How to Fix “Last Line No Longer Available” on iPhone

“Last Line No Longer Available” is an error message that may appear on an iPhone when trying to send a text message. This error is usually caused by a problem with the recipient’s phone or network, rather than your own device. Here are some steps you can take to fix this issue:

  1. Check your network connection: Make sure that your iPhone has a strong and stable network connection, either Wi-Fi or cellular data.
  2. Try sending the message again: Wait for a few minutes and try sending the message again. The issue may be temporary and may resolve on its own.
  3. Restart your iPhone: Press and hold the power button until the “slide to power off” option appears, then slide the button to power off your iPhone. Wait for a few seconds, then press and hold the power button again to turn it back on.
  4. Disable and re-enable iMessage: Go to Settings > Messages > iMessage and toggle off the switch. Wait for a few seconds, then toggle it back on.
  5. Delete the message thread: If the issue persists, try deleting the message thread and starting a new conversation with the same recipient.
  6. Contact the recipient: If the issue persists, the problem may be on the recipient’s end. Contact them and ask them to check their phone and network settings.

If none of these steps resolve the issue, you may need to contact your wireless carrier or Apple support for further assistance.