How I can change some contacts as sms into iMessage?
I using iMessage with friend, but today the message can’t send it and showing ‘not delivered ‘ it’s pop-up recommended me to send via sms instead so I clicked it. But another contacts are can text by using the iMessage and it showed blue color. How I can change friend’s contact back to iMessages? I’m trying to setting up by turn off/on iMessages but it isn’t working. Please help me, Thanks you.
Example
Friend’s contact that I clicked it to send messages via sms it’s show green
How i can slove it
iPhone 6s, null