To Reset Installer or Master code: Disconnect battery from the panel. Disconnect transformer from wall socket. Keyboard panel should be dead now. Connect transformer/AC. Within 50 seconds press and hold the * and # keys simultaneously for 3 full seconds. Connect battery. "installer code 20" or "20" should show up on the LCD. To Reset installer code: Press *20 followed by 4 digit installer code. Hear 3 beeps. To set a new master code: [installer code] + 8 + 02 + 4-digit-master-code. You can set other user codes now: Add a user code: [Master Code] + [8] + user # + [New user code] + [New user again] user # 01 => Installer (Installer can change installer code). user # 02 => Master user # 03 => Partition 1 master user # 05 => could be a good new user. <=49 user 3 to 32 => defaulted to part...
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