A common problem for any Android user may be that they cannot send a text message to a single person. They can send and receive text messages from others, but for some reason, messages sent to this one person just aren’t getting through.
Here is a list of things to check to troubleshoot this issue.
Restart the Phone
A simple restart might do the trick. Hold down the “Power” button, then select “Restart“.
Sometimes blocking happens accidentally. Check to be sure that you didn’t accidentally end up on a block list either with the message recipient’s carrier or on the block list of the recipient’s phone.
Check Contact Number
Open the “Contacts” app and ensure the phone number is correct. Also try the phone number with or without the “1” before the area code. I have seen it both work and not work in either configuration. Personally, I just fixed a problem texting where the “1” was missing.
If the recipient or sender has used or is currently using an iPhone, it can cause problems with Android users since the iPhone utilizes the iMessage network. Have the iPhone user disable iMessage by going to “Settings” > “Messages” and setting “iMessage” to “Off“.