Can't send text to specific contact, "error 3"

[mrknowitall526]

Randomly yesterday, I get error messages when trying to send an SMS to a certain contact. They have an iPhone, I have an HTC 10. It was working fine, in the middle of a conversation, and suddenly I now get "Can't send message with Sprint, error 3" every time.

 

However, I am able to send MMS messages, either pictures or in part of a group text.

 

Tech support has a ticket going but does anyone have any ideas? I've done so many profile and PRL updates already as per their troubleshooting suggestions.

 

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[jefbal99]

I had this texting my mom once.  If I remember correctly, I did a reboot, PRL update, network services update, and a few airplane mode cycles.  Then it started working again.

[belusnecropolis]

I deleted the contact then scrtn, restart and added contact again fixed it for me a while back.

[mrknowitall526]

I forgot to report that it just randomly corrected itself ??‍♂️

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