mmi code invalid or connection problem
hi hope someone can help!
all my numbers on my phone come up unknown when they call so i dont know who it is, if i go into call log again all are unknown and if i press on them a notification comes up saying connection problem or invalid mmi code. its only recently started to do this but its a real pain because i need to ignore my x girlfriend lol. please help, it would be so much appreciated. thanks.
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