Accenta 8 not working after trying to change code.

[CvB]

I wanted to change the code to my own code. I followed the instructions, but now it will not take any code the new nor the old. The red and green light are on. Alarm test works. If I switch the mains power off and on again the alarm sounds. So now I had to switch is off at the mains. Does any one know what to do to get it working again with my own code.
Help much apprecited,
Cornelis.
The manuel I used is attached.

 

[secureiam]

If you followed the procedure you will have downpowered put the link in and powered up, removed the link and secured the tamper.

If the system is in tamper you can silence the alarm with the code but go no further until tamper secured.

 

[secureiam]

If the procedure was successful the new user code should silence the system. If not the old code should silence.

If nothing works then look at repeating the process and putting the system back to as it was.