Hello there. So I decided to update my computer and iPhones operating system and everything is working normally except iMessages. I can send iMessages and normal SMS from my iPhone, but on my computer I can only send SMS's. Everytime I try to send a sms to a iPhone I get an error saying that the number I'm trying to reach is not registered. Now, the weird thing is that if I put the country code on the number, the iMessage is sent! That's a major inconvenient because we barely use the code country here and none of my contacts have it. Is there a way to fix this without having to edit ALL my contacts to add the country code? Thank you!