I have the galaxy s10 plus and having similar issues. I cant send mms over wifi either. I also will have lte data then all of a sudden absolutely no service period. I restart my phone and its the same thing again. Ive never had this issue with my note 8. I have sprint as well. My friend last night at work who has sprint and an old apple generation had lte bars while I had no service at all for data, texting, and calls.
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