Message may be corrupted on recipient device change input mode to automatic

If you got an alert in your Samsung Galaxy S2 that say: message may be corrupted on recipient device. Do not send the message because your friend will get a ???? text message. Follow this tutorial to fix the problem.

Step 1: In the Attention message click Cancel. This will not send your message which is good for now.

Step 2: Go to Messaging app.

Step 3: Click Settings.

Step 4: Click Input mode.

Step 5: Select Automatic.

It should send message with regular text instead of ??? text.