If you are getting one flash on LED 1 this means the panel is having trouble communicating with the cellular module
1. Power Cycle the panel
2. Press 8 then enter the Installer Code 4321 then press 3
3. Within 5 seconds press 1 then enter the Installer Code again
4. Keypad beeps and enters then exits programming, check with Alarm.com website to see if successful
If it does not work the first time try performing steps 2 and 3 again. If the problem still persist please contact Safemart Technical Support.