Deregister iMessage You may need to turn off iMessage if you are now using a non-Apple phone and can't get SMS or text messages someone sends you from an iPhone. Still have your iPhone? Follow the steps below to turn off iMessage. Transfer your SIM card to your iPhone. Go to Settings. Tap Messages. Turn iMessage off. No longer have your iPhone? Follow the steps below to deregister your phone number. Javascript required. To use Deregister iMessage, enable javascript in your browser and try again. Cookies required. To use Deregister iMessage, enable cookies in your browser and try again. 1 Enter your phone number Enter the phone number you want to deregister from iMessage and we'll send you a confirmation code. United States of America (+1) (Select Country) Search Country Search Country Suggestions collapsed. Phone Number Phone Number This text message is free. Send Code Sending Code Code Sent 2 Enter confirmation code Enter the 6-digit code we sent to you to confirm deregistration. Didn’t receive a code? Confirmation Code Confirmation Code Resend code. Sending Code Code Sent. Sorry, but too many codes have been sent. Please try again later. Questions Answered. Answers to all your questions about iMessage deregistration (opens in new window)