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    I can't send a text message or make a call (Xperia Ear)

    Arrow left Xperia Ear support overview
    You might experience that when you try to send a text message or make a call using Xperia™ Ear, you get an error message saying Unable to use this function. The number of saved contacts has exceeded the limit. This is because the number of saved contacts has exceeded 2500 contacts, the maximum number of phone book contacts.
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    On your Xperia™ device, go to Settings > About phone/tablet > Model number
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    On your Xperia™ device, go to Settings > About phone/tablet > Model number