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iPhone Text Messages do not send
When my iPhone is connected to the T-Mobile 5G Hotspot, I cannot send text messages from the iPhone to non-iPhone users. There is just a “message unable to send” error.
IMessages and Android don't play well with each other.
You might want to go to the Apple forum and see if there's a fix there.
Are you using iMessages? If so try using a 3rd party sms app to see if it will go through.
