iMessage from blue to green

The person on the other end may have iMessages turned off

Kamilla36 wrote:

That’s not the case because these recipients of mine confirmed that they are home and connected on their own wifi, and it happened to many of my iPhone friends the whole day. So that would be impossible .

it is a glitch but don’t know how can apple fix this

No it's not a glitch, I already told you why, you can read for yourself here If you can't send or receive messages on your iPhone or iPad - Apple Support

Kamilla36 wrote:

I have tired everything

software update

turned phone off back on

iMessage turn off them back on in settings

nothing helped

anyone knows what is THE WAY to FIX this issue?

iMessage will send as a text message when it it is unavailable this is either due to you or the recipient is in a area with a weak wifi/cellular signal or has imessage turned off.

Kamilla36 wrote:

Som similar happens to my iPhone when I go to over seas and place another county’s phone card into my phone. After that my iPhone is a mess

why does that can even happen?

that should not interfere with the iPhone processing center/brain. Seams like overall iPhone has become not as good of a phone that the price they ask for it. It’s a headache now to get back those messages which for work would be so important for me to leave voice text and I can’t.

Sorry that has nothing to do with Apple or your iphone, if you travel overseas and insert a different phone carrier sim in your, you need to talk to your phone carrier to resolve the issue.