Can't send or receive text messages - iPhone 4 to Samsung Galaxy S4

[Enalon]

On Sunday I went to the AT&T store and upgraded from my iPhone 4 to the Galaxy S4. Up till this point, the entire time I've been with AT&T I've had an iPhone.
When I attempt to text someone from my new phone, all appears normal and I just originally thought no one was responding. I then later realized I was still receiving iMessages on my old iPhone while it was connected to the wifi. I called AT&T's phone support and was on the phone with them for over an hour attempting to trouble-shoot the issue and it's now been escalated and "someone" is supposed to get back to me and have it resolved by the 19th. I am unable to send or receive messages from anyone on my new phone regardless of carrier or type of phone. No AT&T, no Verizon, no iPhone, no other Android phones. No SMS or MMS at all. Phone calls, wifi & 4G work perfectly.

Here's what I've done so far:
I have turned iMessage off my iPhone.
I have gone to the Apple website and unregistered my iPhone.
I have gone into the settings of the iPhone and changed "My Number"
I have done a factory reset on the Galaxy S4.

 

[dkaralis]

Did you go to Apple's support site and unregister your phone number from iMessage? That's what I did and I was able to get my text messages.

 

[Jimmy Puetz]

Turn off the spam settings for messages on your S4 and it works. go to messages, select the options button on the bottom left and then select Spam Messages, turn off spam messages...now I get all my iphone people texts.

 

[griffit]

you must have an iPad or an iPod touch or some other Apple device with Imessaging capabilities you go to that device open settings go to messaging touch that theN you will see a list of all the things you allowed to receive imessages uncheck your phone number and this will completely cure your problem what happens is someone sends and iMessage it looks for your iPhone then it can't find your iPhone so it sees that your phone number is also associated with an iPad or I Touch sor some other Apple thing it goes to those devices instead of your new phone. now tell me again why I left the apple tree. Propratory messaging really?? I know people who were going to switch back because of this and apple will tell you it is a androit/Samsung problemyou may have to do this to your old iPhone tobecause if you accidentally turn it on using wifi it will also steal your messages the same way

 

[Jennifer Parker1]

I'm having the same issue. I turned off spam and I got a text message from one person with an iphone but not another person.
This is really aggravating. I just got my Galaxy today.
What else can I do? I've turned off iMessage on my old phone.

 

[iFrosty]

If you have done all of that from apples website (removing yourself from iMessage, from the list of registered devices,etc) you are fine. Give it some time to register with Apple. The other thing you can do is tell you friends to delete your number, wait a bit, and then message you and see if it can force it.
I had the same issue for the first couple days when i switched. Time is the only thing that can be of service for you. It will eventually fix itself.

 

[lee_michael_f92]

you must have an iPad or an iPod touch or some other Apple device with Imessaging capabilities you go to that device open settings go to messaging touch that theN you will see a list of all the things you allowed to receive imessages uncheck your phone number and this will completely cure your problem what happens is someone sends and iMessage it looks for your iPhone then it can't find your iPhone so it sees that your phone number is also associated with an iPad or I Touch sor some other Apple thing it goes to those devices instead of your new phone. now tell me again why I left the apple tree. Propratory messaging really?? I know people who were going to switch back because of this and apple will tell you it is a androit/Samsung problemyou may have to do this to your old iPhone tobecause if you accidentally turn it on using wifi it will also steal your messages the same way

Go to all your iDevices and deskect iMessages.

Sent from where the wild things are.

 

[Nici Graham]

Have had the same problem after swapping over to S4! after a week of trying to solve the problem...which included-
turning off imessage and signing out of Apple ID on old iphone
changing apple ID in support.apple.com
removing telephone number from Apple ID
getting Apple users to delete and re add my number,
getting apple users to turn off their imessage
the list is endless.

In the end the only way to actually solve this problem is to contact Apple support!
spent 30 minutes going through all of above (again!) for me to then ask them to remove me completely from the apple systems!
suddenly she sent me a code to my mobile number on my samsung, then removed my tel number from their system.

Problem solved.

Its horrendous how difficult apple are choosing to make it! my tel no has been mine for years, yet as soon as i associated it with apple, it seems they basically intergrate it into their system and therefore cause you un measurable pain in trying to move to a different phone provider!!!!!

 

[benseattle]

you must have an iPad or an iPod touch or some other Apple device with Imessaging capabilities you go to that device open settings go to messaging touch that theN you will see a list of all the things you allowed to receive imessages uncheck your phone number and this will completely cure your problem what happens is someone sends and iMessage it looks for your iPhone then it can't find your iPhone so it sees that your phone number is also associated with an iPad or I Touch sor some other Apple thing it goes to those devices instead of your new phone. now tell me again why I left the apple tree. Propratory messaging really?? I know people who were going to switch back because of this and apple will tell you it is a androit/Samsung problemyou may have to do this to your old iPhone tobecause if you accidentally turn it on using wifi it will also steal your messages the same way

Removing phone number from IPad worked for me. Thanks!