Using the Backdoor to Enter Programming on a Honeywell L5200 or L5210

In this video, Michael from Alarm Grid shows you how to get into programming on a Honeywell L5200 or Honeywell L5210 using the backdoor method. The reason why you would use the backdoor method to get into programming is because you became locked out of programming. The two most common reasons why a user would become locked out of programming are because they lost the system's Installer Code, or because they chose to not allow the installer to re-enter programming when they exited programming last.

To prevent being locked out of programming, a user should make sure to always choose "Yes" when asked if they want to allow the installer to re-enter programming. The user should also keep their system's Installer Code at its default setting of 4112. Keeping the Installer Code at its default does not represent a security risk, as long as they do not arm the system using this code. Instead, the user should always arm and disarm using the Master Code or a valid user code.

In the event that you become locked out of programming you can get back in by using a process known as the backdoor method. This process involves rebooting the panel and then performing a set sequence of commands once the system boots back up. The panel can be rebooted by choosing the menu option inside of Master Tools. If a user cannot access the Master Tools Menu, they can unplug the panel's transformer and disconnect its backup battery to power it down, and then plug the transformer back in to begin the reboot.

It is important to note that the backdoor method cannot be performed in the panel is in an armed state. If you are locked out of programming while the system is armed, then your only options are to either "brute force" your way into disarming the system by repeatedly trying codes until one disarms the system, or replace the panel.

https://www.alarmgrid.com/faq/how-do-i-get-back-into-programming-if-i-am-locked-out-on-my-l520

http://alrm.gd/get-monitored