Changing emergency disarm code

The current emergency disarm code must be known to change the code

Find the factory issued emergency disarm code on the sticked inside printed manual. 

The emergency disarm code can use any digits except zero

Changing the emergency disarm code by SMS text command

To change emergency disarm code, send SMS text command 0050XXXXYYYY,
where XXXX - 4 digits of an old code
YYYY - 4 digits of a new code.