G appear again, but this time, nothing is working---no data, no texts, no calls. I also saw a notification saying something along the lines of "unable to connect to cellular data" or "unable to set up cellular data on this device" (I have an iPhone 15 Pro Max btw). How do I troubleshoot this? I desperately need this data to start working as I start my university school year in a few days.

Hey @LiEmZh

If you go into your settings and find which network you're currently on, change it to T-Mobile and then reboot. I connect to T-Mobile when in the US and never have a problem.

Re: Cellular Data Not Working Upon Crossing Into The US

colleeno — Sat, 30 Aug 2025 18:45:59 GMT

@Chalupa_Batman wrote:

If you go into your settings and find which network you're currently on, change it to T-Mobile and then reboot. I connect to T-Mobile when in the US and never have a problem.

There are areas in the US where there is no T-Mobile network available. It is best to leave your network selection on Auto.