Installation Guide incorrectly translated

We bought eight of these linkable smoke alarm. However, only 2-4 were always link together.
Each smoke detector was working on its own - but the test communicated only two to more than four smoke detectors together.
We spent half a day with testing, it was neither on the removal of the smoke detector under einandern nor to false Bediehnung.
Depending on which smoke detectors we "Master" went to - it always communicated with each other smoke detectors. It gave at most only four smoke detector alarm, the other flashed only, but without giving a sound.

After searching the internet we discovered that the installation manual is not well translated and missing an important part.
Someone had the same problem as us and has provided a revised guidance in its recession - and thus worked the link immediately and without any problems. Everything as it should be! Prima!
Provider Handynow very customer friendly and accommodating!

If someone has trouble ... here the "other" version of the installation instructions:

1. Insert a 9V battery and 3 pcs 1.5V batteries (see image).
2. The red alarm LED flashes approximately every 40 seconds in the on state (see picture).
3. Press the TEST button for a few seconds, the alarm and the Learn LED (red and
green) LEDs flash, then the smoke alarm sounds. This shows that the smoke detector in operative
State (see picture).
LEARNING Programming
Setting the central smoke detector / the activated smoke detector
1 After commissioning you integrate the smoke detector to the online system. Press
the LEARN button, each time will change the LED LEARN from red to green or vice versa.
2. Central smoke detectors: Please make sure that the indicator on the LEARN button is GREEN.
3. switched in smoke detectors: Please make sure that the LED zuzuschaltenden the other (
Smoke detectors) RED.
4. LEARN process: Press the test button of the central smoke detector for a few seconds,
send out the signal to the zuzuschaltenden smoke detectors. Now flash the red
Alarm LEDs de zuzuschaltenden smoke alarm and the siren sounds. Then press
the test button of the zuzuschaltenden smoke detector for a few seconds to the signal to
send the central smoke detector. Then the central smoke detector receives the signal and
also the siren sounds. The setting is completed.