File is too large: The total size of the message text and image must be under 5MB for our system, but carriers often limit to smaller file sizes:
AT&T | 1 MB |
T-Mobile | 3MB |
Verizon | 1.2 MB |
US Cellular | 500 KB |
2. Unsupported File Types: most carrier support PNG and JPG
3. Sender Must Enable Mobile Data: MMS requires cellular data (not wifi)
4. Low Cell Signal: Ensure you have at least 2 bars of signal strength