"(Primary) Your sim sent a text message" iPhone popup
a message is popping up often says “your sim sent a text message” and goes away itself...its so annoying...how to get rid of this?
[Re-Titled by Moderator]
Question marked as
Are you trying to activate and deactivate iMessage often? Please do not do that. If not look for any third party apps downloaded recently, which may be configured to send text message.