Text messages may not be sending due to several common reasons including poor network signal, incorrect phone number or format, being blocked by the recipient, the recipient's phone being off or out of service, Do Not Disturb mode active, or issues with the SMS app or carrier restrictions. Other factors can include SIM card problems, message content flagged as spam, excessive texting triggering filters, or incorrect date and time settings on the phone.

Common Causes and Fixes

• Poor Network Signal: Weak or unstable mobile signal can prevent messages from sending. Moving to an area with better reception or waiting for signal improvement helps.

• Incorrect Number Format: Sending to an invalid or incorrectly formatted number blocks delivery. Double-check the number and country code.

• Being Blocked: If the recipient has blocked the sender, messages won't send through. Confirm through other channels.

• Recipient’s Phone Issues: If the recipient’s phone is off, in airplane mode, or out of service, messages cannot be delivered instantly.

• App or Settings Issues: SMS functionality might be disabled, or the messaging app could have bugs. Restarting the app, clearing cache, or reinstalling may fix this.

• Carrier Filters or Restrictions: Messages that appear spammy or violate carrier policies could be blocked.

• Date and Time Settings: Incorrect phone date/time settings may cause syncing issues blocking message sending.

Suggested Steps to Resolve

• Check mobile signal strength and move to a better area if needed.
• Verify the recipient’s phone number and format.
• Ensure SMS/MMS is enabled in phone settings.
• Restart the phone and messaging app.
• Update phone software and messaging app to the latest version.
• Confirm recipient hasn’t blocked your number.
• Check for any service outages with your carrier.
• Set phone date and time to automatic.

These steps cover the most frequent reasons texts fail to send and how to address them effectively.