TheAlarmTech.com

If the Alarm tech changes the EST2 level 3 password via the control sets keypad, you will need that password to download the panel the need time, without it you can not download the panel.

The default lvl3 password is - 3333
After a download the lvl3 password is always defaulted back to 3333
you can upload the slc without the lvl3 password.
The panels time/date needs the lvl3 password to be changed.

- If a download is needed without the lvl3 password you may need to replace the panel.

although, there is only 0001-9999 different passwords, at 20 tries per minutes thats 8.3 hours.

Leo, one of those 9999 combos is the back door password. :-}