Smartphone unable to send SMS

4.5

Text messages fail to send, showing a "Not Sent" or "Retry" error.

Symptoms
  • Red exclamation mark
  • Sending... forever
  • Error code 38
Possible Causes
  • Wrong SMSC number
  • No signal
  • Messaging app bug

Step-by-Step Fix

1

Check SMSC Number

Ensure the SMS Center number is correct for your carrier.

2

Clear App Cache

Clear cache for the Messages app.

3

Force Stop Messages

Restart the messaging service.

When to See a Technician

SMSC (SMS Center) errors are the most common reason for SMS-only failures.

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