SEND FAILED 403 relates to issues with your SD card. Here are the two likely causes and how to address each:
1. Confirm that your SD card is 32GB or less. If it's the card we sent with your camera, then it 32GB.
2. Re-Format your SD card in your camera. Turn the camera to SETUP mode. Then press the UP arrow. Then press the MENU button. Arrow up/down so that FORMAT is red, then press the OK button. Arrow so that YES is red, then press the OK button. Then confirm. Upon completion, your camera will say NO FILE. Press the UP arrow to escape.
After both of the above are complete, try taking another test picture.
Most other SEND FAILED ### relate to cellular connectivity. If your camera displays a code other than 403, please contact us to help.