You will want to complete the steps below before you remove the SIM card from your iPhone.
I repeat: Before you turn off iMessage on your iPhone, be sure to disable it on all other Apple devices on which you are using iMessage. Assuming you own an iPad or Mac or both , here are the instructions for either device. On a Mac, this is done in the Messages app. With Messages open, click on Messages in the menu bar followed by Preferences. Select the Accounts tab, then select your iMessage account. Next, click on the check box next to your phone number to remove it from the device.
3 Ways to Turn off iMessage & Stop Messages from Showing on Mac
You may need to enable one of the email addresses attached to your account before you can remove your phone number. Finally, click on the check box next to Enable this account to remove the check mark and disable your iMessage account on your Mac. Next, do the same thing on your iPad. Launch the Settings app, tap on Messages and slide the iMessage switch to the Off position. After disabling iMessage on any and all devices you use it on in addition to your iPhone, you can now turn it off on your phone.
The process is the same as it was on the iPad: Launch Settings , tap on Messages , slide the iMessage switch to Off. Wait a couple of minutes after disabling iMessage on your iPhone, then send a text message to a contact. I suggest picking someone you know is an iMessage user.
You will know it's a text message when the green Send button shows up to the right of the text field. Also, the bubble for the message you just sent will be green instead of the usual blue.
How Do I Sign Out Of iMessage on My MacBo… - Apple Community
I know the above steps seem like a lot of work, but in reality it only takes a couple of minutes. You just need to plan ahead and disable iMessage before making the switch. In other words, go through the above steps before heading to a carrier store and buying a shiny new Android device or activating a new device that just arrived via FedEx. If you forget to disable iMessage, or lose your iPhone and are unexpectedly forced to make the switch to Android, don't worry.
How to Turn off iMessage on iPhone
I still have had to go through and disable iMessage on my Mac and iPad to ensure the transition went smoothly, but the fact that Apple is taking steps to make the process easier is reassuring. If, after following the above steps, you have contacts reporting they still can't send you messages, ask them to force a couple messages through as a text.
They can do this from their iOS device by long-pressing on the blue message they attempted to send and selecting Send as Text Message. Two or three messages in quick succession usually forces a device to recognize that you no longer use iMessage. If all else fails, you can always use Apple's tool to deregister your phone number from its servers.
Editors' note: Nov 15, 7: MacUser In response to Julia. Hit the button that says Sign Out, or if you're not on the latest update of OSX, hit the big central button with account details on it. Sep 28, 9: Page content loaded.
How to disable Messages in OS X Yosemite (without disabling it on your phone)
Sep 29, 8: I don't have messages in my settings and i dont have a preferance menu when I go to messages. Dec 14, 9: Dec 25, 9: Mar 5, 3: Mar 9, Mar 23, 6: Oct 7, 3: Jan 28, 1: Feb 3, May 27, Dec 4, More Less. Communities Contact Support. Sign in. Browse Search. Ask a question. User profile for user: MacUser Julia.