I had a properly functioning phone upto last week and then all of a sudden I'm facing horrible network issue in my Samsung M31, possibly after the latest security patch update.
The service centre is telling me that this issue has happened to all M series phone and I have to change my motherboard.
We acknowledge your query and apologize for the inconvenience caused to you and will surely assist you regarding the same. We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible.
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