USA Roaming.

[Priority]

I have someone who is currently in the United States, he switched to Public Mobile right before he left so that he'd have coverage and Data in the USA with the $50 for 40GB Canada-US Subscription.

He is now in the States and can currently only Text and Call, he has 'Data Roaming' enabled in Settings on his Samsung S21 but that still isn't making a difference.

His device is picking up on T-Mobile which is completely normal but Data and Multimedia Messaging are not working.

Any suggestions?

[softech]

@emmpeethree try disable 5G from network mode 

[emmpeethree]

very frustrating, only calling available on ATT and had to manually switch to T-Mobile for data to work

[Priority]

Yes Port was complete.

[Phil_Adelphus]

If he ported right before he left, is it certain the port was complete?  He can call and text but can he also receive calls and texts?

[Kicks]

Can also try the good old restart phone

[maple_leaf · Accepted solution]

Hello @Priority , In the Messages app, go to Messages Settings > Advanced, and turn on "Auto-download MMS when roaming". That should resolve the issue with not receiving multimedia messages while roaming. For network data, if data roaming is turned on and network is set to "Automatically select network", the phone should pick up either AT&T or T-Mobile, the two networks Public Mobile has roaming agreements with in the U.S. However, under "Preferred network type", it should be set to "5G (recommended)". This should allow the phone to connect to 5G whenever possible, or automatically drop down to LTE if needed. As @softech suggested, you can manually select either network to see if it resolves the data issue. You can also manually select the preferred network type. I've included links below to troubleshooting, AT&T coverage, and T-Mobile coverage.

U.S. Roaming Troubleshooting:
https://www.publicmobile.ca/en/on/get-help/articles/us-roaming-troubleshooting

AT&T Coverage Map:
https://www.att.com/maps/wireless-coverage.html
T-Mobile Coverage Map:
https://www.t-mobile.com/coverage/coverage-map

Hope this helps.

[softech]

and @Priority 

one more, better to disable 5G or try to set 4G/LTE

[softech]

@Priority 

Critical part to US roaming depends on T-Mobile coverage and whether he/she can connect to T-Mobile network or not 

If the phone is not connecting to T-Mobile or AT&T, change the Network Connection from Automatic to Manual and select T-Mobile or AT&T (Try BOTH)

Make sure  disable  mobile data limiter

Your friend can also try Reset All networks