Originally Posted by trparky
The reason why you are unable to receive text messages from your friends who have iPhones is because you once had an iPhone that was attached to iMessage.
This issue has to do with Apple's implementation of the iMessage protocol. It binds device's and/or SIM card's unique ID to their servers (using the UUID from the device and the SIM ID) and doesn't release them easily.
So what happens is that Apple iMessage is taking over the text messages on your friend's iPhones and since you don't have an iPhone anymore, you can't receive iMessages anymore.
There is a potential fix for all of this...
- Go to: https://supportprofile.apple.com/MySupportProfile.do
- Log in if not already logged in.
- Click on ">" to the right of the phone listing
- Click "unregister"
If that doesn't work, get your SIM card swapped.
Not disputing this at all, because it's definitely accurate info, but in my experience not receiving texts from iPhone users is because I've left my Macbook or iPad connected to the web. This then has the text go to the iOS device instead of reverting to standard SMS.
This happened to me last night. I left my laptop open and I had to have my gf email me her dinner order because her iPhone texts were going to my laptop. Makes her even happier that I've gotten yet another phone.