Q: I'm in a group message with 12 people. All are iPhone users, except for the token Galaxy user. I can receive messages, but I cannot send them. How can I fix this?

Hey kenth93939!

Here is an article for you about group messages that has some helpful information and troubleshooting tips for this issue:

iOS: Understanding group messaging

http://support.apple.com/kb/HT5760

The Group Messaging setting applies only to MMS messages.

• Your wireless carrier may restrict the maximum number of recipients allowed in a group message with MMS.
• Disabling Group Messaging has no effect on iMessage behavior. Responses to group iMessages are always sent to all recipients.
• Group messaging with MMS requires an appropriate plan from your carrier for use on iPhone.
• Carrier messaging rates may apply when using group messaging with MMS.

 

Additional Information

• It is not possible to remove yourself from a group message.
• To add or remove recipients, you must create a new group message conversation.
• If you experience an issue with iMessage, SMS, or MMS messaging, try the steps outlined in this article.
• To learn more about SMS, MMS, and iMessage see iOS: Using Messages.

Thanks for being a part of the Apple Support Communities!

Cheers,

Braden